TF Gear Soundwave waterproof bite alarms

TF Gear’s new Soundwave waterproof alarms are made from a toughened ABS polymer plastic.

You get unfailingly reliable roller-wheel systems, tone, volume and sensitivity controls, and a universal latching LED light in a choice of seven available colours.

Power-out sockets allow them to be used with most recognised illuminated indicator systems.

Price: £149.99 the set