4-in-1 DEF Antifreeze Coolant Refractometer for Automobile Antifreeze System, Diesel Exhaust Fluid, Battery Acid and Windshield Washer Fluid sold2025 7-7 inches smartphone or small

7-7 inches smartphone or small tablet

It is rechargeable and no batteries are required

km/h Degree of Protection: IP67 Backlight: TFT Screen Dimensions: 85mm diameter (3-3/8") 55mm Depth (2-3/4") Package Included: 1GPS Speedometer 1GPS Antenna 1Multi-plug socket 1Instruction

time lapse exposure (support using interval timer and long exposure simultaneously) and repeat timer schedule interval time

4-in-1 DEF Antifreeze Coolant Refractometer for Automobile Antifreeze System, Diesel Exhaust Fluid, Battery Acid and Windshield Washer Fluid sold2025 7-7 inches smartphone or small4 in 1 DEF Antifreeze Coolant Refractometer for Automobile Antifreeze System, Diesel Exhaust Fluid, Battery Acid and Windshield Washer Fluid Product Features Function 1: Measuring freezing point of automobile antifreeze based on ethylene glycol or propylene glycol. Measuring Range: 50 to 0 C. Function 2: Measuring specific gravity of battery acid and provide a quick reference of battery charge condition. Measuring Range: 1. 10 to 1. 40 kg l Function