FNIRSI DMT-99 Smart Digital Multimeter The FNIRSI DMT-99 digital multimeter is an advanced measuring tool that combines the accuracy of professional equipment with modern technological solutions. Equipped with a 2.4-inch TFT HD color screen, it supports automatic parameter recognition, data logging, and monitoring mode with audible notifications. It offers a wide range of measurements: AC/DC voltage, current, resistance, capacitance, frequency, temperature in the range of -55°C to 1300°C, neutral and phase wire detection (LIVE), NCV induced voltage detection, and diode test. Powered by a built-in 1500 mAh lithium battery, it provides up to 10 hours of operation, and True RMS, intelligent burnout protection, and DIY interface make it an indispensable tool for electricians, electronics engineers, and DIY enthusiasts. Crystal clear image – 2.4-inch HD TFT screen The large, high-resolution TFT color display makes reading measurements extremely easy and comfortable. The rich color palette and clear digits eliminate eye strain during long periods of work. Even in low light or at an angle, you can see every detail – no need to squint or use a flashlight to read the measurement result. Automatic recognition and three operating modes – measure without fuss Forget about turning the knob and wondering which mode to choose. The automatic recognition function identifies the measured parameter itself and selects the appropriate range. General mode supports all basic measurements, recording mode saves measurement curves and minimum and maximum values in real time, and monitor mode acts as an electronic guard – it warns you with a sound when the measurement exceeds or falls below the set threshold. This saves a lot of time and eliminates the risk of error. Record-breaking battery life – 10 hours of continuous operation The built-in 1500 mAh lithium battery provides up to 10 hours of intensive operation on a single charge. You can work all day on a construction site, in the field, or in a workshop without worrying that the device will run out of battery at the least opportune moment. Charging via the USB-C connector is fast and convenient – you can charge the multimeter from a power bank, phone charger, or in your car. Precise True RMS measurements – true effective value The True RMS function allows you to measure the true effective value of AC voltage regardless of the waveform shape. Typical multimeters can show large errors when measuring distorted, non-sinusoidal signals – PWM generators, switching power supplies, inverters, or power tools can be misleading. The DMT-99 with True RMS gives you confidence that the result is accurate, which is crucial for professional diagnostics and repairs. Live wire and neutral wire detection (LIVE) and NCV – safety without touching The LIVE function allows you to use a single probe to detect which wire is live (phase) and which is neutral (zero). You don't need two probes or to connect to the installation – just bring the device close to the wire. In addition, the NCV (Non-Contact Voltage) function detects the presence of AC voltage in a cable or socket without the need for direct contact. An audible signal and a visual change in the magnetic field intensity on the screen (four levels: none, low, medium, high) indicate the presence of voltage. It is the perfect tool for checking whether a wire is safe before starting work. Temperature measurement from -55°C to 1300°C – from freezing to scorching The built-in thermometer function with a wide measuring range makes the DMT-99 a versatile tool. You can check the temperature of electronic components, heat sinks, motors, furnaces, soldering irons, and air conditioners. Instant access to temperature measurement eliminates the need to carry a separate pyrometer or thermometer – you have everything in one device. A full range of electrical measurements – all in one device The multimeter measures AC and DC voltage, AC and DC current (up to 10A), resistance (10,000 counts), capacitor capacitance, signal frequency, and tests diodes and circuit continuity (with an audible signal). It's a complete diagnostic center in your pocket – you don't need separate current meters, ohmmeters, or capacitance meters. You can read all parameters with one device, which speeds up your work and reduces the amount of equipment you need to carry with you. Intelligent burnout protection – work safely The built-in anti-burnout system protects the device from damage in case of incorrect connection or exceeding the measurement range. 10A MAX FUSED fuses protect the current inputs, and an intelligent electronic system monitors the measurement parameters. Even if you make a connection error, the multimeter will not burn out – this saves you a lot of money on repairs and gives you peace of mind while working. HOLD function – save important measurements The HOLD/REL button freezes the current reading on the screen so you can calmly note the result, take a photo, or compare it with other measurements. You don't have to rush the reading or keep the probes connected longer than necessary. The data logging function allows you to record a series of measurements and analyze them later – ideal for documenting service work or quality control. Robust construction and thoughtful details – durability for years to come The ABS plastic housing is resistant to drops, dust, and moisture. Reinforced corners absorb shocks, protecting the delicate electronics inside. A foldable stand on the back allows you to position the multimeter at a comfortable angle on a table or in a switch cabinet. A belt clip allows for convenient carrying, and a hook on the back of the case allows you to hang the device on a nail or hook in your workshop. The USB-C charging port is universal and convenient – one cable for all devices. DIY interface and auto power off – a tool tailored to you The DIY Boot Interface feature allows advanced users to create their own personalized interfaces and measurement functions. You can customize the screen layout, add custom measurement modes, or extend the functionality of the device according to your needs. Auto power off saves battery power when you forget to turn off the device. It's an open approach to a tool that grows with your skills and requirements – an investment that won't become obsolete. Whether you are a professional electrician, service technician, DIY enthusiast, or hobbyist, the DMT-99 will meet your expectations. Manufacturer Fnirsi Model DMT-99 Display 2.4" TFT HD color Resolution 10000 Count (1W) Power supply 1500mAh lithium battery Operating time Up to 10 hours Charging USB-C Maximum current 10A MAX FUSED Fuses 10A, 750V AC / 1000V DC Housing ABS Weight ~200g (estimated) Interface DIY Boot Interface DC voltage Range: 9.999V ~ 999.9VAccuracy: ±(0.5% + 3) AC voltage Range: 9.999V ~ 750.0VAccuracy: ±(1% + 3) DC current Range: 9999µA ~ 9.999AAccuracy: ±(1.2% + 3) AC current Range: 9999µA ~ 9.999AAccuracy: ±(1.5% + 3) Resistance Range: 9.999MΩ ~ 999.9Ω99.99MΩAccuracy: ±(1.5% + 3)±(1.5% + 3) Capacitance Range: 999.9µF / 99.99µF / 9.999µF999.9nF / 99.99nF / 9.999nF9.999mF ~ 99.99mFAccuracy: ±(2.0% + 5)±(2.0% + 5)±(5.0% + 20) Frequency Range: 9.999MHz / 999.9KHz / 99.99KHz9.999KHz / 999.99Hz / 99.99Hz / 9.999HzAccuracy: ±(0.1% + 2) Temperature Range: -55°C ~ 1300°C (-67°F ~ 2372°F)Accuracy: ±(2.5% + 5)
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