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Due to recent global events the UK may experience distribution disruption in the coming weeks. We are working closely with our suppliers to ensure the impact on our stock levels is minimal. Please contact us to discuss your requirements.

Kemo B045 Light Barrier 12v

Order Code:  

70-1402

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Brand: Kemo MPN: B045 EAN-13: 4024028010458
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Qty Unit Price (Ex VAT)
1+ £6.46

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23 at factory, lead time 9 days
2 in Stock, despatched same dayAdditional quantity lead time 9 days

This useful project kit operates a relay switch depending on changes in the ambient light level.


  • The circuit uses an operational amplifier, used as comparator
  • Can be used as a light activated alarm sensor
  • Relay switch operates if light from a lamp, door, window, etc., is interrupted by a person's shadow
  • May also be used as twilight switch, automatically operating lamps, etc., at dusk
  • Kemo type B045
Operating voltage12V DC
Current consumption<100mA
Relay contact1 x ON max. 3 A max. 25 V
SensitivityAdjustable
Light wavelengthVisible light only
Size of board55.6 x 26.7mm

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