Features: Portable Size: The small size of this tool is very convenient for everyday use, you can easily pocket it for storage and carrying. The 2.4-inch backlit display can clearly display data for your convenience data reading. With the function of real-time curve display, the curve can display the change trend of the input or output signal. Wide Applications: This tool can be widely used for PLC and DCS system debugging, valves positioner adjustment, inverter detection, etc. With a history viewing function, you can view past data at any time. Powered by built-in lithium battery, the remaining power is displayed on the screen, so that you can recharge it in time when there is no power, without affecting your use. The cover is made of ABS material and has silicone protection, which can effectively avert damage to the instrument from falling and greatly prolong its service time. Specifications: Material: ABS Battery: 1 * lithium battery, 3000mAh (included) Current measuring: Ranges: 0-24mA Precisions: (0.02%+0.003) Resolution: 0.001mA Internal impedance: 100 Voltage measuring: Ranges: 0-24V Precisions: (0.02%+0.003) Resolution: 0.001mA Internal impedance: 500K Passive measuring: Ranges: 0-24mA Precisions: (0.02%+0.003) Resolution: 0.001V Internal impedance: 100 24V loop: Ranges: 0-24mA Precisions: (0.1%+0.005) Resolution: 0.01mA Internal impedance: 100 Frequency: Ranges: 0-9999Hz Precisions: 2% Resolution: 5 digit Internal impedance: 1MK Millivolt: Ranges: -10~100mV Precisions: (0.03%+0.03) Resolution: 0.01mV Internal impedance: 2K Thermocouple (TC-S): Ranges: 0~1760C Precisions: (0.2%+1) Resolution: 1& 8451; Internal impedance: 2K Thermocouple (TC-B): Ranges: 0~18100C Precisions: (0.5%+1) Resolution: 1& 8451; Internal impedance: 2K Thermocouple (TC-E): Ranges: 0~990C Precisions: (0.2%+1) Resolution: 1& 8451; Internal impedance: 2K Thermocouple (TC-K): Ranges: 0~1320C Precisions: (0.2%+1) Resolution: 1& 8451; Internal impedance: 2K Thermocouple (TC-R): Ranges: 0~1760C Precisions: (0.3%+1) Resolution: 1& 8451; Internal impedance: 2K Thermocouple (TC-J): Ranges: 0~1190C Precisions: (0.3%+1) Resolution: 1& 8451; Internal impedance: 2K Thermocouple (TC-T): Ranges: 0~390C Precisions: (0.