The ultra reliable Gardner ATTa Audible Bite Alarms features an inbuilt speaker that allows the alarm to be used with or without an ATT receiver on the bank.The alarm is water protected(IP67) and powered from a single 476A 6 volt battery. The ATTa is always on and ready for action, apart from when it is placed in its designated hard case (supplied). Bite detection is achieved by the magnet roller wheel being turned by line movement. The ATTa wheel detection system is “intelligent”, it understands where the wheel is and what the last activation was. This intelligent technology means the ATTa will not suffer from false activations.ATTa heads are available in the following colours: White, Red, Green, Purple and Blue.Sensitivity can easily be adjusted by fitting alternative roller wheels (click here to see roller wheels – https://gardnertackle.co.uk/product/atts-magnet-roller-wheels/). These are available in a wide range of colours and in 2, 4 or 6 magnet roller wheels:The 2 magnet wheel the receiver beeps once per 1cm of line movement. The 4 magnet wheel the receiver beeps once per 0.5cm of line movement. The 6 magnet wheel is ultra-sensitive and beeps once per 0.33cm of line movement
