The Wirefree Alert can be used to monitor any location where you want to be notified when people (or large animals) and vehicles are present. The waterproof, wireless motion sensor detects when someone is present and then alerts the inside Base unit. The waterproof, wireless motion sensor alerts the inside, base intercom unit with a tone.
Up to four motion sensors can be used with one internal base station, They operate up to 1000 feet from the base. The Base Unit will give a single tone for the first transmitter, a double tone for the second, and so-on for a third and fourth.
The outdoor Sensor uses 4AA batteries. High quality batteries will last up to two years.
The Base Unit has a built-in relay for activating accessories, such as doorbells, buzzers, lights, or gate openers. The Relay can handle up-to 120 volts, 10 amps going through it but has no power of its own. When the base signals, the relay makes a momentary connection between the two relay contacts.
The Base unit runs on AC power but has battery backup capability using a 9 volt battery.
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