Di-Log DL9319BT Auto-ranging TRMS Multimeter
The Di-Log DL9319BT Auto-ranging TRMS Multimeter helps electricians, engineers and maintenance teams test with speed and confidence. It measures True-RMS values, so readings stay reliable on non-linear loads. As a result, it is well suited to LED drivers, variable frequency drives and general fault finding.
Built for daily use, this meter covers voltage, current, resistance, capacitance, frequency and temperature. It supports measurements up to 1000V AC/DC and current up to 10A. In addition, the supplied K-type thermocouple adds useful temperature testing for service and repair work.
Smart Testing and Data Capture
Bluetooth connectivity gives the Di-Log DL9319BT Auto-ranging TRMS Multimeter extra flexibility on site. Users can pair it with the Di-LOG app to view readings in real time, log data remotely and share results from a phone or tablet. This makes reporting easier, especially when working over longer jobs or in hard-to-reach areas.
Low Z mode helps reduce ghost voltage issues when checking circuits. It removes unwanted readings caused by capacitive coupling, which improves clarity during live testing. Therefore, the meter supports safer and more accurate decisions during fault diagnosis.
Designed for Field Conditions
A 6000-count backlit LCD display makes results clear in poor light. The built-in torch and illuminated rotary dial also help when working in dark panels, loft spaces or confined areas. Meanwhile, min, max and average hold functions help capture changing values during testing.
The Di-Log DL9319BT Auto-ranging TRMS Multimeter uses a double-moulded, fully sealed enclosure for tough site work. Its IP67-rated casing protects against dust and water ingress, while CAT III / CAT IV safety ratings support use in high-energy environments. Automatic power-off helps save battery life, with a manual override available when longer testing is needed.
Key Features
- Bluetooth connection supports real-time readings through the Di-LOG mobile app.
- Remote data logging helps record results without staying beside the meter.
- True-RMS measurement improves accuracy on non-linear electrical loads.
- Low Z mode reduces ghost voltage interference during circuit checks.
- 6000-count backlit LCD display gives clear readings in low light.
- Built-in torch helps with testing in dark or confined areas.
- Illuminated rotary dial improves visibility while selecting functions.
- Max, min and average hold captures changing values during tests.
- Auto power-off saves battery life after 15 minutes of inactivity.
- Manual power override supports longer periods of continuous testing.
- Double-moulded sealed casing improves durability during field use.
- IP67-rated enclosure protects against dust and water ingress.
- CAT III / CAT IV safety rating supports high-energy testing environments.
- Supplied K-type thermocouple supports temperature measurement tasks.
- Manufacturer part code DL9319BT is provided for ordering and identification.
Technical Specifications
| Product name | Di-Log DL9319BT Auto-ranging TRMS Multimeter |
| Manufacturer part code | DL9319BT |
| AC voltage range | 1.0 mV to 1000 V AC |
| AC voltage basic accuracy | 1.0% ±3 digits |
| AC+DC voltage range | 1 mV to 1000 V AC+DC |
| DC voltage range | 0.1 mV to 1000 V DC |
| DC voltage basic accuracy | 0.09% ±2 digits |
| Low Z voltage range | 1 mV to 1000 V AC |
| AC current range | 0.1 µA to 10 A AC |
| AC current basic accuracy | 1.5% ±3 digits |
| DC current range | 0.1 µA to 10 A DC |
| DC current basic accuracy | 1.0% ±3 digits |
| Resistance range | 0.1 Ω to 60 MΩ |
| Resistance basic accuracy | 0.3% ±4 digits |
| Continuity | Less than 300 Ω at less than 1 mA |
| Capacitance range | 0.01 nF to 1000 µF, with 10 pF to 6000 µF also stated |
| Capacitance basic accuracy | 3.5% ±4 digits |
| Frequency range | 0.001 Hz to 40 MHz, with 0.001 Hz to 9.99 kHz also stated |
| Frequency basic accuracy | 0.1% ±1 digit |
| Temperature range | -45°C to 750°C, with -20°C to 760°C also stated |
| Temperature basic accuracy | 3.5% ±4 digits |
| Diode test | 0.9 mA typical, 2.8 V DC |
| Display | 6000-count backlit LCD display with segmented bar graph |
| Power supply | 1 x 9 V PP3 alkaline battery, supplied |
| Dimensions | 182 x 82 x 55 mm |
| Weight | 360 g |
| Ingress protection | IP67-rated casing |
| Safety rating | CAT III / CAT IV safety rated |
Comparison Table
| Measurement | Range | Basic accuracy |
| AC voltage | 1.0 mV to 1000 V | 1.0% ±3 digits |
| DC voltage | 0.1 mV to 1000 V | 0.09% ±2 digits |
| AC current | 0.1 µA to 10 A | 1.5% ±3 digits |
| DC current | 0.1 µA to 10 A | 1.0% ±3 digits |
| Resistance | 0.1 Ω to 60 MΩ | 0.3% ±4 digits |
| Capacitance | 0.01 nF to 1000 µF | 3.5% ±4 digits |
| Frequency | 0.001 Hz to 40 MHz | 0.1% ±1 digit |
| Temperature | -45°C to 750°C | 3.5% ±4 digits |
Document Downloads
What’s Included
- DL9319BT Multimeter
- Red and black test leads
- K-type adaptor and thermocouple
- Carry case
- Instruction manual