XH-B305 digital thermometer supports DC 12V, Hydropower Engineering uses four digital LED displays -60-125 Power: DC 12 Measuring range: -60-125 Accuracy: 0.1 degrees Dimensions: 80 * 43 * 25mm embedded Hole: 76 * 39 Sensor: B3950-10K Speed type 1 meter Display color: red, green, purple display: Application: Hydropower Engineering