PROMAX TRMS Digital Multimeters: Precision Measurement Tools
Discover the comprehensive range of PROMAX True RMS (TRMS) digital multimeters, engineered for accuracy, reliability, and advanced functionality across various professional and educational applications.
Understanding RMS and True RMS
RMS stands for Root Mean Square, while TRMS denotes True Root Mean Square. TRMS instruments offer significantly higher accuracy when measuring AC current compared to standard RMS meters. This enhanced precision is why all PROMAX multimeters are equipped with True RMS measurement capabilities.
[Learn more about TRMS measurements]
PROMAX TRMS Multimeter Range Overview
Compare key features across the PROMAX TRMS multimeter lineup:
| Feature | FP-2 | PD-35x (PD-350/351/352) | PD-184 | MD-200C | IC-117/118 |
|---|---|---|---|---|---|
| TRUE RMS MEASUREMENTS | YES | YES | YES | YES | YES |
| DC Voltage | 1000 V | 1000 V | 1000 V | 1000 V | 1000 V |
| AC Voltage | 750 V | 750 V | 750 V | 750 V | 1000 V |
| DC Current | 20 A | 20 A | 20 A | 20 A | 10 A |
| AC Current | 20 A | 20 A | 20 A | 20 A | 10 A |
| Impedance | 60 MΩ | 60 MΩ | 220 MΩ | 20 MΩ | 40 MΩ |
| Capacitance | 60 mF | 4000 μF | >220 mF | 220 μF | >1000 μF |
| Frequency | ~10 MHz | ~10 MHz | >220 MHz | 200 kHz | 1 MHz |
| Temperature | -50 to 400 °C | -50 to 400 °C | -50 to 400 °C | - | -200~800 °C (IC-118) |
| Diodes & Continuity | YES | YES | YES | YES | YES |
| Transistor test | YES | YES | YES | YES | YES |
| Duty Cycle | YES | - | - | - | - |
| FUNCTIONS | |||||
| Datalogger | - | YES | YES | - | YES (IC-118) |
| Internal memory | - | YES | YES | - | YES (4 Mb) |
| Voice measurements | - | YES | YES | - | - |
| Bluetooth connectivity | - | PD-351/352 | YES | - | - |
| Selectable Auto range | YES | YES | YES | YES | YES |
| Data hold | HOLD | MAX/MIN | MAX/MIN/HOLD | HOLD | MAX/MIN/HOLD |
| DISPLAY | |||||
| Bar graph | - | YES | YES | - | YES |
| Backlighted LCD | YES | YES | YES | YES | YES |
| OTHER FUNCTIONS | |||||
| Contactless voltage detector | YES | YES | YES | - | - |
| Flashlight | - | YES | YES | - | - |
| Auto power off | Auto power off | Auto power off | Auto power off | Auto power off | Auto power off |
| Low battery warning | Low battery warning | Low battery warning | Low battery warning | Low battery warning | Low battery warning |
| Input protection | Input protection | Input protection | Input protection | Input protection | Input protection |
| Other | - | - | - | Relative measurement | Auto lock, Analog scale, Square-wave signal, PC conn. (infrared) |
PROMAX FP-2 Auto Range True RMS Digital Multimeter
The PROMAX FP-2 is a versatile digital multimeter designed for vocational training and everyday professional use. It simplifies measurements with its microprocessor-controlled autoranging function, preventing common user errors. Ideal for measuring low-voltage installations and electronic components, it also features a rubber anti-shock protector, a non-contact AC detector, and a temperature probe for evaluating overheating. For professionals in dimly lit environments, the FP-2 includes an integrated flashlight and an extra-large backlit LCD display.
