Tel: +86-755-28367459
E-mail: overseas@ttbvs.com
Wired door contact/Magne...
door contact/Magnetic co...
Water leak detection/Wat...
Glass Break/break glass ...
Emergency Button/emergen...
2020© TTB Vision Co.,Ltd. All Rights Reserved.
Tel: +86-755-2836-7459 Fax: +86-755-2836-7459 Email: overseas@ttbvs.com P.C.: 518000