Used Temperature Controle for sale (45,554)

Condition: excellent (used), CTS Type: TW -60/9 Temperature test cell water-cooled CTS temperature test cell type TW -60/9 Tsdjvb E Uqjpfx Ab Djd T means: Temperature W means: Walk in -60 means: lower temperature -60°C 9 means: 9 m³ test chamber volume Technical design: Refrigeration unit: water-cooled, low-noise, semi-hermetic, infinitely variable capacity adjustment by electronic monitoring and control system, environmentally friendly refrigerant R23 / R404 A Control system: 32 bit controller LCD control panel Digital display of set and actual values Numerical input of setpoints Error messages in plain text RS 232 interface Free switching channels for on-site test material control Technical performance data: Temperature tests: Temperature range -60 °C to +100 °C Temperature deviation ± 0.1 to 0.5 K in time Average rate of temperature change with test material and with heat radiation measured in the supply air. Heating: 1.6 K/min from -40 °C to +85 °C Cooling: 1.6 K/min from +85°C to -40°C Test material 420 kg of solar cell modules with100% flow Heat radiation 3000 Watt permanent The technical data refer to an ambient temperature of +25 °C, nominal voltage 400 V, without test material, without irradiation and without additional equipment. Dimensions: Test volume 9 m³ External dimensions: Width approx. 4140 mm, depth 2680 mm, height 3000 mm Test chamber dimensions: Width approx. 1600 mm depth 2400 mm, height 2200 mm Operating data: Electrical connection 400 V +6/-10 %, 3/N, PE, 50 Hz Rated power 48.9 kW Rated current: 74.9 A Protection class IP 54 Cooling water connections Cooling water supply/return R1 ¼"", internal thread Unpressurized condensate drain R1" internal thread Weight: approx. 5609 kg Condition: used / second-hand Scope of delivery: (see picture) (Changes and errors in the technical data, specifications are reserved!) We will be happy to answer any further questions you may have on the phone.

Condition: new, Year of construction: 2025, General: -Temperature range max. 150°C for OeL (heat transfer fluid) -robust sheet steel housing -device on rollers Hydraulics: -sealless immersion pump -Qmax. 60 l/min. - Pmax. 3,8 bar -Tank and heater made of stainless steel -Heating capacity 9 kW -Tank capacity ~20 liters -fittings made of brass/stainless steel -manual oil filling -mechanical level control -indirect cooling system (tubular spiral heat exchanger) -cooling capacity ~40.000 kcal/h -manometer -bypass -solenoid valves for cooling Electrical and control system: -Electronic PCB control -Solid State Relay -Safety thermostat -failure monitoring -Connection cable with plug Available in approx. 4 weeks! Tedpfx Ajddv Itjb Djd

Condition: used, functionality: fully functional, total height: 3,400 mm, inner diameter: 3,000 mm, usable tank capacity: 22,000 l, TECHNICAL CHARACTERISTICS - Temperature-controlled tank - Make : ETA - Total capacity: 22,000 litres - Material : stainless steel ROOF - Closed - Balustrade VIROLE - 1 ladder support bar - 1 complete level tube - 1 tasting tap Tjdpfx Abov I A Tqs Dsd - 1 rectangular door - 1 partial drain valve with PVC plug - 1 full drain valve with PVC plug - 1 serpentine radiator BOTTOM - flat DIMENSIONS - Diameter: 3000 mm - Height: 3400 mm

Condition: excellent (used), Buderus G 605 low temperature boiler 1020 kW Tsdpfxjwynuij Ab Djd

Condition: excellent (used), Feutron Tedpfx Aof E N Sxeb Ded TPK 3403/15 Temperature test chamber -40 to +100°C

