LoRa gas alarm transmission distance

household gas alarm after-sales direct from Wanlin Fire Protection — 12-year factory experience, WL-GA208 fully certified CE/EN54/FCC/RoHS. Key specs: 4G + WiFi + Zigbee + Bluetooth 5.0, Unified management of 50+ gas safety devices with cloud platform and multi-channel alerts. MOQ 100 sets, 20-25 working days, OEM/ODM custom branding available. Serving 60+ ···

wireless gas alarm low power direct from Wanlin Fire Protection — 12-year factory experience, WL-GA200 fully certified CE/EN54/FCC/RoHS. Key specs: 4G LTE Cat.1