Safe Reliable The meter meets the safety requirements of (IE-61010-1, IE-61010-2-030, IE-61010-2-032) electronice measuring instrument. CAT.III 600V overvoltage safety standards and pollution level 2. Anti-Burn with double fuses. Overload protection on all ranges. Data Hold Need to record the measurement value, just press the 'H' button, then the reading showed on the screen will be locked. Large LCD Color Screen The screen is made of high definitionand LCD and scratch-resistant.And with 4.5inch screen, which can let you operate and see the data more clearly, provides more clear reading to you. Thermometer Test   Test liquid temperature from -40°F ~ +1832°F/-40°C ~ +1000°C ±(1%+3). Material/Model ABS/MT2202 Power 3.7V lithium battery (included) DC/AC Current 999.9mA/10A DC/AC Voltage 600mV/9.999V/99.99V/999.9V Resistance 999.9Ω//99.99KΩ/999.9KΩ/9.999MΩ/99.99MΩ Capacitance 9.999nF/999.9nF/99.99uF/999.9uF/99.99mF Temperature -40~1000℃(-40~1832℉) Frequency 100Hz/1000Hz Diode 1V Auto Shutdown Time 15 minutes Maximum LCD Display Value 10000 digits Line on-off Test 0.1Ω Protective Case   Screen Protector These meters have screen protector. In order to make the numbers on the screen clearer during use, you can tear off the protector. Automatic Power Off Without any operation in about 15 minutes, the multimeter will automatically turn off. Lithium Battery Fuses This electrical tester comes with a 600mAh lithium battery that can be recharged repeatedly, which solves the problem of frequent battery replacement before. Package list: 1 * multimeter 2 * temperature wire 1* user manual 1* thermocouple 1* charging wire