Wireless Gas Detector LPG, natural gas , coal gas sensor Wireless Gas Detector GD-205WSuitable for: LPG, natural gas , coal gasWall-mountedRF distance: 150m ( line of sight )Radio frequency: 433.92MHz±75KHz OpStandby current: ≤80mAPower adaptor: DC 12VOperating temperature: -10°C ~ +50°C Wireless Gas Detector