Feature:1. FAST DETECTION: Mini gas detector is used for fast and reliable detection of flammable gas leaks, provide great convenience for your home2. GAS SENSING SEMICONDUCTORS: Combustible gas detector possess good sensitivity, excellent repeatability, and long service life3. NON SLIP ABS: The shell is made of good quality ABS engineering plastic material, composite non slip, possess impact resistance4. WIDE APPLICATION: Widely used in metallurgy, petroleum, chemical, coking, municipal, biochemical medicine, agriculture and other industries5. FLEXIBLE DETECTION: Long probe for easy access into difficult to reach areas, one hand operation makes gas leak detection quick and easy in your home, RV, or other workplaceSpecification:Item Type: Mini Gas DetectorModel: HT66Material: ABSBattery: 2 x 1.5V AAA (not included)Uses: Can be widely used in metallurgy, petroleum, chemical, coking, municipal, biochemical medicine, agriculture and other industriesBasic Parameters: Sensor: Gas sensing semiconductorResponse Range: About 50PPM~1000PPM (methane)Sensitivity: About <50ppm (methane)Warm Up Time: About 30 secondsResponse Time: <=500PPM: About 5 seconds>500PPM: About 2 secondsAlarm Mode: Buzzer and indicator light.Package List:1 x Mini Gas Detector1 x User Manual