Features 
Extended module for EZH-121C-2 
For 6 users 
Changeable name-plate design 
Super slim and Aluminum alloy case 

Specifications 
Voltage Input: +DC12V(supplied by the door phone) 
Standby Current: ≤ 50mA 
Working Current: ≤ 160mA 
S/N Ratio: >48dB 
Working Environment: -20º C~+50º C 
Humidity: 45%~85% 
Unlock Delay Time: 6 Seconds 
Dimension: 132× 115× 30mm