ADVANCED LEAK DETECTOR INFRED & HEATED DIODE SENSORS Refrigerants: CFCs,HFCs,HCFC series and HFO-1234YF Sensor life: Infrared Sensor: 10years;Heated Diode Sensor: 500hrs Sensitivity: Infrared Sensor Max 4g/a;Heated Diode Sensor Max13g/a Alarm mode: Audible and visual alarm Auto off: After 10 minutes of inactivity Battery: 2*18650 lithium battery (see Battery Replacement Diagram) Working hour: 8hrs continuously(in a single charged) Charging time: Approx.4hrs Power supply: DC 5V,1A Storage temperature: -20℃~60℃/-4℉~140℉ Humidity: 90%RH(non-condensing) Operating temperature: -10℃~52℃ Approvals: Compliant to CE,EN14624:2012, RoHS,SAEJ1627,SAEJ2791,SAEJ2913