... and MultiPulseTM Technology2.40-hour battery (rechargeable), back-lit 4 lines letters display all integrated into a rugged, watertight enclosure.3 ... 8.Optional Heat flow BTU function, two temperature transmitters 4-20ma input for inlet and outlet temperature display and heat ... crude oil, lubricating oil, diesel oil, fuel oil, etc.4.Chemicals, including alcohol, acids, etc.5.Solvents6.Beverage and food ...