Ceiling Motion Alarm CAT Catalogue Description 4: Very effective ceiling alarm with motion detectionEasy to operate with remote controlAutomatic alarm activation by 60° infrared beamPreprogrammed exit and entry delay Dimensions L x ?: 45 x 135 mm Batteries: 3 x LR44 / 4 x LR14/C Colour: White Detector angle: 60 ° Sound: 130 dB Voltage: 6 VDC