Оптический дымовой извещатель Eura-tech EL Home SD-11B8 9V

Photoelectric sensor that detects smoke. It is used to alert of danger. Alarm is provided by acoustic and optical alarm. Designed for ceiling mounting. It is powered by 9 V DC voltage (1 x 6LR61 9V). It has a test button to check its proper operation. No cable connection required.