Features:Adopting high quality sensor, high sensitivity and long service life.This halogen gas detector could detect most halogen gases containing chlorine, fluorine and bromine.It can detect ethylene oxide leakage of hospital disinfection equipment and SF-6 in high-voltage circuit breakers.Detection of cleaning agents used in dry cleaning equipment, such as carbon tetrachloride, can also be used to detect halon in fire extinguishing systems.Low power consumption circuit design, so that the work more stable, more durable battery.Specification:Condition: 100% brand newWeight: 236g/8.3ozWorking temperature: 0 ~ 52Maximum sensitivity: for halogen refrigerants, 6gr/yearBattery life: about 50 hours under normal useResponse time: instantaneousMode: continuous, unlimitedPreheat time: about 6 secondsReset time: 2-10 secondsFixed probe length: 20cm/7.9inchUnit size: 36 * 3.5 * 4cm / 14.2 * 1.4 * 1.6inPower supply: 4* 1.5V AAA batteries (NOT included)Package List:1* Halogen Leak Detector1* Instructions