Wireless WiFi Natural Gas Leak Detector LCD Display Alarm Sensor APP Control Specifaction: Installation method: wall mounted;  Overall dimension: 86x86x24 5mm Power supply: micro USB + 5V / 1A Operating current :< 200mA Applicable gas : methane (natural gas) Working environment temperature: - 10 ~ 55 ℃ humidity: < 95% RH no condensation Sampling method: natural diffusion range: 0 ~ 100% LEL Alarm set concentration value : 6% LEL Alarm concentration error ± 3% LEL response time ≤ 30s Features： Normal environment automatically recovers high temperature alarm set value 57 ℃ Alarm volume ≥ 70dB (1m in front) alarm mode: audible and visual alarm, live voice prompt, mobile phone alarm push alarm linkage output Solenoid valve: 12V pulse output manipulator: 12V / 300mA output, lasting for 15 seconds and preheating time for 180 seconds Pacakge Including:  1 * detector 1 * data line 1 * manual