1. Model: AHC-1 2. Electrochemistry type sensor(Japan) 3. Gas detected: carbon monoxide 4. Size: 100mm*35mm 5. Working voltage: AC220/AC110, 12VDC-20VDC 6. Additional function: can work with solenoid valve or manipulator or exhaust fan 7. Networking: wired networking(NO, NC) 8. Wireless networking mode: 315MHZ/433MHZ (2262 OR 1527)