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FP-2 Specifications
| Display | Graphic LCD backlighted screen, 58.5 x 51 mm |
| Reading rate | 3 measurements / s |
| Voltage ranges | From 60 mV to 1000 V (DC) / From 600 mV to 750 V (AC) |
| Current ranges | From 600 μA to 20 A (DC / AC) |
| Impedance ranges | From 600 Ω to 60 MΩ |
| Capacitance ranges | From 60 nF to 60 mF |
| Frequency test | From 9.999 Hz to 9.999 MHz |
| Duty Cycle | From 0.1% to 99.9% |
| Temperature probe | From -50 °C to 400 °C (-58 °F to 752 °F) |
| Contactless voltage detector | From 90 to 1000 V AC (50/60 Hz) |
| Frequency response | From 40 to 1000 Hz |
| Other functions and features | Diode test, Continuity test, Relative measurements, Automatic or manual range, Protected input, Data hold, Work LED flashlight, Anti-shock protector, Foldable holder |
| Power supply | 9 V (6F22) battery with low battery alert and auto power off function |
| Polarity indication | The symbol "-" appears in the display for negative polarity |
| Dimensions | 90 (W) x 190 (H) x 56 (D) mm |
| Included accessories | Test leads, temperature probe, quick reference guide, 6F22 9V battery, Phillips screwdriver, DC-231 carrying case (optional) |
PROMAX PD-35X Series Digital Multimeters
The PROMAX PD-35X series offers a modern approach to measurements with enhanced accuracy and comfort. These multimeters integrate Bluetooth connectivity, allowing remote data control via a mobile application (Android OS). Key features include 3 functions in 1 (Multimeter + Temperature + Datalogger), multi-connection support, automatic voice-reading measures, and a larger display with an analog bar graph.
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PD-350/351/352 Specifications
| Display | Graphic 69x52 mm LCD backlighted screen with 61-segment analog bar graph |
| Reading rate | 3 samples/s (digital mode) / 30 samples/s (analog bar graph mode) |
| Voltage ranges | From 60 mV to 1000 V (DC) / From 60 mV to 750 V (AC) |
| Current ranges | From 600 μA to 20 A (DC / AC) |
| Impedance ranges | From 600 Ω to 60 MΩ |
| Capacitance ranges | From 40 nF to 4000 μF |
| Frequency test | From 9.999 Hz to 9.999 MHz |
| Duty Cycle | From 0.1% to 99.9% |
| Temperature | From -50 to 400 °C |
| Bluetooth + Datalogger | PD-351 and PD-352 |
| TRMS | PD-350 and PD-352 |
| Frequency response | From 40 Hz to 10 kHz (PD-350 and PD-352) / From 40 Hz to 400 Hz (PD-351) |
| Other functions and features | Auto range, Diode test, hFE transistor test, Continuity test, Data hold, Relative value, MAX/MIN values, Input protection |
| Power supply | 3V (2x 1.5 V alkaline AA batteries) with low battery alert and auto power off function |
| Dimensions and weight | 85 (W) x 185 (H) x 30 (D) mm, 320 g. (without battery) |
| Included accessories | Test leads, Alligator clips, K-type thermocouple, Multi-functional test socket, Soft bag, Quick reference guide |
PROMAX PD-184 High Precision Digital Multimeter
The PROMAX PD-184 is a high-precision TRMS multimeter offering Bluetooth connectivity for live measurement transfer and remote control via a mobile device. It features automatic voice measurements, a high DC accuracy of 0.05%, and a comprehensive 3 5/6 digit display with a panoramic backlighted screen. This model excels in professional fields requiring reliable and accurate measurements.
