- It has magnetic cupule on the back
- it can also on the mital objects directly
- Small size convenient to carry
- The annunciator can be put on the alerted place
- The sound is sonorous
- Alert Time:25 seconds
-Install 1 piece of 9V battery in the alarm
-Set the annunciator power switch to "ON"
-Thread light will be on
-ET will be put out in 15 seconds
-When the annunciator is slight shaken or knocked on,the sound an be heared and lasts 25 seconds
- Package Weight: 65 g
- Package Size: 10.5*6*3 cm
- 1 x Vibration Alarm
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