Condition: good (used), Nabertherm High-Temperature Furnace 1600 °C The HT 04/16 - HT 450/18 high-temperature furnaces have proven themselves in the laboratory and in production for many years. Whether for quartz glass, glass-ceramics, the sintering of CIM components, or other processes up to a maximum temperature of 1800 °C, these furnaces represent the optimal solution for the sintering process. Thanks to their solid construction and compact, floor-standing design, these high-temperature furnaces are ideal for laboratory processes that require the highest precision. Excellent temperature uniformity and sophisticated details set unsurpassed quality standards. Tmax 1600°C Double-walled housing construction with fan cooling, resulting in low outer wall temperatures Heating from both sides via molybdenum disilicide heating elements High-quality fiber insulation with special backing insulation Side insulation, constructed from tongue-and-groove blocks, ensures low heat loss to the outside Durable ceiling insulation with special suspension Parallel swing door with chain guide for defined opening and closing of the door Labyrinth seal ensures minimal temperature loss in the door area Exhaust air vent in the furnace ceiling Tedjwxwa Eepfx Ab Dsd Heating element control via thyristors NTLog Basic for Nabertherm controller: Recording process data via USB stick Maximum temperature: 1600°C Internal dimensions (mm): 200x200x200 External dimensions (mm): 830x370x590 Volume (L): 4 Connected load (kW): 5.2 Electrical connection: 3-phase Weight (kg): 150 Find more items – new and used – in our shop! International shipping costs on request!

Condition: excellent (used), CTS Tedpfx Aevb Hanob Dsd Type: TW -60/9 Temperature test cell water-cooled CTS temperature test cell type TW -60/9 T means: Temperature W means: Walk in -60 means: lower temperature -60°C 9 means: 9 m³ test chamber volume Technical design: Refrigeration unit: water-cooled, low-noise, semi-hermetic, infinitely variable capacity adjustment by electronic monitoring and control system, environmentally friendly refrigerant R23 / R404 A Control system: 32 bit controller LCD control panel Digital display of set and actual values Numerical input of setpoints Error messages in plain text RS 232 interface Free switching channels for on-site test material control Technical performance data: Temperature tests: Temperature range -60 °C to +100 °C Temperature deviation ± 0.1 to 0.5 K in time Average rate of temperature change with test material and with heat radiation measured in the supply air. Heating: 1.6 K/min from -40 °C to +85 °C Cooling: 1.6 K/min from +85°C to -40°C Test material 420 kg of solar cell modules with100% flow Heat radiation 3000 Watt permanent The technical data refer to an ambient temperature of +25 °C, nominal voltage 400 V, without test material, without irradiation and without additional equipment. Dimensions: Test volume 9 m³ External dimensions: Width approx. 4140 mm, depth 2680 mm, height 3000 mm Test chamber dimensions: Width approx. 1600 mm depth 2400 mm, height 2200 mm Operating data: Electrical connection 400 V +6/-10 %, 3/N, PE, 50 Hz Rated power 48.9 kW Rated current: 74.9 A Protection class IP 54 Cooling water connections Cooling water supply/return R1 ¼"", internal thread Unpressurized condensate drain R1" internal thread Weight: approx. 5609 kg Condition: used / second-hand Scope of delivery: (see picture) (Changes and errors in the technical data, specifications are reserved!) We will be happy to answer any further questions you may have on the phone.

Condition: used, functionality: fully functional, All data in enclosure passport. Price on request. Tsdpswwt Shefx Ab Djd Description: Low-temperature desulfurization (DeSOx) system for boilers K8, K9, K10, and K11 at the heating plant operated by TAMEH Czech s.r.o. (now Vitkovice Energy s.r.o.). Key Details: Purpose: Removal of sulfur oxides (SOx) from flue gases at low temperatures. Coverage: Installed on boilers K8, K9, K10, and K11. 1. Equipment description 1.1 Basic data and functional characteristics The desulphurisation plant is used to reduce emissions of SO2 and particulate matter from the flue gases of boilers K8 (100 t/h steam), K9 (200 t/h steam), K10 (200 t/h steam), K11 (230 t/h steam). The desulphurisation building is connected to the outlets of the existing smoke fans behind the electrostatic precipitators of boilers K8 to K11 by new flue pipes. The key component of the desulphurisation process, using the so-called semi-dry method, is the 2 vertical fluidised bed absorbers, consisting essentially of a large diameter high cylindrical upper section and a small diameter and much shorter cylindrical lower section, the two cylindrical sections being connected by a transition piece in the form of a venturi nozzle. The flue gas enters the absorber through the flue pipe where it is cooled to a temperature of about 80-105°C by water injection. The desulphurising agent calcium hydroxide Ca(OH)₂ is dosed into the absorber. In the absorber, the flue gases react with calcium hydroxide. After the reaction in the fluidised bed, the mixture of flue gas, fly ash and calcium hydroxide leaves the absorber and enters a fabric filter with four modules. Here, the flue gas is cleaned of any residual fly ash. The settled ash and dust residues in the filter media with the addition of reacted Ca(OH)₂ are called the desulphurisation product (unreacted, i.e. active Ca(OH)₂ in the product ranges from 4 - 12%, optimum up to 10%). To ensure maximum availability, the desulphurisation plant has 2 absorbers. Each absorber is designed for 528,750 Nm³/h of dry flue gas, corresponding to 75% of the rated output, for a maximum inlet SO₂ concentration of [value missing]. For a lower inlet SO₂ concentration of up to 600 mg/Nm³, it is possible to operate one absorber with a flue gas quantity of 620,000 Nm³/h. For the quantity of flue gases to be desulphurised, see the following section. This flue gas cleaning procedure is called semi-dry flue gas cleaning - the substances entering the absorber (calcium hydroxide and the return product) should not have a moisture content higher than 1.5%. Equipment included: Fluid absorbers 2x 620000Nm3/h Silo CaO 450 m3 Silo Ca(OH)2 300 m3 Silo desulphurisation product 1000 m3 Scale fan 2x 240 m3/s Compressor station main 3x 1398 m3/h Backup compressor station 1x 310 m3/h Absorption dryers 2x 1916 m3/h Dieselagregate 80 kW

