Marmonix DT-9205 True-RMS Digital Multimeter – 1000 V DC, 20 A
The Marmonix DT-9205 is a True-RMS holster multimeter for electricians, service engineers and workshops: it checks AC/DC voltage to 1000 V DC / 750 V AC, current to 20 A, resistance to 200 MΩ and capacitance to 200 µF, plus diode, continuity and transistor hFE tests on one manual-range meter.
- DC voltage 200 mV–1000 V, ±(0.5%+3)
- AC/DC current up to 20 A
- Resistance 200 Ω–200 MΩ; capacitance 20 nF–200 µF
- hFE, diode and continuity tests; auto power-off; protective holster
DT-9205 True-RMS Digital Multimeter
The Marmonix DT-9205 True-RMS multimeter is built for field diagnostics, repair service, engineering workflows, and technical projects. It measures AC/DC voltage and current, resistance, and capacitance in a durable field-service holster, and adds transistor hFE, diode and continuity (on-off) tests, a 20 A current input and auto power-off.
Typical jobs include confirming supply voltage at distribution boards and control panels, checking fuses, cables and relay coils for continuity, measuring motor or heater current on the 20 A range, and testing capacitors, diodes and transistors on the repair bench. Manual range selection keeps readings fast and predictable once you know the circuit you are working on.
DT-9205 key features
- True-RMS measurement with DC voltage up to 1000 V and AC voltage up to 750 V
- 20 A current measurement on a dedicated input, plus mA and µA ranges
- Resistance from 200 Ω to 200 MΩ and capacitance from 20 nF to 200 µF
- Transistor hFE socket (NPN/PNP), diode test and continuity (on-off) testing
- Live-wire detection position on the rotary dial
- Auto power-off and overload protection; protective holster for site work
DT-9205 Multimeter Specifications
Ranges, accuracy and resolution from the Marmonix DT9200/9500 series datasheet:
| Function | Range | Accuracy | Resolution |
|---|---|---|---|
| DC Voltage | 200 mV / 2 V / 20 V / 200 V | ±(0.5%+3) | 0.1 mV / 0.001 V / 0.01 V / 0.1 V |
| DC Voltage | 1000 V | ±(0.8%+3) | 1 V |
| AC Voltage | 2 V / 20 V / 200 V | ±(0.8%+5) | 0.001 V / 0.01 V / 0.1 V |
| AC Voltage | 750 V | ±(1.2%+10) | 1 V |
| DC Current | 200 µA / 20 mA | ±(0.8%+10) | 0.1 µA / 0.01 mA |
| DC Current | 200 mA | ±(1.2%+8) | 0.1 mA |
| DC Current | 20 A | ±(2%+5) | 0.01 A |
| AC Current | 20 mA | ±(1.0%+15) | 0.01 mA |
| AC Current | 200 mA | ±(2.0%+5) | 0.1 mA |
| AC Current | 20 A | ±(3.0%+10) | 0.01 A |
| Resistance | 200 Ω – 200 MΩ (8 ranges) | ±(0.8%+3) to ±(0.8%+5) | 0.1 Ω to 0.1 MΩ |
| Capacitance | 20 nF / 200 nF / 2 µF | ±(2.5%+20) | 0.01 nF / 0.1 nF / 0.001 µF |
| Capacitance | 200 µF | ±(5.0%+10) | 0.1 µF |
| Other tests | hFE, diode, continuity, live-wire detection | — | — |
DT-9205 vs other Marmonix multimeters
The DT-9205 is the manual-range, high-voltage holster meter in the range. If you prefer auto-ranging with frequency and temperature, the MMU-112 6000-count True RMS multimeter (1000 V DC, 20 A, CAT IV 600 V) or the MVC 97 auto-ranging multimeter with NCV are better choices. For voltage and component checks in a pocket-size meter, see the MMU-P1; for a compact 600 V / 10 A auto-ranging meter, the MMU-110.
| Model | Ranging | Max voltage | Max current | Extra functions |
|---|---|---|---|---|
| DT-9205 | Manual | 1000 V DC / 750 V AC | 20 A | Capacitance, hFE, diode, continuity |
| MMU-112 | Auto / manual, 6000 counts | 1000 V DC / 750 V AC | 20 A | Frequency, temperature, MAX/MIN |
| MMU-110 | Auto, 4000 counts | 600 V | 10 A | Frequency, temperature |
| MMU-P1 | Auto / manual, 4000 counts | 600 V | No current ranges | Frequency, pocket flip cover |
Compare options in our digital multimeters category, and see our guide how to choose a multimeter or the clamp meter vs multimeter comparison.
DT-9205 multimeter FAQ
What can the DT-9205 measure?
It measures DC voltage to 1000 V, AC voltage to 750 V, AC/DC current to 20 A, resistance to 200 MΩ and capacitance to 200 µF, and it tests transistors (hFE), diodes and continuity.
Is the DT-9205 auto-ranging?
No. It is a manual-range meter: you select the range on the rotary dial. If you want auto-ranging, look at the MMU-112 or MVC 97.
How accurate is the DT-9205 on DC voltage?
DC voltage accuracy is ±(0.5%+3) on the 200 mV to 200 V ranges and ±(0.8%+3) on the 1000 V range.
Can the DT-9205 measure 20 A?
Yes. It has a dedicated 20 A input for AC and DC current, with ±(2%+5) accuracy on the 20 A DC range and ±(3.0%+10) on the 20 A AC range.
How is the DT-9205 different from cheap DT9205A meters?
The Marmonix DT-9205 is a True-RMS meter supplied with a published datasheet of ranges, accuracy and resolution, a protective holster and local Marmonix support. Many low-cost DT9205A listings give no accuracy figures at all.
Do you supply the DT-9205 in the UAE and GCC?
Yes. Contact Marmonix for a quote and delivery to the UAE, Saudi Arabia, Oman and the wider GCC.

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