• Detecting gas: combustible gas, such as natural gas, LPG and coal gas
• Detecting range: 0-100% LEL
• Sampling method: diffuse naturally
• Working condition temperature: -40℃-70℃
• Humidity: less than 95% RH
• Power source: DC 3V (2 pcs AA batteries)
• Battery life: 6 hours when no working, 5 hours when voltage is low
• Working electric current: 140mA on average
• L-alarm: 20% LEL
• H-alarm: 50% LEL
• Response time: less than 10S
• Resume time: less than 10S
• Alarming method: visible and audible
• Alarming sound: greater than 50dB