Product Description<br>Features:<br>It outputs low level when there is not block in the groove  otherwise it output high level. The output end can connect to power relay to form normal limit switch function  or connects to active buzzer module to form alarm.<br>Specification:<br>Groove type optocoupler sensor  groove width: 10mm; With output state indicator  it lights on when output high level and off when output low level. Working voltage: 3.3~5V  current!#!gt!*!15mA  0/1 output; Comparator: LM393<br>Application:<br>Widely use for test motor speed  work piece counting  etc.<br>English Manual/Spec: Provides cable connecting manual<br>Packing List: 1 x Module<br>Dimensions: 1.06 in x 0.75 in x 0.71 in (2.7 cm x 1.9 cm x 1.8 cm)<br><br><img src="//gdetail.image-gmkt.com/030/717423496/2016/4/efead0ca-3b65-4a4c-9329-c400df0a2d4c.jpg"  width="942" height="942" onerror="this.src='http://gdetail.image-gmkt.com/030/717423496/2016/4/efead0ca-3b65-4a4c-9329-c400df0a2d4c.jpg'; $(this).attr('onerror'，'');" ><br><img src="//gdetail.image-gmkt.com/030/717423496/2016/4/0bd545d6-e4e5-4e6f-a2e0-6cc69ba16461.jpg"  width="940" height="940" onerror="this.src='http://gdetail.image-gmkt.com/030/717423496/2016/4/0bd545d6-e4e5-4e6f-a2e0-6cc69ba16461.jpg'; $(this).attr('onerror'，'');" ><br><br><img src="//gdetail.image-gmkt.com/030/717423496/2016/4/b392021b-e4af-4eee-9ec1-5363977bb97c.jpg"  width="940" height="940" onerror="this.src='http://gdetail.image-gmkt.com/030/717423496/2016/4/b392021b-e4af-4eee-9ec1-5363977bb97c.jpg'; $(this).attr('onerror'，'');" ><br><img src="//gdetail.image-gmkt.com/030/717423496/2016/4/524f0706-cbf1-4788-9d26-6212a2b5ca9d.jpg"  width="940" height="940" onerror="this.src='http://gdetail.image-gmkt.com/030/717423496/2016/4/524f0706-cbf1-4788-9d26-6212a2b5ca9d.jpg'; $(this).attr('onerror'，'');" ><br><img src="//gdetail.image-gmkt.com/030/717423496/2016/4/b0badd86-495a-47ef-921b-030126008c4c.jpg"  width="940" height="940" onerror="this.src='http://gdetail.image-gmkt.com/030/717423496/2016/4/b0badd86-495a-47ef-921b-030126008c4c.jpg'; $(this).attr('onerror'，'');" ><br><br><br><br>Packaging Details<br>Unit Type: lot (5 pieces/lot) Package Weight: 0.010kg (0.02lb.) Package Size: 10cm x 10cm x 2cm (3.94in x 3.94in x 0.79in)