GVDA Digital Clamp Meter GD166/168 GVDA GD166A Digital Clamp Meter

GVDA GD166A Digital Clamp Meter 6000-Count True RMS AC Clamp Multimeter with NCV, Temperature & Smart Auto Mode

The GVDA GD166A is a True RMS AC-only clamp meter designed for reliable electrical diagnostics in household, automotive, and technical environments. Equipped with a 6000-count VA color display, SMART AUTO measurement mode, non-contact voltage detection, continuity/diode testing, temperature measurement, and a full range of voltage, resistance, capacitance, frequency, and duty-cycle functions — GD166A provides essential capabilities for electricians and advanced DIY users.

Key Features

• True RMS measurement: accurate readings for AC signals, including non-linear loads.
• 6000-count VA color LCD: bright, high-contrast screen with automatic unit display.
• AC voltage & AC current measurement: full ranges up to 600V and 600A.
• SMART AUTO mode: automatically identifies voltage, resistance, and continuity signals.
• NCV non-contact voltage detection: fast identification of live AC fields.
• Live wire detection: “--L” (low) and “--H” (high) indicators with buzzer + LED.
• Frequency, duty cycle, resistance, capacitance, temperature: full multifunction capability.
• MAX/MIN capture: records measurement extremes.
• Backlight & flashlight: support work in dark environments.
• Automatic calibration at startup: “CAL” displayed for improved accuracy.
• Clamp opening: 36 mm.
• Safety indicators: over-range “OL”, low battery symbol, polarity “–”.

Technical Specifications

• Display Count: 6000
• DC Voltage: 600mV / 6V / 60V / 600V
• AC Voltage: 600mV / 6V / 60V / 600V
• AC Current: 60A / 600A
• DC Current: Not supported
• Resistance: 600Ω / 6kΩ / 60kΩ / 600kΩ / 6MΩ / 60MΩ
• Capacitance: 6nF / 60nF / 600µF / 6µF / 60µF / 600µF / 6mF / 60mF
• Frequency: 100Hz / 1kHz / 10kHz / 100kHz / 1MHz / 10MHz
• Duty Cycle: 1–99%
• Temperature: -40℃ ~ 1000℃ / -40°F ~ 1832°F
• Inrush Current: Not supported
• DCA Zero: Not supported
• Continuity Test: Yes
• Diode Test: Yes
• NCV Detection: Yes
• Live Wire Detection: Yes (“--L” / “--H”)
• Data Hold: Yes
• MAX/MIN: Yes
• Auto Power Off: Yes
• True RMS: Yes
• Polarity Indication: “–”
• Over-Range Indication: “OL”
• Clamp Opening Size: 36 mm
• Power Supply: 3 × AAA batteries (not included)
• Product Size: 199 × 81 × 32 mm
• Weight: 200 g
• Package Weight: 500 g
• Safety Rating: EN61010-1 CAT III 600V

Typical Applications

• AC current diagnostics (up to 600A)
• Household and industrial electrical troubleshooting
• HVAC temperature measurement
• Resistance, continuity, diode checks
• Capacitance and frequency measurement
• NCV/live-wire safety detection

Package Contents (Overview)

• 1 × GVDA GD166A Clamp Meter
• 1 × Pair of Test Leads
• 1 × Thermocouple Temperature Probe
• 1 × Storage Bag
• 1 × User Manual
• 1 × Box Package

The GVDA GD166A is a reliable AC clamp multimeter offering True RMS accuracy, SMART AUTO mode, NCV detection, temperature measurement, and a 6000-count color display — ideal for electricians and demanding home users who require safe and accurate AC-focused measurements.

Notes

• Batteries are NOT included. Requires 3 × AAA.
• Always observe CAT III/CAT IV safety guidelines when measuring high-voltage circuits.
• For maximum accuracy, allow the multimeter to stabilize for several seconds after powering on.