Ring 4SD1SZ-0EU0 2nd Gen Contact Sensor for Doors/Windows App-Controlled

The Ring Alarm Contact Sensor (2nd Gen) is a wireless alarm system extension designed by Ring. It features easy installation on doors or windows for enhanced home security. This device is typically used to alert users of unauthorised entry, making it ideal for monitoring access points in residential properties.

Type	Wireless alarm system extension
Power Source	battery-powered
App compatibility	Yes
Component	Door/window sensor
Depth	14mm
Dimensions	(W x H x D) 53 x 40 x 14 mm
Frequency	2.4 GHz
Height	40mm
Hub	Required
Width	53mm