ATTX 4 Magnet Roller Wheels Green

Increase the sensitivity of your ATTs and ATTsi Alarms with these interchangeable Magnet Roller Wheels, colour matched to all the LED colours.

With the 2 Magnet Wheel the Receiver beeps once per 1 cm of line movement. With the 4 Magnet Wheel the Receiver beeps once per 0.5cm of line movement, the 6 Magnet wheel offers even more sensitivity than that.