Wholesale wired door chime/wired doorbell

   Wholesale wired door chime/wired doorbell     Here is a high quality electronic door bell can connect with access control keypad which has door bell button, sound is ringing and the volume is high, power on by access controller, no need additional battery, also you can connect extension cable and installed at any place you like.       wired door chime  main feature door bell desigh for door access control system Power: DC12V, no need battery. doorbell  Material :Fireproof ABS material. doorbell  Color :White Dingdong sounds Size: 87 x 62 x 23 mm Weight: 0.05KG     wired door chime specification   4 wires connection   Red: +12VDC Black :GND Door Bell Button:Yellow Door Bell Button :Green When Yellow and Green short circuit, Doorbell will sound Ding Dong.           Door Entry Minder Access Control Electric Lock System.       -OEM and ODM service available. -2 years warranty gurantee; free maintenance to all defective items within warranty period
-Provide technical support.
-Fast delivery: 
  within 3 days for sample order after payment is collected
  7-15 days of lead time for bulk order after payment
-Large discount to big order or sole agent       Shanghai Gengda Electronic Technology Co., Ltd. is founded in 2009.We are a private enterprise professionally engaged in security system products in wordwide.Research,production,market and service are integrated one unit.Our categories are tripod turnstile,flap turnstile,swing turnstile,access control system,smart card,electronic lock,control board,power box,road barrier, Anti-static tester and all accessories.What a surprise,we are searching new security field actively. By modern operation and management mode,efficient and scientific product engineering method and quality administration system,we control strictly all links of projects,including program design and proof, project progress,and system test.Then,our products and service are in the top grade in the world.