| Features: - Moving objects or person(s) are detected through changes in reflected light, sounding a 2 note chime - Simplified Mounting Description: - On/Off switch and high/low volume adjustment - Durable white molded plastic case Electrical characteristics: - Battery operated with (2) "C" cells, not included Dimensions: 3-1/16" x 4-3/8" x 2-3/8" |