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Active Solar Triple-Beam Gateway Alarm
A 60m active solar-powered triple beamset combined with a multi-channel receiver / buzzer. The transmitting range from the beam to the receiver is approx 400m. The triple-beam provides very high immunity to false alarming from foliage, birds etc. The two beam units (one each side of the driveway or track) have a built-in 30-day battery pack, which is kept continually charged by a solar panel on the front of each unit. Even in continual darkness, the units will function for several weeks, making them ideal for the unpredictable British climate.
If a beam unit is to be located in permanent shade, a remote solar panel, a bettery or a mains supply can be connect to a socket on the back of each unit to provide maintenance-free operation.
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