Multimeters: from the low-end digital and analog models, which are designed for radio amateurs, to the industrial high precision multi-purpose devices.
Digital multimeter for measuring AC/DC voltage, AC/DC current, resistance, as well as diode and continuity tests with auto ranging and non-contact AC voltage detector.
True RMS digital multimeter which measures AC/DC voltage, AC/DC current, resistance, capacitance, frequency, temperature and can be used for continuity and diode tests.
Bluetooth multimeter measures AC/DC voltage, AC/DC current, resistance, capacitance, temperature, frequency, and also performs diode and continuity testing.