BEAM DETECTOR

Generally, a beam detector is a type of detector that detects both smoke and objects and is used in fire alarm systems. It raises the alarm when it detects smoke/objects, thus preventing unfortunate fire accidents. You can find two types of beam detectors in the market, reflector type and receiver-transmitter type. 

The receiver-transmitter consists of the receiver and a transmitter where the IR light beams will be transmitted from the transmitter to the receiver continuously. If smoke blocks the IR light beams and prevents it from reaching the receiver, the alarm sound starts to give alerts. The distance between the transmitter and receiver can be around 5-100 meters. 

In the reflector type, you will find a reflector and a unit. Usually, the IR beams sent from the receiver-transmitter unit are reflected in between the reflector and the unit. If there are more than three reflectors, the distance between the reflector and the unit can vary from 5 to 50 meters, whereas if there is only one reflector, then the distance between the two is 5-35 meters.