... , S-MDC-0400, S-MDC-0401) Wireless gap window/door sensor (Using in S-MDC-0210, S-MDC-0211, ... S-MDC-0401)1) It is used to probe whether door, window and drawer is illegally open or not. 2) ... it probes that the moving distance (opening door) is more than 30mm, the indicator light (red) will turn on, and ... customer's artwork and logo MDC-0301 Wireless gap window/door sensor (Using in S-MDC-0210, S-MDC-0211 ...