1.trough-like optocoupler use sensor

2.tank width 5mm .

3.have export status indicator , output level lamp expirate , output low level lamp bright .

4.have sunling , output low level; none sunling , output high level .

5.comparator output , signal clean , waveform good , riving capacity strong , more than 15ma.

6.working voltage 3.3v-5v

7.output : form digital switch output ( 0 and 1 )

8.with fitted bolt hole , convenient installation