* Dual?Photoelectric?Beam Detector, difference distance as option

* Twin?synchronized?pulsed?beams?designed?for?greater?stability

* Design?Durability

* Frost?and?dew?protection

* High?grade?a spherical?lens

* Perfect?beam?blocking?stability

* Adjustable?beam?interruption?period

* Quick?optical?and?voltage?alignment?to?speed?up?positioning

* A.G.C?(Automatic?Gain?Control)?Circuit

* Gross weight: 1.3kg(both transmitter and receiver