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PD-184 Specifications
| Display | Graphic 69x52 mm LCD backlighted screen with 61-segment analog bar graph |
| Reading rate | 3 samples/s (digital mode) / 30 samples/s (analog bar graph mode) |
| Voltage ranges | From 220 mV to 1000 V (DC) / From 220 mV to 750 V (AC). Max accuracy ±0.05%. |
| Current ranges | From 220 μA to 20 A (DC / AC). Max accuracy ±0.5%. |
| Impedance ranges | From 220 Ω to 220 MΩ. Max accuracy ±0.5%. |
| Capacitance ranges | From 22 nF to >220 mF. Max accuracy ±3%. |
| Frequency test | From 22 Hz to >220 MHz. Max accuracy ±0.1%. |
| Duty Cycle | From 0.1% to 99.9%. Max accuracy ±1.2%. |
| Temperature | From -50 to 400 °C. Max accuracy 1%. |
| Data recording | Mobile device (Bluetooth connectivity) or directly to the multimeter internal memory (offline mode) |
| TRMS | Yes |
| Frequency response | From 40 Hz to 10 kHz |
| Other functions and features | Auto range, Diode test, hFE transistor test, Continuity test, Data hold, Relative value, MAX/MIN values, Input protection |
| Power supply | 3V (2x 1.5 V alkaline AA batteries) with low battery alert and auto power off function |
| Dimensions and weight | 85 (W) x 185 (H) x 30 (D) mm, 320 g. (without battery) |
| Included accessories | Test leads, Temperature probe, Multi-functional test socket, Alligator clips, Soft bag, Quick reference guide |
PROMAX MD-200C Desktop TRMS Digital Multimeter
The PROMAX MD-200C is a desktop digital multimeter that combines essential features for professional instruments, offering high accuracy, reliability, and a wide measurement range. It measures current up to 20 A and provides direct voltage diode drop readings. With a high basic accuracy of 0.05% for DC voltage and True RMS AC/AC+DC readings, it accurately measures various waveforms. Its wide-bandwidth measuring capability and functions like HOLD and continuity sound signal make it versatile. The rear-illuminated display ensures comfortable reading even in the dark.
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MD-200C Specifications
| Display | Extra large 4 1/2 digit graphical LCD display |
| Reading rate | 3 samples / s |
| Voltage ranges | From 200 mV to 1000 V (DC) / From 200 mV to 750 V (AC) |
| Current ranges | From 20 mA to 20 A (DC) / From 200 mA to 20 A (AC) |
| Impedance ranges | From 200 Ω to 20 MΩ |
| Capacitance ranges | From 20 nF to 200 μF |
| Frequency test | Up to 200 kHz |
| Other functions and features | Diode test, Continuity test, Transistor hFE test |
| Power supply | 220 / 110 V AC |
| Polarity | Automatic polarity |
| Dimensions and weight | 220 (W) x 260 (H) x 82 (D) mm |
| Included accessories | User manual, Test probes, Mains cable |
PROMAX IC-117, IC-118 Precision Digital Multimeters
The PROMAX IC-117 and IC-118 digital multimeters are designed for both field work and workbench applications, including laboratories, telecommunications, and training environments. The IC-117 is the basic model, while the IC-118 offers advanced features like capacitance measurements, PC connection, and internal memory. Both models feature a safety locking system for sockets, overload protection, AC TRMS value, and filtering options for V AC measurements. They provide a 4½ backlighted display with an analog bar graph and automatic or manual range selection.
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IC-117, IC-118 Specifications
| Display | 4 1/2 backlighted graphic LCD display with analog bar graph |
| Voltage measurement | From 100 mV to 1000 V |
| Current measurement | 1 A, 10 A (IC-117) / From 100 μA to 10 A (IC-118) |
| Impedance | From 100 Ω to 40 MΩ |
| Capacitance | From 10 nF to 1000 μF |
| Frequency test | From 100 Hz to 1 MHz |
| Temperature (IC-118) | From -200 °C to 800 °C |
| Data recording (IC-118) | Memory (4 Mbit) for more than 15000 samples (incl. date/time), PC connection via infrared port |
| TRMS value | Yes |
| Other functions and features | Analog trends scale, Diodes and continuity test, Automatic or manual range, Filtering option for V AC measurement, 5 V square-wave measurements, MAX/MIN/DATA HOLD, Automatic socket locking system, Overload protection |
| Power supply | 3V (2x alkaline 1.5 V) with low battery alert and auto power off, or mains adapter (only IC-118) |
| Included accessories | Safety measurement test probes (1.5 m), 4 mm test probes (1000 V CAT III, 600 V CAT IV), Rubber protective cover (only IC-118) |
