The D840 features durable electrolyte sensor technology
It is designed to detect halogen refrigerants and forming gas.
D840's unique digital leak size indicator removes any doubts
If a small leak needs to be repaired or not.
The digital display is independent of the audio alarm and sensitivity level
So the leak source can be accurately located.
Unique numerical leak size indicator
Detects all CFCs, HFCs, HCFCs and HFOs.
Meets or exceeds the performance standards of EN14624
Visual LED Leak Alert Near Sensor
Low battery indicator
Sound mute function
Durable, stable sensor
Detects forming gas (95% N2/5% H2)
Automatic reset to ambient temperature
Three adjustable sensitivity levels
Fully mechanical pump
Operates on four AA alkaline batteries
Comfortable rubber handle
|Sensitivity||Leak detector (95% N2/5% H2): 1 g/a
4 g/a R134a equivalent)
R134a: 5 g/a
R1234yf: 1 g/a
|Sensor life||>300 hours|
|Power supply||Four AA alkaline batteries|
|Battery life||Approximately four hours|
|Warm-up time||<20 seconds|
|Probe length||43 cm (17 inches)|
|Numerical display||Seven segment digital display (1 to 9)|
|Weight||0.7 kg (1.5 lbs)|