Digital Multimeters – Voltmeters & Clamp Meters

Digital Multimeter

A digital multimeter is a test instrument used to measure two or more electrical values, primarily resistance, current, and voltage (in volts and amps) (ohms). For technicians working in the electrical and electronic industries, these are typical diagnostic tools. Voltage, current, and resistance are just a few of the electrical stimuli that these devices can measure and verify. It combines the functions of a voltmeter, an ammeter, and an ohmmeter and common diagnostic instruments used by technicians and electrical engineers. Robocraze offers top-quality multimeters at the lowest price starting from just Rs. 169 to Rs. 1235.

Voltmeter

A voltmeter is a device that measures the voltage, or potential difference between two points in an electrical or electronic circuit. Direct current (DC) circuits are the intended usage of some voltmeters, whereas alternating current (AC) circuits are the intended use of other voltmeters.

To get the best voltmeter and other tools for your projects check out our collections.

Digital Multimeters Comparison Table

Product	Price (Approx)	Voltage Range (DC / AC)	Current Range (DC / AC)	Key Features
HTC DM-98 Digital Multimeter	₹1,949	DC: 600 mV–1000 V AC: 600 mV–750 V	600 µA–10 A (AC & DC)	6000-count display, True RMS, auto-range, resistance 600 Ω–60 MΩ, capacitance 10 nF–1000 µF, dual LCD with bargraph
HTC DM-91 Digital Multimeter	₹1,783	DC: up to 1000 V AC: up to 750 V	DC: up to 20 A AC: up to 20 A	4000-count display, voltage/current/resistance/capacitance, frequency, temperature, continuity, backlight, data hold
MetroQ MTQ-888 Digital Multimeter	₹2,075	DC: 200 mV–1000 V AC: 2 V–500 V	20 mA–20 A (AC & DC)	1999-count display, resistance 200 Ω–200 MΩ, capacitance 20 nF–200 µF, frequency 2 kHz–200 kHz, temperature 20–1000°C, backlight
Mastech MS8217 Digital Multimeter	₹4,258	DC & AC voltage (range not specified)	DC & AC current (range not specified)	4000-count display, auto/manual range, resistance, capacitance, temperature measurement

Safety Tips for Using a Digital Multimeter

Always check the multimeter’s category rating (CAT II, CAT III, CAT IV) before measuring high-voltage circuits.

Inspect the meter and probes for damage, cracks, or exposed metal before use.

Start with the highest range when measuring an unknown voltage or current.

Never measure resistance, continuity, or diode mode on a live circuit.

Do not touch probe metal tips during measurement to avoid electric shock.

Ensure the test leads are connected to the correct ports (V/Ω, mA, A).

Avoid measuring current in the voltage port to prevent fuse damage or sparking.

Use insulated gloves and safety goggles while working with high-voltage circuits.

Keep your hands dry and avoid working in wet environments.

Turn off the multimeter after use to extend battery life and prevent accidental contact.

Calibration Instructions for a Digital Multimeter

Use a certified reference voltage source (e.g., 1.000V, 5.000V, 10.000V) for voltage calibration.

Allow the multimeter to warm up for 5–10 minutes before calibration for stable readings.

Set the meter to DC voltage mode and compare the displayed reading with the reference value.

Adjust the calibration screws (if available) or follow the device’s internal menu for correction.

For current calibration, use a precision shunt resistor and a known stable current source.

Perform resistance calibration using precision resistors (1% or better tolerance).

Check continuity and diode modes using standard test components like LEDs or known diodes.

Ensure the test leads themselves are calibrated or replaced if they show inconsistent readings.

After calibration, verify accuracy across multiple ranges (low, mid, high).

Record all calibration results for maintenance logs or yearly audits.

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