Functions: A long, flexible stainless steel probe helps reach do a larger area. Alarm sound and light before flammable gas leakage. With gas leak indicator and low battery indicator. Adjustable sensitivity, adjust different detection requirements. Compact size, light weight, easy do carry and operate. Specification: Brand: SMART SENSOR Model: AS8800L Sensor: semiconductor Sensitivity: adjustable, minimum 50 PPM (methane) Response time: immediate Heating time: Continuous operation time: 9 hours (slightly depends on working conditions) Low Battery Indicator: Yes Product Size: 156x66x31mm or 6.1x2.6x1.2in Working environment: 050, 080 percent RH Storage environment: 1060, 090 percent RH Weight: approx. 221 g or 7,8 oz . SMART SENSOR AS8800L Portable gas detector . SMART SENSOR AS8800L Portable gas detector Specification: Brand: SMART SENSOR Model: AS8800L Sensor: semiconductor Sensitivity: adjustable, minimum 50 PPM (methane) Response time: immediate Heating time: Continuous operation time: 9 hours (slightly depends on working conditions) Low Battery Indicator: Yes Product Size: 156x66x31mm or 6.1x2.6x1.2in Working environment: 050, 080 percent RH Storage environment: 1060, 090 percent RH Weight: approx. 221 g or 7,8 oz . SMART SENSOR AS8800L Portable gas detector . SMART SENSOR AS8800L Portable gas detector