FNIRSI DMT-99 Digital Multimeter – 9999 Counts TRMS, Rechargeable, Auto-Ranging, Recording & Monitoring

Meet the FNIRSI DMT-99 Digital Multimeter

Designed for electronics enthusiasts and professionals, the DMT-99 blends precise measurement with smart features that fit time‑pressed workflows. Its bright color display and internal 1500 mAh battery support field work, workshops, and home lab setups without frequent pauses for component changes.

Smart features that adapt to your workflow

• Recording Mode captures how readings evolve over time, storing up to eight measured values with clear Max and Min context for trend analysis.
• Monitoring Mode lets you set custom thresholds and delivers a warning when a reading moves outside the preset range.
• Rechargeable 1500 mAh battery provides longer operation between charges, refreshed via a convenient USB C port.
• Intelligent Mode automatically identifies the measurement type and selects the best range, reducing guesswork and speeding up tasks.
• Private customization on a 2.4 inch color TFT screen enables a personalized startup interface for dim lighting conditions.
• Dual fuse protection adds a layer of safety while testing circuits, improving confidence during hands-on work.

Measurement capabilities and practical uses

• Measures AC and DC voltage and current, suitable for automotive and home electronics repair tasks.
• Tests resistance and capacitance, checks continuity and diode function, and detects live wires with NCV capability.
• Provides a comprehensive set of tests in a compact handheld package, ideal for field service and DIY electronics.

In real-world use, the DMT-99 supports a range of everyday needs without overwhelming you with setup. The color display remains legible in varied lighting, and the device ships with reliable power options to keep you productive longer. The product is designed for general electrical testing and learning, and should be used with appropriate safety precautions. This is not a medical device, and it focuses on non-clinical electrical testing and diagnostics.

Real-world scenarios include automotive under‑hood diagnostics, appliance troubleshooting, and electronics repair work where quick readings, trend visibility, and safe operation matter. Whether you are verifying a power supply ripple, validating a circuit after repair, or monitoring a circuit’s behavior over a session, the DMT-99 is built to support your curiosity and accuracy in everyday tasks.