ITEM NAME:Red DC12V Digital Thermometer With Temp Probe -50~110C Temperature Detector OZ Features & Specifications Supply voltage: DC 12V (DC4.5-15V) Measuring range: -50 ~ 110C Measurement accuracy: 0.1 Display: three 0.56-inch LED digital tube Display color: Red Refresh rate: 200ms/time Power Consumption: 18MA Temperature probe: B3950-10K, waterproof sensor ,wire length 100mm Working environment: -40~65C Dimensions: 48x 29x 23mm,L*W*H (not including mounting ears) Cutting size: 45.5 x 26mm Reverse protection: Have Waterproof: None Fine tuning: None Packaging include Digital Temperature meter x 1