The UNI-T UT181A is a 60,000-count True RMS digital multimeter with trend capture and storage for up to 20,000 measurement records. Its colour display, high accuracy, dual-temperature inputs and low-pass filter support advanced electrical diagnostics and long-term monitoring.
Key Features
- 60,000-count True RMS measurement with 0.025% basic DC voltage accuracy and up to 100kHz AC bandwidth.
- Stores up to 20,000 measurement records and displays captured data as trend graphs for long-term monitoring and fault analysis.
- 3.5-inch 64K colour TFT display provides clear presentation of measurement values, trends, date and time.
- Dual-temperature inputs display T1, T2 and differential temperature values for comparative monitoring.
- 1kHz low-pass filter supports measurements on variable-frequency drives and motor-control equipment, while USB connectivity enables PC data transfer.
Product Specifications
| Electrical Measurement |
| DC Voltage |
60mV / 600mV / 6V / 60V / 600V / 1000V; ±(0.025% + 5 digits) |
| AC Voltage |
60mV / 600mV / 6V / 60V / 600V / 1000V; ±(0.3% + 30 digits) |
| DC Current |
600µA / 6000µA / 60mA / 600mA / 10A; ±(0.08% + 10 digits) |
| AC Current |
600µA / 6000µA / 60mA / 600mA / 10A; ±(0.6% + 20 digits) |
| Resistance |
600Ω / 6kΩ / 60kΩ / 600kΩ / 6MΩ / 60MΩ; ±(0.05% + 2 digits) |
| Conductance |
60nS; ±(2% + 10 digits) |
| Capacitance |
6nF / 60nF / 600nF / 6µF / 60µF / 600µF / 6mF / 60mF; ±(2% + 5 digits) |
| Frequency |
10Hz–60MHz; ±(0.01% + 5 digits) |
| Temperature |
-40°C to 1000°C / -40°F to 1832°F |
| Measurement Functions |
| Measurement Type |
True RMS, AC+DC |
| Ranging |
Automatic and manual |
| AC Bandwidth |
100kHz |
| Low-Pass Filter |
1kHz (-3dB) |
| Dual-Temperature Modes |
T1, T2, T1-T2 and T2-T1 |
| Additional Measurements |
Continuity, diode, duty cycle, dBV and dBm |
| Recording Functions |
Trend capture, peak hold, MAX/MIN/AVG, data hold and relative mode |
| Display and Data |
| Maximum Display |
59,999 counts, marketed as 60,000-count |
| Display Type |
3.5-inch 64K colour TFT LCD, 320 × 240 pixels |
| Analogue Bar Graph |
61 segments |
| Data Storage |
Up to 20,000 records |
| Standard Data Connection |
USB connection for PC data transfer |
| Optional Wireless Connection |
Bluetooth communication using the optional UNI-T UT-D07B adaptor |
| General |
| Ingress Protection |
IP65 |
| Power Supply |
7.4V rechargeable lithium-ion battery |
| Product Dimensions |
225 × 103 × 59mm |
| Net Weight |
638.6g |
| Certifications |
CE, UKCA and cETLus |
Applications
- Long-term monitoring and trend analysis of electrical and electronic systems.
- Testing variable-frequency drives, motor controls and industrial power equipment.
- Maintenance and fault finding in manufacturing, automation and electrical installations.
- Dual-temperature comparison, battery discharge monitoring and charging-system analysis.
Included Components
- UNI-T UT181A True RMS datalogging digital multimeter
- Rechargeable lithium-ion battery
- Test leads
- Temperature adaptor
- 2 × point-contact K-type thermocouples
- Power adaptor and adaptor connector
- USB data cable
- Carrying bag
- User manual
Connectivity Note: Bluetooth and mobile-app communication require the optional UNI-T UT-D07B Bluetooth adaptor, which is not included as standard.