Security Alarm Sensor II Security Alarm Buzzer TMC Door Sensor Set of 3

Although the manufacturers vary, these are sensors that have been in long-term storage.
Since I have no opportunity to use them, I am selling them as a set of three.
Easy-to-install security alarm sensor
■ This buzzer detects both glass breakage and opening/closing to sound an alarm.
■ This slim sensor detects both glass breakage and window opening/closing to sound an alarm.
■ With a thickness of 9mm, it fits into the gap of sliding windows.
■ The warning sticker is visible from the outside of the main unit's mounting surface, providing a deterrent effect.
* To improve security effectiveness, the alarm sound will last for approximately 25 seconds once activated.

[Main Unit Size] Thickness 9mm x Height 100mm x Width 50mm
[Weight] Approx. 40g (main unit only)
[Sound Pressure] Approx. 90dB/m
[Operating Temperature Range] -10 to 40℃
[Power Source] 1 CR2032 lithium battery
[Material] ABS resin
The included battery is for trial use.

TMC Door Sensor
Loud Alarm: When intrusion is detected, a powerful 115-decibel warning sound will blare. Light Warning: Red lights flash simultaneously with the sound, visually alerting to abnormalities. Easy Installation: Simply peel off the double-sided tape on the back and stick it on for tool-free installation. Applicable Locations: Can be attached to various opening parts such as entrance doors, sliding doors, and windows.

The security alarm buzzer requires 3 LR44 button batteries.