Temperature sensor: cylindrical waterproof probe NTC 10K 3950 1% sensor total length about 1 meter Temperature measurement range: -40-120℃ (external temperature measured by NTC sensor). Time measurement range: 0-999:59:59 (hour: minute: second) Working energy consumption: 20mA (measured at DC12V) Support: Accumulated data clearing, no-load forced zeroing, voltage display fine-tuning, current display fine-tuning Percent power display: percentage power based on voltage reference (full power and low power voltage need to be manually set)<br><br>Name:9-in-1 Measuring Inst ent 10A direct measurement,no external shunt required Operating Mode:Automatic Model Number:DC Energy Power Meter Display Type:Digital display Input/output interface:10A 10A Technical Parameters: Inst ent working voltage: XH-3P red and black wire DC4-30V (do not overvoltage power supply) Introduction to wire definition: Thin red wire: positive pole of working power supply, cannot be connected to power supply above 30V Thin black wire: the negative pole of the working power supply, which shares the ground with the thick black wire. It does not need to be connected when the power supply is shared. Thin yellow wire: voltage test wire, connected to the positive pole of the test circuit power supply VH-3.96-2P thick red and black wire (thick wire total length: 165mm) current test wire, thick wire connected in parallel with shunt resistor, cannot be directly connected to the two poles of the power supply, it will cause a short circuit Voltage measurement range: DC0-100V error ±1.00V 0.1V starting Current measurement range: 0.00A-10.00A error ±0.1A 0.03A start Power measurement range: 00.00-1000W Capacity measurement range: 0-9999999mAh Energy measurement range: 0-9999999mWh Colour:Black Material:Plastic<br><br>Package Contents: 1 * multifunctional tester 1 set * measuring wire