1)Apply advanced digital signal processing technology
2)Adopt SMD technology, with good ability for anti- radio frequency
3)Work stably, with good ability for anti-achromatic light disturbances
4)Manually auto power-saving mode, Power-saving, Micro-power consumption, the service life of the battery extends
5)Tamper alarm function, send alarm signals immediately once the shell is open
6)Two 1.5V AA batteries, super capacity, long service life
Audited Supplier 
){kind=link}