New to the Dynamic range, these bite alarms really are up there with the best on the market.  They come with multifunctional settings to suit whichever way you prefer to get bite indication.
7 multicoloured LEDs
Variable latching settings
Volume control
Tone control
Vibration mode
Black snag bars included
Night light functions
Low battery warning
Rolling code function - avoiding interference from other alarms
All weather construction
100-150m range
Requires 9v batter (not included)
Can also be synced to the new NGT Dynamic receiver light (not included)