LaserSense ZLS1 early smoke detection system (50m). Equipped with a laser beam analysis camera with adjustable sensitivity from 0.003% to 25% osc / m. It incorporates 1 ABS / PVC sampling pipe inlet forming a detection zone. Dry contact outputs for general alarm and general fault with option of 5 dry contact outputs including option card ZLSS-RL4. Manual / automatic sensitivity adjustment and dirt compensation. Sampling points by direct drilling on the pipe or by capillary tube. Maximum pipe length of 50 meters. Requires 1 FHSD8590 adapter for pipe inlet and 1 additional if return pipe is used. It incorporates RS232 port for programming and RS485 port for connection to the SenseNet network. Includes fixing base. 24V power supply. Consumption: 250 mA. Dimensions: 145 x 220 x 90 mm. CPD certificate according to EN54-20 standard.