Smoke and Heat Compatiable Detector

Description:

- Photoelectric sensor
- Pwoer supply can use two type of 9V battery and DC 12V together
- If connected power DC12V, the power 9V battery will stop working
- If DC12V off power, the 9V bettery as back battery keep to work continuously
- Alarm temperature for heat sensor: adjustable(Max.58degrees)
- Red LED indicate alarm
- Low battery alarm
- Unique "battery Missing" lockout
- High sensitivity