Heine Rechargeable Handle This rechargeable diagnostic handle from Heine offers ideal power solutions for hand-held diagnostic instruments. With a NiMH rechargeable battery and high quality metal construction, it provides years of reliable service. Size is 145mm x 30mm diameter. Features Rheostat brightness control with power level indicator Knurled handle for a hygienic, non-slip grip Compatible with the Heine NT-300 SmartCharger and most other charging systems Twist-lock connector is compatible with other manufacturer’s instruments