Wireless Alarm Controller Deta 1190 Connects with Combined Optical Smoke and Heat Alarm (1171) for remote testing and silencing Battery powered with 2 x AA batteries Includes wall mounted cradle 5 Year Warranty The Deta 1190 Wireless Alarm Controller lets you remotely test and silence your Combined Optical Smoke and Heat Alarm (1171) with ease. Powered by 2 AA batteries and supplied with a convenient wall-mounted cradle, it offers simple installation and reliable operation. Backed by a 5-year guarantee, this controller enhances your home safety by providing effortless control, especially in hard-to-reach areas. . IP Rating IP20 Transmission Distance 35m Battery Type 2 x 1.5V AA (included) Linkable Up to 50 units Warranty 5 Years Dimensions 90 x 90 x 24mm