Fangrui Product Details With The Ht Automatic Digital Multimeters Mode, It Lets You Quickly Switch Between All Measurement Tasks, Including Ac Voltage, Resistance And Continuity, Without Having To Select A Mode Or Range. It Makes Measurement Work Simple, Fast And Accurate Digital Multimeter Completely Safe Non-contact Voltage Testing With Visual And Audible Alarms; A Time-saving And Safe . Tm-510 Digital Multimeter External Silicone Cover Protects Automatic Digital Multimeters From Damage And Potential You Can Use The Digital Multimeter Tm-510 To Intelligently Measure Voltage On Ac Power Lines Without Connecting Wires, Making Lines Troubleshooting Much Easier Has Passed Ce And Rohs Certification. Overload Protection Measures Are Adopted Inside The Instrument To Improve The Security Performance Of The Product And Maximize User Security. The Electric Automatic Digital Multimeter Supports Data Retention, Automatic Shutdown, Low Battery Indicator, Backlight Display, And Flashlight Functions. All These Convenient Features Ma