Specification:High detectivity and speed of detection that can be widely used in security inspectionand theft protection places.Functions:1. High sensitivity with audible and visual alarm.2. Only one button switch, easy to be operated.3. Thimbleful electric current consumption: alert 0mA, working less than 1mA, alarm6.5mA4. Rapid detection: reset and finding a new target after last alarm needs only 0.1second.5. Low voltage indication: continuous checkout of the power and indicate by the redLED light when voltage is low.Technical parameters:1. Working temperature: -20-65 degrees2. Working humidity: 98%3. Power switch: push-button switch4. Alarm indicator: speaker and red or green light LED5. Detection speed: 0.1 second per time6. Battery: 1 x 9v battery producing area:China