High Accuracy Measurements: The -90EPD-APP-C digital multimeter features a 6000-count digital LCD display, providing excellent accuracy and stability for measuring DC & AC voltage, DC & AC current, resistance, capacitance, frequency, duty cycle, temperature, battery tests, diode voltage drop, and audible continuity. Wireless Connectivity: This multimeter supports wireless transmission, allowing it to connect with mobile devices through a dedicated app for remote monitoring and data logging, with a maximum range of 10-15 meters. User-Friendly Interface: Equipped with multifunctional buttons including a select button, hold button, range button, MAX/MIN button, Hz% button, and a relative measurement button, the -90EPD-APP-C ensures easy and intuitive operation. Safety Features: Compliant with IEC-1010 standards, the -90EPD-APP-C provides 1000V (CAT III) and 600V (CAT IV) over-voltage protection, ensuring safe and reliable use in environments. and Portable: Designed with a slim, portable form factor and built to withstand drops, the -90EPD-APP-C is a robust and convenient tool for both professional and hobbyist applications. Note: Connect to mobile phone APP-The meter has serial data output function. It can be connected with mobile phone by Bluetooth, so the measured data can be recorded, analyzed, and processed by mobile phone APP. Before use this function, you need install the mobile phone APP by scan the QR code. Max Voltage between input terminal and Earth Ground: CAT 600V Over-range Indication: display "OL" for the significant digit. Automatic display of negative polarity "-" . Low Battery Indication: YES Max LCD display: 6000 counts digit. Auto range & Manual range control Auto LCD backlight Color: Blue Material: ABS Package Contents: 1 x Multimeter 1 set x accessories 1 x English instruction manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.