Sensit track it III gas leak detector , EX/TCplus LEL/%Vol/O2

Sensit track it III gas leak detector , EX/TCplus LEL/%Vol/O2 with ppm option , Alkaline battery up to 25 Hr operations ,Standard kit includes Padded Carrying Pouch, 4 “C size ” Batteries, Neck Strap, External Water/Dirt Filter ,Instruction Manual, Probe With PPM Option PN: 870-00003 and Leak Search Option PN:870-00041