Kit MK120 IR light barrier

Applications : announce visitors, warn against burglars, set boundaries, science projects,…

audible (85dB) and visible (LED) alert
range: 1 to 4m (3.3ft to 13ft)
on/off switch provided
power supply: transmitter – 9VDC / 50mA max., receiver – 9VDC / 20mA max.
9V battery holder and adapter jack included
dimensions: transmitter – 55 x 40mm (2.2 x 1.6) receiver – 100 x 50mm (3.9 x 2.0)
not recommended for outdoor use