12V Wired Ding Doorbell 4Wire Doorbell for Access Control

12v external wired doorbell. Special Dingdong ring for access control. No battery required 12V four wire doorbell retardant, high temperature resistant, oxidation resistant, corrosion resistant, environment- and recyclable
The doorbell is crisp and pleasant with chip, good effect and stable use. After the product is connected to the access control system, press the doorbell button of the access control machine to make a pleasant ding sound. Power supply voltage: 12 (V)
color:White
Material:ABS Package Contents:
1 x 12V Wired Ding Doorbell Only the above package content, other products are not included.
Note: Light reflection and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.