Hangzhou Grow Technology Co., Ltd
Address: Room 310, Building B, Building 1, No. 279, Shiqiao Road, Xiacheng District, Hangzhou
Tel：86 571 86688123
Fax：86 571 89922886
Copyright © Hangzhou Grow Technology Co., Ltd
New Product: GROW K220 Fingerprint Control Board With Two Relays Admin/User Function
K220 fingerprint control board have 2 relays and have admin/user function. It can connect with R502,R502-A,R502-AW,R503 fingerprint module.