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Incoming, 4-6 days
The GD-04A back-up module is a back-up battery embedded in a specially-enlarged cover. The module provides David with the ability to work approx. 12 to 24 hours continually without an external power supply. The battery is auto-charged during normal operation.
GD-04K GSM Remote Control Unit - 4 Inputs, 2 Relays£174.00
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