Antifreeze/battery Refractometer Rha-200atc with Automatic Temperature Compensation by Grand Index Ethylene Glycol: -60C-0C(0-66.6%); Propylene Glycol: -50C-0C(0-62.4%) Battery Fluids: 1.100-1.400sg Resolution Factor:Ethylene Glycol: 5C ;Propylene Glycol: 5C ;Battery Fluids: 0.01sg Included:Pipette * Operations manual * Mini-screw driver*soft protective carrying