Extech RF41 Portable Battery Coolant/Glycol Refractometer with ATC (°C)
Portable Battery Coolant/Glycol Refractometer with ATC (°C)

The Extech RF41 monitors the freezing points of propylene and ethylene glycol from -50°C to 0°C. It also monitors the specific gravity of battery acid (1.11 to 1.30) and gives a quick reference for battery charge status. For quick and precise readings, only a few drops of solution are required. The automatic temperature correction yields reproducible results on an easy-to-read scale. Prism and lens have a simple focus adjustment. The set includes a carrying case and a calibrating screwdriver.

Specifications

Battery Acid Specific Gravity 1.15 to 1.30
Battery Acid Specific Gravity Max Resolution 0.01
Freezing Point (Ethylene Glycol) -50 to 0°C (10°C to 30°C ATC)
Freezing Point (Ethylene Glycol) Basic Accuracy ±2%
Freezing Point (Ethylene Glycol) Max Resolution 1°C
Freezing Point (Propylene Glycol) -50 to 0°C (10°C to 30°C ATC)
Freezing Point (Propylene Glycol) Basic Accuracy ±2%
Freezing Point (Propylene Glycol) Max Resolution 1°C
Dimensions 6.5 × 1.5 × 1.5" (165 × 38 × 38mm)
Warranty 2 years
Weight 7oz (200g)