Sell IR Infrared Security Beam Intruder Alarm Motion Sensor best price

Keep the two units (RX & TX) in alignment to create an infrared beam. Place the RX & TX by an entrance, doorway, or any place you want to monitor. Based on the distance you need, turn the distance switch on TX to H (20M) or L (4M) Select the sound modes by setting the switch (RX) to --ALARM --CHIME --CHIMES (continuous chimes) •Select the sound volume to LOW, MIDDLE or HIGH on RX unit. •After setting all the above, you can turn on the RX & TX. Now, the LED on both units will be on showing the infrared beam is set. •If the infrared beam is interrupted or blocked, the RX will sound loudly. If RX is triggered under the sound mode of CHIMES or ALARM, it will ring continuously and the RX must be turned OFF to stop the sounds. In CHIME mode, the RX sounds only once. Feature： Device includes a Receiver (RX) and Transmitter (TX) High/Low distance settings available High/Medium/Low audible sound level settings available Three different sound modes Low battery indication Capable of high pitch sounds Wide angle operation design Package include： 1 x Infrared Beam Transmitter Unit 1 x Infrared Beam Receiver and Alarm Unit 1 x Instruction Manual