Product Description: 
 Detection of gas: natural gas, liquefied petroleum gas, city gas (H2) 
 Size: 86mm * 86mm * 60mm 
 Operating voltage: 220VAC or 110VAC, 12VDC-20VDC 
 Unique: 
 (1) Add automatic sensor drift compensation, the real against the false positives and false negative 
 (2) The failure prompted the alarm function for user to replace and repair, to prevent the non-reporting 
 (3) MCU overall control, the working temperature of -10 degrees to 60 degrees 
 (4) seamless: seamless fitting with the housing, does not destroy the United States and any point 
 (5) Easy installation: same as with ordinary wall socket switch installed can be replaced 
 Networking: wired networking functions (NO, NC)