testo 316-4 – Leakage detector for refrigerants

testo 316-4 – Leakage detector for refrigerants Key features :

  • Extremely high sensitivity of ˂3g/a enables detection of even the smallest leaks
  • Visual and acoustic alarm for optimum leakage detection
  • Permanent sensor check, ensuring that your work is both safe and fast
  • Earplug connection for safe leakage detection in loud environments
(1 customer review)

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testo 316-4 – Leakage detector for refrigerants

Order-Nr. 0554 3180

Everything you need for professional leakage detection. The testo 316-4 set 1 with leak detector is for all common refrigerants, CFC, HFC, HCFC, and H2, and includes a refrigerant sensor head, case, mains unit, and earphones. You will be ideally equipped to carry out quick, reliable leakage detection.

Leaks on a refrigeration system or heat pump have serious consequences. A leaking system no longer provides its required cooling capacity, and, in the worst-case scenario, system components can be damaged, not to mention the environmental damage and costs incurred by your customer. You need fast, reliable measuring instruments such as the Testo 316-4 leak detector, in order to be able to detect even the smallest of leaks.

testo 316-4 – Leakage detector for refrigerants Specifications :

  • Operating humidity: 20 to 80 %rH
  • Weight: 12.28 oz. / 348 g
  • Reaction time: < 1 sec
  • Dimensions : 7 x 2 x 2 in. / 190 x 57 x 42 mm
  • Operating temperature : -4.0° to 122.0 °F / -20 to +50 °C
  • Product color: Black
  • Length of gooseneck: 14.567 in. / 370 mm
  • Start-up time : <50 sec (0 … +50 °C); <50 sec (0 … +50 °C)
  • Detectable: R134a; R22; R404A; H2 and all common refrigerants such as CFC, HCFC, HFC NH₃ (separate sensor head)
  • Sensitivity : 3 g/a
  • Leakage alarm: optical and audible alarm
  • Standards: EN 14624:2012
  • Alarm signal : rpm – Optical; audible
  • Battery type: 1 battery block (6 cell NiMh)
  • Storage temperature : -13.0° to 158.0 °F / -25 to +70 °C
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Testo Corporation Testo is a world leader in the design, development, and manufacture of portable test and measurement instrumentation and solutions. Backed by 60 years of measuring engineering experience, our mission is to provide the best quality, service, and value in the industry. In addition, Testo is recognized as the leading worldwide manufacturer of portable combustion efficiency analyzers and air emission analyzers. Testo has become a major supplier of HVAC, critical HVAC, refrigeration, airflow, and environmental monitoring instruments for markets as diverse as chemical, food service and production, pharmaceutical and biotechnology, and residential HVAC suppliers.


Gas detector

optical and audible alarm

Mechanical and General Specifications

190 x 57 x 42 mm.


348 g


1 battery block (6 cells NiMh)

Operating temperature

-20 to +50 °C

Storage temperature

-25 to +70 °C

Other features of the device

Detectable: R134a, R22, R404a, H2 and all common refrigerants such as CFC, HCFC, HFC NH₃ (separate sensor head), Reaction time < 1 s

Measurement Unit


Lower reaction threshold

3 g/a