The Steve Neville Remote Alarms MK3 are compact, flat-backed bite alarms designed to work either independently or as part of a remote system. Each alarm has a built-in radio transmitter with a range of up to 500m, though this is subject to environmental and local electrical interference. In dual operating mode, the alarm can be used on its own, with bite indication through the sounder, or paired with a remote receiver for added flexibility. The high-sensitivity 4 magnet roller wheel helps detect delicate bites, while the blue latching LED and red run LED provide clear visual signals. Low battery drain gives an extended operating time of approximately one season's use, and the unit is fully weatherproof. It is powered by one LRV08 battery, which is supplied. - Compatible with Steve Neville Remote Receiver Box (not included) - Compact, flat back design - Built in radio transmitter with excellent range of up to 500m - Range subject to environmental and local electrical interference - Dual operating mode - Can be used independently, with bite indication through the alarm sounder - Can be used with a remote receiver - Low battery drain, extended operating time (approx. 1 seasons use) - High sensitivity, 4 magnet roller wheel - Blue latching LED and Red run LED - Powered by 1 x LRV08 battery (supplied) - 100% Weatherproof - 3 Volume settings