smoke detector with relay output

Wanlin Fire - China source manufacturer of Fire Safety Market Growth. Professional smoke alarm OEM and ODM services: private label, custom logo, packaging, multilingual manuals, EN 14604 / UL 217 certified models, 10-year battery and smart options. ISO 9001 factory. Contact +8613261677119.

gas detector with SMS alerts direct from Wanlin Fire Protection — 12-year factory experience, WL-GA200 4G smart fire protection product certified CE/FCC/RoHS/REACH/ISO9001. Key specs: 4G LTE + Semiconductor Gas Sensor (NG/LPG Dual), 4G LTE + SMS + Push + Phone Call + App + Solenoid Valve Control. No monthly fees, 4G cellular backup, cloud platform, DIY inst···