Product description: 
 
* Smooth Stainles stell button for push and release functions to unlock door or act as an actuator.
* Completely water proof frame with polished faceplate to match any house styles.
* 12V DC with slim panel of 1.8mm thickness.
 
Technical Specifications:
 
*Dimensions: 86x86(mm)
*Panel: 1.8mm Thick, 304 Stainless Steel (Wire Drawing)
*Input: 12VDC 
*Contact Rating: 3A/125-250VAC
*Output Contact: 4wires;  (NO/COM/NC/COM)
*Suitable for Door: Hollow Door
*Operating temp: -20℃～+55℃(14-131F)
*Suitable Humidity: 0-95% (relative humidity)