【 True RMS Clamp Meter】 True RMS AC/DC Amp Multimeter can accurately measure DC voltage 0.1mV~1000V; AC voltage 1mV~750V; DC and AC amperage 100mA~1000A; Resistance 0.1~60MΩ; Capacitance 1pF~60mF; Frequency 0.001~9.999MHz; Temperature -4~1832°F (℃/°F optional), Diode and on-off testing. Easy to use in the lab and at home. 【Bluetooth APP Clamp Ammeter】It can be connected with mobile phone by Bluetooth, Auto pair with Android / IOS phone via bluetooth nearby, It's easy to install, just scan the QR code or search “AiLink” in Google play or APP Store, so you can measure data and analyze it by mobile phone APP. NOTE: The mobile phone APP can be installed in iphone 4S iOS 7.0 or android 4.30 system and up [Safe NCV Detector] 45mm large jaw design can easily clamp on thick wires and take amperag.