Condition: used, Used temperature control unit Item number: 10636 Make Tool-Temp Up to 90°C Total height 720mm Overall length 730mm Tjdpeuuacfjfx Ab Dsd Total width 300mm

Year of construction: 1992, condition: used, Temperature controller, temperature control device, temperature control device, modular temperature control device, tool heater -Manufacturer: PSG, temperature control device for tool heating up to 8 control zones -Type: RSD II 8 Tjdpfxspwngbs Ab Ded -P max: 21kW -Transport dimensions: 490/400/H490 mm -Weight: 30 kg

Condition: used, CTS Type: TS -70/600-13 Temperature test chamber, water-cooled Type series: TS -70/600-13 Control system: - 32 bit controller - LCD control panel - Digital display of setpoints and actual values - Numerical input of setpoint values - Error messages in plain text - RS 232 interface - Free switching channels for on-site test material control Test chamber volume: 600 liters Tsdpfxovcyaws Ab Dod Test chamber dimensions: Height approx. 730 mm, width approx. 850 mm, depth approx. 830 mm External dimensions: Height approx. 2250 mm, width approx. 1300 mm, depth approx. 2475 mm Temperature range: -70 to +180°C Heating speed: 13 K/min at -40°C to +120°C Cooling speed: 13 K/min at 120°C to -40°C Temperature deviation: ± 0.1K temporal, ± 0.5 K spatial Electrical connection 400/3P/N/PE Nominal power: approx. 27.8 kW Nominal current: approx. 44.1 A Compressor: 4TC-8.2Y/4PC-10.2Y Refrigerant: R-404 A / R-23 Weight: 1350 kg The following information is for your safety as a buyer! The following points are carried out on our offered chambers in advance: 1. functional check and replacement of necessary components 2. if necessary, new filling with legally compliant refrigerant 3. leak test with certificate 4. after successful inspection, the chambers are subjected to a documented test run. Condition: used Scope of delivery: (see picture) (Changes and errors in the technical data, specifications are reserved!) We will be happy to answer any further questions you may have on the phone.

Condition: used, Temperature controller, temperature sensor, setting for temperature, signal converter, temperature converter, temperature limiter, electronic temperature controller Tedpsm Ui Izofx Ab Dsd -Manufacturer: Juchheim, temperature controller type HROt-48/k,ap,os -Temperature range: 0 to 1200 °C -Dimensions cardboard: 195/105/H120 mm -Weight: 0.5 kg

