product details
1、 It can be easily assembled into a multi-circuit alarm system.
2, semiconductor plane light-emitting device, high brightness, soft color, low power consumption, parallel drive, long working life, and easy to replace the light screen.
3, microcontroller technology, optoelectronic isolation, built-in buzzer, the whole machine anti-interference ability is very strong.
4, plug-in circuit board structure, relay node output and voltage output and other output methods for easy maintenance and operation.
5. Normally open or normally closed input mode can be selected on site.
