FNIRSI DMT-99 Intelligent Color Screen Digital Multimeter

The FNIRSI DMT-99 is a modern 9999-count smart digital multimeter equipped with a 2.4-inch TFT colour screen. Ideal for diagnosing FPV drone electronics, verifying BEC output voltages, and checking continuity on tight flight controller pads, this meter replaces the traditional rotary dial with a push-button interface and smart auto-ranging. It operates on a built-in Type-C rechargeable lithium battery, eliminating the need to carry spare AA cells in your field kit.

Key features

• High-contrast 2.4-inch TFT colour display for clear visibility in varying workshop or field lighting conditions.
• Smart auto-ranging logic that automatically detects and selects the correct measurement mode.
• Comprehensive testing suite including AC/DC voltage, current, resistance, capacitance, frequency, and NCV (Non-Contact Voltage).
• Intelligent anti-burn hardware to protect internal circuitry against accidental incorrect probe placement.
• Integrated 1500mAh lithium battery rechargeable via a standard USB Type-C port.

Specifications

• Display: 2.4-inch TFT colour LCD
• Resolution: 9999 counts
• Measurements: AC/DC Voltage (True RMS), AC/DC Current, Resistance, Capacitance, Frequency, Duty cycle, Temperature (-55 to 1300 C), Diode, Continuity, NCV, Live wire
• Modes: Normal, recording (trend graph, max/min) and monitoring (threshold alarm)
• Max DC Voltage: 999.9V
• Max AC Voltage: 750V
• Max Current: 9.999A (AC/DC)
• Protection: Dual ceramic fuses
• Battery: 1500mAh Lithium-ion
• Charging Interface: USB Type-C
• Dimensions: 153 x 80 x 39 mm
• Weight: 185 g

The DMT-99's slim, smartphone-style form factor allows it to slide easily into any tool pouch, giving you a high-precision diagnostic tool for detailed workbench soldering inspections and quick flight-line repairs.