Condition: excellent (used), CTS Tsdovaxq Njpfx Ab Dod Climatic test chamber T-70/600 water-cooled Temperature range: -70°C to +180°C Rated voltage: 400V 3/N PE 50 Hz Rated power: 6.7 kW Rated current: 10.2 A Compressor: TFH2480Z/TFH2511Z Refrigerant R23/R404A Control system: -Microprocessor-controlled control and monitoring system Simple, user-friendly terminal built into the door. -Digital temperature setpoint and actual value display Simple variation via +/- button -Digital input for temperature in °C -PLC compatible -Up to 100 test programs possible -RS 232 interface -2 free switching channels for on-site test material control Insert grid: Stainless steel, contact surface 820 x 710 mm Load per grid max. 35 kg Total load with max. grid configuration 100 kg Cooling unit: Water-cooled, low-noise, fully hermetic Infinitely variable power adjustment through electronic monitoring and control system, environmentally friendly refrigerant R404A/R23 Temperature tests: Temperature range -70 °C to+ 180 °C Temperature deviation ±0.1 to 10.3 K in time Rate of temperature change according to DIN 50 011, part 12 measured in the center of the test room Heating 2.5 K/min Cooling 2 K/min Heat radiation max. 1500 W at +20°C The technical data refer to an ambient temperature of +25 °C, rated voltage 400 V, without test material, without irradiation and without additional equipment. Dimensions: Test volume 600 liters Test chamber dimensions 850 x 830 x 850 mm (W x Dx H) External dimensions 1050 x 1850 x 1900 mm (W x DxH) Operating data: Electrical connection 400 V +6/-10 %, 3/N, 50 Hz Rated power 6.7 kW Rated current: 10.2 A Protection class IP 22 Condensate drain unpressurized R 1/2" internal thread Sound pressure level < 62 dB(A) Weight approx. 400 kg The following information is for your safety as a buyer! The following points are carried out on our offered chambers in advance: 1. functional check and replacement of necessary components 2. if necessary, new filling with legally compliant refrigerant 3. leak test with certificate 4. after successful inspection, the chambers are subjected to a documented test run. Condition: used Scope of delivery: (see picture) (Changes and errors in the technical data, specifications are reserved!) We will be happy to answer any further questions you may have on the phone.

Condition: used, Temperature controller, temperature sensor, temperature setting, signal converter, temperature converter, temperature limiter, electronic temperature controller display -Manufacturer: Kfm, temperature controller display -Type: 800 710 Tedspcmt Topfx Ab Djd -Temperature range: 0...100°C -Voltage: 220V / 48-62 Hz -Quantity: 2x display available -Price per piece -Dimension: 125/100/H50 mm -Weight: 0.4 kg/pc.

Condition: excellent (used), Wittmann Temperature Control Unit Here we offer you a Wittmann temperature control unit. Wittmann Temperature Control Unit DISCO 2 Singulus 3X415V 50/60Hz 16A 5kW Type: TR7B7D7D0X_09_00 Condition: used / used Scope of delivery: (See picture) Todpelkbapsfx Ab Djd (Changes and errors in technical data, specifications are reserved!) Further questions we can answer on the phone for you.

Condition: used, Temperature controller, temperature sensor, temperature setting, signal converter, temperature converter, temperature limiter, electronic temperature controller -Manufacturer: RAM, temperature controller type 320.012 -Temperature range: 30 to 130 °C Tjdpfxsr Im Sce Ab Dod -Quantity: 2 controllers available -Price per piece -Dimensions box: 90/80/H50 mm -Weight: 0.2 kg

Condition: excellent (used), Vötsch Type: VT³ 4150/S Vötsch temperature test chamber Todjinuhgjpfx Ab Dsd Water-cooled Rated voltage: 3/N/PE AC, 400 V ±10 %, 50 Hz Rated power: 11.5 kW Rated current: 22.0 A Rate of change: cooling approx. 3.5 K/min. Rate of change: Heating approx. 4 K/min. Temperature test Temperature range -40°C to + 180°C Display plan External dimensions: W x D x H approx. 1390 x 2380 x 1995 mm Test chamber dimensions: W x D x H approx. 1100 x 1475 x 950 mm Weight approx. 1020 kg / 1540 liters Refrigerant R 404A The following information is for your safety as a buyer! The following points are carried out on our offered chambers in advance: 1. functional check and replacement of necessary components 2. if necessary, refilling with legally compliant refrigerant 3. leak test with certificate 4. after successful inspection, the chambers are subjected to a documented test run. Condition: used Scope of delivery: (see picture) (Changes and errors in the technical data, specifications are reserved!) We will be happy to answer any further questions you may have on the phone.

