Keysight Technologies U1231A Handheld Digital Multimeter, True RMS, 600V ac Max, True RMS: Yes, Functions Measured: AC Voltage, Capacitance, Continuity, DC Voltage, Diode, Frequency, Resistance, Temperature, Absolute Maximum DC Voltage Measurement: 600V dc, Absolute Maximum Resistance Measurement: 60MΩ, Absolute Maximum Capacitance Measurement: 10mF, Absolute Maximum Temperature Measurement: +1372°C, Connectivity: Bluetooth, Maximum Frequency: 1kHz, AC Current Measurement Resolution: 0.01µA ac, AC Voltage Measurement Resolution: 0.1mV ac, DC Voltage Measurement Resolution: 0.1mV dc