The D420 features a powerful electrolyte sensor technology designed to meet more common and
Detect problematic HFC refrigerants such as R-134a, R-410A, R-404A, R-407A and R-507 in addition to the new refrigerants
HFO-1234yf and all HCFCs (R-22) and CFCs (R-12) including SNAP approved hydrocarbon blends.
D420 does not require rechargeable batteries.
Detects all CFCs, HFCs, HCFCs and HFOs
Certified design meets European standard EN14624
Low battery indicator
Sound mute function
CE certified
Durable, stable sensor
Automatic calibration and reset to ambient temperature
Three adjustable sensitivity levels
Fully mechanical pump
Operates on four AA alkaline batteries
Comfortable rubber handle
Sensitivity | 1 g/yr R134a, 1 g/yr R1234yf |
Sensor life | > ten years |
Response time | Immediate |
Power supply | Four AA alkaline batteries |
Battery life | Approximately 4 hours |
Warm-up time | <20 seconds |
Probe length | 43 cm (17 inches) |
Weight, grams | 680 |