Condition: used, Temperature sensor, duct temperature sensor, screw-in temperature sensor, temperature sensor -Manufacturer: tmg, temperature sensor type VH54.9i301 Tsdpfx Absikbrmj Djd -Item No.: 1012919 -Measuring range: -40 to 50°C -Number: 3x temperature sensors available -Price per piece -Dimension: 263/136/83mm -Weight: 0.6 kg/pc.

Condition: excellent (used), Weiss temperature chamber Here we offer Weiss temperature chamber. Converted to R452a Weiss temperature chamber air cooled Temperature range: from - 30°C to 180°C Temperature change rate cooling 1,6 K/min Temperature change rate heating 2,1 K/min Test chamber dimensions: Width 550 mm x depth 750 mm x height 800 mm Tsdpeic Rgfofx Ab Dsd Housing dimensions: Width 800 mm x depth 1500 mm x heights 1800 mm Voltage: 3/N/PE AC 400V±10% 50Hz Rated power 4,9 kW Rated current 9 A Refrigerant: R452a Weight: 515 kg Type: WT1-340/30 For you as a buyer the following information for safety! The following points are carried out on our offered chambers in advance: 1. functional check and exchange of necessary components 2. new filling with legally compliant refrigerant 3. leak test with certificate 4. after successful inspection, the chambers are subjected to a test run, which is monitored with calibrated equipment. Condition: used / used Scope of delivery: (See picture) (Changes and errors in the technical data, specifications are reserved!) Further questions we can answer on the phone for you.

Year of construction: 2011, condition: used, Temperature control unit, heating, hot water boiler, hydronic system, hydraulic station for high pressure cleaner, high pressure pump -Temperature control units for: water -electric heating for: pressure washer, high pressure pump -Manufacturer: Frigotrol -Type: S-TT 50/108-D -Power: 110 kW -Connection: -permissible operating pressure: 6 bar Tsdpfx Aboqw D Dpe Dod -Dimensions: 1548/890/H1630 mm -Weight: 380 kg

Condition: excellent (used), Here we offer a Weiss temperature chamber. Weiss temperature test chamber With S!MCON / 32 control Water-cooled (refrigerant converted to R-452A) Touch panel" control unit All control and operating commands can be triggered on the "touch panel" control unit by simply touching the function icons. all control and operating commands by simply touching the function icons. Todpfjrbigfsx Ab Dod Levelling feet To compensate for uneven floors and to ensure adequate ventilation of the machine part, the test chamber is equipped with adjustable feet. Feed-throughs The test chamber is equipped with feed-throughs on the right and left side. Measuring cables and test equipment can be routed through these into the test chamber. Feed-through built into basic equipment R1: NW 125 mm L1: NW 50 mm Test chamber capacity: approx. 335 liters Test chamber dimensions: Height 750 mm, width 580 mm, depth 765 mm External dimensions: Height 1775 mm, width 870 mm, depth 1600 mm Data for temperature tests: Temperature range: -42 to +180 °C Temperature deviation over time in the center of the usable space: ± 0.1 to ± 0.5 K Spatial temperature deviation: ± 0.5 to ± 1.5 K Temperature change rate Heating: 3.2 K/min Cooling: 4.0 K/min Heat compensation max. 2300 W Data for operation: Test room lighting Halogen bulb 2x 24V, 50W Rated voltage: 3/N / PE AC 400 V ± 10% 50 Hz Rated current: 14 A Rated power 4.1 kW On-site fuse 16 A slow-blow Sound pressure level approx. measured at a distance of 1 m from the front. 1m height 56 dB(A) Refrigerant: R-452A Weight: 515 kg Type: WT3-340/40 The following information is for your safety as a buyer! The following points are carried out on our offered chambers in advance: 1. functional check and replacement of necessary components 2. if necessary, new filling with legally compliant refrigerant 3. leak test with certificate 4. after successful inspection, the chambers are subjected to a documented test run. Condition: used Scope of delivery: (see picture) (Changes and errors in the technical data, specifications are reserved!) We will be happy to answer any further questions you may have on the phone.

