Specification AgeRangeDescription : Newborn Brand : Sinotech BulletPoint1 : Measuring Range:Ethylene Glycol:-50°F-32°F BulletPoint2 : Propylene Glycol:-60°F-32°F,Battery Fluids:1.15-1.30sg BulletPoint3 : Resolution Factor: 10°F, 10°F, 0.01sg BulletPoint4 : (ATC) Temperature Compensation Range: 10°C--30°C BulletPoint5 : RHAN-300ATC is an Upgraded Version of RHA-300ATC With an additional Features of Built-in Calibration Knob Color : Black ExternallyAssignedProductIdentifier1 : 0799804050495 ExternallyAssignedProductIdentifier2 : 799804050495 ItemName : Sinotech Hand Held Antifreeze Refractometer Rhan-300atc 6pcs Per Lot ItemPackageQuantity : 6 ItemTypeKeyword : science-lab-refractometers Manufacturer : Sinotech ManufacturerMinimumAge : 2 Material : Plastic ModelNumber : RHAN-300ATC OperationMode : Automatic PartNumber : RHAN-300ATC PowerSourceType : battery powered ProductDescription : RHAN-300ATC is an upgraded version of RHA-300ATC with an additional features of BUILT-IN CALIBRATION KNOB, has much LIGHTER WEIGHT, and LONGER Product's Instroduction: The models have only one unit system: °F. With the indication of the temperature we may know the freezing point of either ethylene glycol or propylene glycol based cooling systems. It can be used for checking the strength of electrolyte solution batteries. The RHAN-300ATC has Automatic Temperature Compensation System. Guarantee: Offers 2 YEARS WARRANTY Measuring Range: Ethylene Glycol:-50°F-32°F Propylene Glycol:-60°F-32°F Battery Fluids:1.15-1.30sg Resolution Factor: 10°F, 10°F, 0.01sg (ATC) Temperature Compensation Range: 10°C--30°C