Extech RF41 Portable Battery Coolant/Glycol Refractometer with ATC (??C) measures the freezing point of coolants and concentration of Ethylene/Propylene Glycol. This Portable Battery Coolant/Glycol Refractometer features Automatic Temperature Compensation (ATC).
Proposition 65 Warning for California Residents: This product can expose you to chemicals including Benzene, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to 
