SH-WD Wired Rolling Metal Door Shutter Sensor EM Lock with LED 600 Lbs 4G(optional) Access Control Yes Battery

4G(optional) Access Control Yes Battery Built in Battery Backup Screen Size 3

and the personnel inside can not open the door

"CCL 108 SG" appears to be a specific product or model designation within a particular industry or domain

Working Temperature: 0°C-50°C

SH-WD Wired Rolling Metal Door Shutter Sensor EM Lock with LED 600 Lbs 4G(optional) Access Control Yes BatteryBrand: NAVKAR SYSTEMS Color: Silver Model No: SH WD Package Includes: 1 x Wired Rolling Metal Door Shutter Sensor (SH WD) SH WD Wired Rolling Metal Door Shutter Sensor is a reliable security solution designed to protect commercial spaces with rolling metal doors or shutters. With its robust construction and wired connectivity, this sensor ensures the utmost security. It detects the opening or closing of metal doors and shutters, triggering an alarm if