HALOGENLEAK DETECTOR Sensor lifetime: 50h; Sensitivity range: 7levels; Maximum sensitivity: 5g/yr; Response time: <1s; Warm-up time: 6s; Reset time: 3s; Refrigerants: CFCs/HCFCs/HFCs/HCs/HFOs; Power supply: 4AAA alkaline battery(not include); Battery life: about 20h; Approvals: Compliant to Standard: SAE-J1627,EN14624; Overall size: 6*1.4*1.4 inch; Probing rod length: 7.8 inch;