Long range wireless door entry alert utdcdcr 2500 the door sensor transmitter has a magnetic door contact so that when the entry door is opened by a visitor customer it sends a wireless entry alert chime to the dcr 2500 receiver that is power by an ac adapter and can be plugged in up to 1500 feet away depending on walls building materials etc.
Wireless door beam sensor.
The entry alert or chime occurs when someone breaks the invisible beam.
Entry door window alarm with chime.
4 1 out of 5 stars 220.
Invisible beam entry alert units a door entry alarm having an invisible beam is a narrowly focused infrared beam between two sensor devices one producing the beam and one reflecting or receiving the unbroken infra red beam.
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Htzsafe solar wireless outdoor photoelectric 3 beam sensor waterproof ip66 wireless transmission range up to 1 2 mile infrared detection range up to 300 feet 4 7 out of 5 stars 17 99 99 99.
When a person walks through the beam the circuit is interrupted and this causes the alarm to sound an audible warning.
Ideal for use in windows and doors around home including garages cabinets sheds attics side doors freezers etc.
Wireless receivers transmitters accessories.
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In stock on september 27 2020.
Door chime wireless door alarm contact sensor doobell with 500ft range 52 chimes adjustable volume mute mode led indicators 1 plug in receiver 1 door sensor for office home store 4 4 out of 5 stars 1 152.
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The system consists of a send receive unit which transmits an ir beam across the doorway onto a prismatic reflector mounted on the opposite side.
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Door chime wireless business door motion sensor detector smart visitor doorbell home security driveway alarm with 1 plug in receiver and 1 pir detector weatherproof white 3 8 out of 5 stars 248 22 99 22.
The beam is reflected back to the receiver to complete the circuit.
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