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ZOYI ZT-100 Digital Multimeter (4000 Counts - Auto-Ranging True RMS)

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Engineered to be a complete, all-in-one diagnostic companion, the ZT-100 incorporates True RMS technology to accurately measure alternating current and voltage, even on non-sinusoidal waveforms. It effortlessly handles DC/AC voltage up to high industrial ranges, current up to 10 Amps, capacitance, frequency, and duty cycle. Housed in a beautifully ergonomic, durable shell and powered by standard AAA batteries, it provides professional-grade testing capabilities in a form factor small enough to slip right into your pocket.

Key Features & Functional Advantages

  • Auto-Ranging Convenience: Completely eliminates the need to guess the voltage or resistance range. Simply set the dial to your desired parameter, and the meter automatically calculates the highest resolution output.

  • True RMS Measurement: Provides highly accurate readings on complex alternating current signals, which is critical when analyzing modern switching power supplies and inverters.

  • Comprehensive Diagnostics: Measures DC/AC Voltage, DC/AC Current, Resistance, Capacitance, Frequency, and Duty Cycle, while also featuring a dedicated diode tester and continuity buzzer.

  • Clear, Backlit Display: Features a crisp, 4000-count LCD screen with an integrated backlight, ensuring your measurements are always perfectly readable whether you are at a bright workbench or inside a dark equipment cabinet.

  • Smart Power Management: Automatically powers down after 15 minutes of inactivity to preserve your battery life, ensuring the meter is always ready when you reach for it.

Perfect For

  • Embedded Hardware Engineering: Verifying precise 3.3-Volt logic rails, checking trace continuity, and confirming resistor values on custom ESP32 and STM32 development boards.

  • IoT Energy Systems: Safely verifying high-voltage AC mains and tracking DC load currents while calibrating and testing custom energy monitoring prototypes.

  • Homelab Maintenance: Troubleshooting physical hardware faults, testing custom power cables, and verifying power supplies on dedicated Linux or Proxmox server rigs.

  • General Electronics Repair: The ideal, elegant daily driver for testing household appliances, batteries, and lighting circuits.

Technical Specifications

  • Device Type: Auto-Ranging True RMS Digital Multimeter

  • Display: 4000 Counts LCD with Backlight

  • DC Voltage Range: 400mV to 1000V

  • AC Voltage Range: 400mV to 750V

  • DC/AC Current Range: 40mA to 10A

  • Resistance Range: 400Ω to 40MΩ

  • Capacitance Range: 4nF to 4mF

  • Frequency Range: 99.99Hz to 9.999MHz

  • Update Rate: 3 times per second

  • Power Source: 2 x 1.5V AAA Batteries (Typically not included)

Ensure your order is placed by 2PM to guarantee next-day delivery! Our commitment to prompt service includes a 24-hour delivery system through our network of carriers, aimed at ensuring your package arrives right on schedule.

Please note, a delivery fee of €4.99 applies for orders under €50. For those in remote areas, be aware that our couriers may apply an extra surcharge. This additional fee helps cover the costs of transporting your items to harder-to-reach locations.