smoke detector with software version reporting

Wanlin Fire Equipment by Wanlin - China's leading source manufacturer of pressure transmitter with -20°C to 80°C operating temperature. Factory-direct CO alarms and smart fire safety devices for the European market - EN 50291, EN 14604, EN 54 series, CE/UKCA certified, OEM/ODM, low MOQ, fast delivery. Contact +8613261677119.