The TPI 395 Handheld Refractometer is a precision optical instrument designed for accurately measuring glycol concentration, antifreeze strength, and battery electrolyte levels in heating, cooling, and automotive systems. Engineered for HVAC technicians, plumbers, and mechanics, this refractometer delivers quick, reliable readings with minimal sample volume—making it an essential tool for system maintenance and performance diagnostics.

With a durable, portable design and easy-to-read scale, the TPI 395 ensures accurate field testing whether you're assessing boiler inhibitor strength, chiller glycol levels, or vehicle coolant protection.

Key Features:

• High-accuracy handheld refractometer

• Measures glycol concentration, antifreeze strength & coolant protection

• Suitable for ethylene glycol and propylene glycol solutions

• Fast, reliable readings with minimal sample size

• Clear internal scale for quick interpretation

• Durable, portable design for field and workshop use

• Ideal for HVAC, plumbing, and automotive applications

Suitable For

• Checking central heating inhibitor/glycol strength

• Chiller & refrigeration system glycol testing

• Automotive coolant and antifreeze analysis

• Battery electrolyte measurement

• HVAC and plumbing system maintenance

• Workshop, service van & on-site diagnostics