Solo 461-001 Cordless Heat Detector Tester is a battery-powered heat detector tester that connects to a Solo access pole allowing a maximum reach of 9 meters.  The Solo 461 uses patented technology to direct a focussed beam of heat directly towards the sensor.It consists of:1 X SOLO 460 HEAD UNIT1 X SOLO 727 FAST CHARGER2 X SOLO 770 BATTERY BATON