Temperature unit: °C or °F(Plug/unplug the jumper cap to switch the unit    Temperature Range: From -50°C to 110°C / -58°F - 230°F (°C/°F switch)    Accuracy: ±0.5°C    Sensor type: NTC (10K/3435)    Water-proof sensor probe    Working Voltage: DC 5-25V    Working Current: Max. 20mA    With a 4-pin connector for PC use    Red line connect the positive, black line connect the cathode.(With