Digital Multimeter DT-830D with Audible Continuity Buzzer

Handle daily electrical diagnostics, hobbyist electronics, and household maintenance with the DT-830D Digital Multimeter. As one of the most widely used, cost-effective test instruments worldwide, the DT-830D adds an audible continuity buzzer to the classic 830-series platform, making it easy to test broken wires, blown fuses, and circuit connections without constantly glancing at the screen.

Featuring a clear 3½-digit LCD screen, rotary range selector, and bundled test leads, this compact meter measures AC/DC voltage, DC current, resistance, diodes, and transistor gain (hFE). It is an essential, entry-level diagnostic tool for students, makers, DIYers, and home toolkits.

Key Features & Specifications

• Product Type: Compact Handheld Digital Multimeter with Continuity Buzzer.

• Model: DT-830D (Yellow/Black casing).

• Display:

  • 3½ digit LCD display with a maximum reading of 1999 counts.

  • Automatic polarity indicator and low-battery alert icon.

• Core Measurement Functions:

  • DC Voltage (DCV): 200mV / 2000mV / 20V / 200V / 1000V.

  • AC Voltage (ACV): 200V / 750V (50Hz–60Hz mains frequency testing).

  • DC Current (DCA): 200µA / 2000µA / 20mA / 200mA / 10A (unfused 10A high-current test port).

  • Resistance ($\Omega$): 200$\Omega$ / 2000$\Omega$ / 20k$\Omega$ / 200k$\Omega$ / 2000k$\Omega$ (2M$\Omega$).

• Diagnostic & Circuit Testing Tools:

  • Audible Continuity Buzzer: Emits a continuous beep when measured resistance is below approx. 50$\Omega$ for fast tracing of open/short circuits.

  • Diode Test: Checks forward voltage drop and junction health on diodes and LEDs.

  • Transistor hFE Test: Integrated 8-pin front socket measures amplification factor (0–1000) for NPN and PNP transistors.

  • Square Wave Signal Output: Provides a test signal output for basic audio and radio frequency tracing.

• Safety & Overload Protection:

  • Fast-acting internal fuse protects milliamp and voltage ranges from current overload.

  • High-visibility bright yellow shock-resistant ABS plastic casing.

• Power Source:

  • Powered by a standard 9V battery (6F22 / 6LR61).

• Compact & Lightweight Form Factor:

  • Pocket-sized dimensions (approx. 126mm $\times$ 70mm $\times$ 24mm) and featherlight build (approx. 150g).

What's Included in the Box

• 1x DT-830D Digital Multimeter

• 1x Pair of Color-Coded Test Leads (Red Positive / Black Negative)

• 1x User Manual

Safety Tip: Always plug the black probe into the COM jack and the red probe into the V$\Omega$mA jack for general testing. Only move the red probe to the 10ADC jack when measuring high direct current up to 10A, and limit high-current measurements to under 10 seconds to prevent overheating. Never measure resistance or continuity on an active, live circuit.