How does this siren alarm system protect your house?. 2, When the door sensors, PIR motion sensor, Curtain detectors or other sensors be triggered, this siren will sound to deter thieves. A: No, this siren work as an alarm system, it can work with wireless sensors to protect your house.
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Super loud alarm of 105dB, scare thief away. -Magnetic sensor, door and window motion detector. Alarm size: 85 40 15mm /3.3 1.6 0.6in. Magnet weight: 7g / 0.2oz. Magnet size: 46 10 11mm / 1.8 0.4 0.4in.
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95dB Entry Door Alert Wireless Door and Window Sensor. Sensor type: alarm. Super loud 90 dB alarm. 10 PCS x Door Magnetic Sensor. Alarm type: sound. Easily mounted by adhesive. Type to window or door.
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10 x MC-38 Wired Door Window Sensor Magnetic Switch. ★Boats & Maintenance.
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eBay
There are two types of reed switches: "normally open" reed switches and "normally closed" reed switches. A normally-closed reed switch is closed when it is not near a magnet; as a magnet is brought close to it, a normally-closed switch will open.
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eBay
The Wuloo Motion Sensor with Wireless Motion Alert is a convenient and affordable safety/security system. The driveway alarm is one of our latest products. It serves a wide variety of uses and has multiple features, including all of the following.
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