Extech RF41 Battery Coolant & Glycol Refractometer with ATC - Measures -50 °C to 0 °C Freeze Point & Battery Acid Specific Gravity, Handheld Optical Refractometer Kit

Product Description Extech RF41 Portable Battery Coolant/Glycol Refractometer with Automatic Temperature Compensation (°C) From the Manufacturer Refractometer measures measures the Propylene/Ethylene Glycol freezing point from -50 to 0°C and the Specific Gravity of battery acid from 1.11 to 1.30. Compact and easy to operate. Requires only 2 or 3 drops of solution and provides accurate and repeatable measurements on an easy to read scale. Prism and lens with a simple focus adjustment and Automatic Temperature Compensation from 10 to 30°C. Comes complete with case, calibration screwdriver, plastic pipette and calibration solution.

• Dual-Function Measurement - Accurately reads the freeze point of propylene/ethylene glycol (-50 °C to 0 °C) and battery acid specific gravity (1.11 - 1.30) for versatile coolant and battery testing.
• Automatic Temperature Compensation (ATC) - Ensures consistent, reliable readings across varying ambient temps without manual adjustment.
• High Accuracy & Minimal Sample Needed - Requires just 2-3 drops for fast, precise measurement; features focus-adjustable prism and lens for easy reading.
• Portable & Durable Kit - Compact handheld body (~6.3 × 1.6 × 1.2 in, ~180-200 g) with eyepiece, carrying case, calibration screwdriver, pipette, and calibration solution included.
• Wide Industry Applications - Ideal for automotive and HVAC mechanics, maintenance techs, and lab professionals—streamlines glycol freeze point checks and battery health assessments. (Derived from primary features and use logic)