NashSiren R3 HeadIntelligent Sensing technology means an end to false indicationA revolutionary advancement based on change of speed in line movement, the new Siren R3 with Intelligent Sensing means an end to irritating bleeps from wind, undertow, weed, even variable current in flowing waters.The Siren R3 sounds only to alert you to fish activity in a swim. No longer will bobbin creep disturb you in the early hours when conditions change or weed builds up on the line. No longer will there be any doubt or dismissal over unexplained bleeps.The best in sensing is combined with market leading remote performance, vastly exceeding the competition. Whilst we would never encourage people to take advantage of the R3's 400 metre plus extreme range capability, the strength of radio signal becomes critical when rods are not in a clear line of sight such as in dugout swims or when surrounded by dense foliage.Whatever the nature of a swim, its surroundings or obstacles that block weaker signals the R3 will outperform all others. The Siren R3 is a revolution - connecting angler and carp like never before possible. Put simply, Intelligent Sensing alerts you on a Need to Know basis.- Patented sensitivity control utilising microchip Intelligent Sensing- Market leading remote performance - independently verified- One touch mute function- High impact casing with gasket seals to maximise waterproofing- 3/8th BSF stainless steel thread with stay-lock compression collar- High output adjustable volume and variable tone- Ultra high-vis pulsing latching LED- Integrated line guard- Pulsing fibre optic output for Nash Siren Optics indicators- Integrated removable rubberised snag ears- Blue, red, green or white LEDs- Ultra long battery life- Low life battery alert- Supplied with protective PVC case- Powered by 1 x CR 2 - 3V battery (NOT INCLUDED)Note: Range can vary considerably depending on atmospheric conditionsReceiver shown for illustrative purposes only.R3 Receiver and other additional products shown for illustrative purposes only.Options available:Blue, Red & White.