1.Clear Read:High-definition LCD display, clear handwriting, long press HOLD two seconds to turn on the backlight, and it has flashlight lighting function. When used at night or in dark environment, you also read easily in dark environment. 2.Temperature Measure:Turn the dial to "TEMP" file, insert the temperature probe into the measured water, LCD will show the temperature of the measured water. Press SELECT to convert between Celsius and Fahrenheit. The measuring range is -20℃~1000℃(0℉~1832℉). 3.Wire-pulling Pliers:With wire-pulling pliers, safety guard, can be opened 25mm. 4.NVC Test:Non-contact voltage detection function with a sensor to detect voltage and avoid electric shock. 5.Multifunction:Can accurately measure DC voltage, AC voltage, AC current, resistance measurement, capacitance measurement, frequency measurement, temperature measurement, diode/on/off, flashlight, NCV, HOLD. 6.The product is battery powered. It is characterized by stable function and high reliability. 7.Small size, light weight, easy to operate. 8.Widely reserved in schools, automotive maintenance, factories, etc. Ideal for home users, maintenance enthusiasts, electricians and technician 
Specifications: Brand:SMART SENSOR
Model:ST821
DC Voltage:6V~1000V +/-(0.5%+3)
AC Voltage:6V~750V +/-(0.8%+3)
AC Current:6A~600A +/-(2.5%+30)
Resistance:6kΩ~600kΩ +/-(0.8%+3)
Capacitance:60nF~30000μF +/-(3.5%+20)
Frequency:1kHz~100kHz +/-(0.1%+3)
Temperature:-20℃~1000℃(0℉~1832℉)
Diode/On/Off:Yes
Square Wave Output:Yes
NCV:Yes
Full Unit Symbol:Yes
Backlight/Automatic:Yes
TRUE RMS Measurement:Yes
Flashlight Lighting:Yes
Display Mode:LCD Display
Maximum Display:5999 (3 5/6) polarity display
Measurement Method:Double integral A/D conversion
Sampling Rate:About 3 times per second
Overrange Display:The highest position shows "OL"
Low Voltage Display:"Battery" symbol appears
Working Environment:(0-40) degrees Celsius, relative humidity <80%
Power:AAA 2*1.5V Battery(Not included)
Color:Red And Black
Machine Size:175x68x25mm/6.89x2.68x0.98in
Display Size:32x23mm/1.26x0.91in
Weight:171g/5.985oz Package Information:
Package Size:210x115x50mm/8.27x4.53x1.97in
Package Weight:346g/12.11oz
General Box Package 
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