Condition: used, Temperature controller, temperature sensor, setting for temperature, signal converter, temperature converter, temperature limiter, electronic temperature controller Todpfx Abjm T Aimo Dsd -Manufacturer: Jumo, temperature controller type GROw-48/2a -Temperature range: °C -Dimensions cardboard: 210/150/H90 mm -Weight: 0.8 kg

Year of construction: 2010, condition: excellent (used), Here we offer you a Heraeus Vötsch temperature test chamber. Vötsch temperature test chamber VLM 3068/S air-cooled (building material test chambers loaded from above) Control panel The control panel is mounted on a console on the temperature test chamber. By control and operating commands can be triggered by simply touching the function symbols. can be triggered. The operating instructions for the control panel are enclosed Main switch The main switch is located at the front of the temperature test chamber. Air treatment room The air treatment room is located in the test room and contains the components required for temperature control. In the air treatment room, the air is tempered (cooling/heating) and circulated by the test room fan. circulated by the test room fan. The air is sucked in at the center of the side wall and enters the test chamber again via the air baffles on the long sides. Feed-throughs The temperature test chamber can optionally be equipped with feed-throughs. Through these can be used to route cables and test equipment into the test chamber. Entry port front 2 x 82 mm ∅ rear 1 x 85 mm ∅ Internal dimensions Width 2000 mm Depth 570 mm Height 600 mm External dimensions Width 3000 mm Depth 870 mm Height 1060 mm Technical data: Data for mechanical load: Max. load with test material Test area floor (evenly distributed over the surface) 600 kg Point load 50 kg Data for temperature tests: Temperature range -30 °C to +125 °C Temperature deviation over time in the center of the usable space ±1 K Temperature change rate Heating approx. 1 K/min Cooling approx. 2 K/min Data for operation: Nominal voltage 3/N / PE AC 400 V ±10% 50 Hz Tedpfxsrbiyfo Ab Djd Rated power 3 kW Rated current 9 A Customer fuse 16A slow-blow Temperature test chamber VLM 3068/S Test chamber volume approx. 680 l Weight approx. 700 kg Refrigerant: R-404A Noise measurement Sound pressure level approx. 68 dB(A) Type: VLM 3068/S Condition: second-hand / used Scope of delivery: (see picture) (Changes and errors in the technical data, specifications are reserved!) We will be happy to answer any further questions you may have on the phone.

Condition: used, Temperature controller, temperature sensor, temperature setting, signal converter, temperature converter, temperature limiter, electronic temperature controller, process controller -Manufacturer: Hengstler, temperature controller -Type: West 6600 -Article No.: 0906 Z220000 S -Number: 6 controllers available -Price per piece -Dimensions: 120/50/H50 mm Todpfx Abetuycvo Dsd -Weight: 0.2 kg/piece

Year of construction: 2011, condition: excellent (used), CTS Type: T-30/950 Ex/I CTS Temperature Test Chamber, Explosion-Proof Control – 32-bit controller LCD control panel Digital display for set and actual values Numerical input of set values Error messages in plain text Todpfx Aboihb Amo Dsd RS 232 interface Free switching channels for product-side test specimen activation Temperature Testing: Temperature range: -30°C to +80°C Temperature deviation: ±0.3 K over time Temperature change rate: Heating: 2 K/min Cooling: 1.5 K/min down to -10°C Thermal radiation: approx. 1000 W at +20°C approx. 200 W at -25°C Nitrogen inerting with residual oxygen monitoring With nitrogen inerting, the test chamber is first purged with a large flow rate of N2 until the o2 content drops below 3%. Then, it switches to a base flow amount (approx. 10% of the large flow rate). The nitrogen flow for the base amount is measured and displayed using a flowmeter and monitored via a limit switch. O2 monitoring continuously extracts gas from the test chamber via a flame arrestor and passes it over an O2 sensor which checks the residual oxygen content of the extracted air. Afterwards, the gas is returned to the test chamber via a second flame arrestor. The extraction pump is monitored by a volumetric flow meter. Additional details can be found in the Dräger user manual in the appendix. The gas system is currently deactivated! All technical data refer to an ambient temperature of +25°C, nominal voltage 400V, without test specimen, without irradiation, and without additional equipment. Dimensions: Test chamber volume: 950 liters Test chamber dimensions: Height approx. 700 mm / Width approx. 900 mm / Depth approx. 1500 mm External dimensions: Height approx. 2400 mm / Width approx. 1270 mm / Depth approx. 3125 mm Operating data: Electrical connection: 400V +6/-10 %, 3/N, 50 Hz Nominal power: 21.6 kW Rated current: 36.5 A Protection class: IP 54 Condensate drain: non-pressurized, R 1/2" inner thread Sound pressure level: