Solo 461 Battery Heat Detector Tester Kit contains: 1 x Solo 460 Cordless Heat Head Unit 2 x Solo 770 Battery Baton 1 x Solo 727 Fast Charger Solo 461 Cordless Heat Detector Tester (battery powered) Solo 770 Battery Baton & Solo 727 Charger Solo 332 Aerosol Smoke Dispenser Solo 330 Aerosol Smoke Dispenser Solo 365 Smoke Detector Test Kit