weight | 17.7kg | ||








The UNI-T UT501A is a professional digital insulation resistance tester (Megohmmeter) designed for electrical insulation testing up to 5GΩ. It features selectable test voltages of 100V, 250V, 500V, and 1000V, making it suitable for testing motors, transformers, cables, switchgear, electrical installations, and industrial equipment. With automatic discharge protection, backlit LCD, audible and visual alarms, and AC voltage measurement up to 750V, the UT501A is an ideal tool for electricians and maintenance professionals.
| Specification | Details |
|---|---|
| Brand | UNI-T |
| Model | UT501A |
| Product Type | Digital Insulation Resistance Tester (Megohmmeter) |
| Display | Digital LCD (2000 Counts) |
| Maximum Display | 1999 |
| Insulation Resistance Range | 0MΩ – 5GΩ |
| Test Voltages | 100V / 250V / 500V / 1000V |
| AC Voltage Range | 30V – 750V |
| Test Current | ≥1mA |
| Short Circuit Current | <2mA |
| Auto Range | Yes |
| Automatic Discharge | Yes |
| LCD Backlight | Yes |
| Light Alarm | Yes |
| Buzzer Alarm | Yes |
| High Voltage Indicator | Yes |
| Overload Protection | Yes |
| Low Battery Indicator | Yes |
| Test Voltage Display | Yes |
| 10MΩ Internal Resistance Test | Yes |
| Operating Temperature | -10°C to 40°C |
| Power Supply | 6 × 1.5V AA (LR6) Batteries |
| Product Dimensions | 150 × 100 × 71 mm |
| Weight | Approx. 500 g |
| Certifications | CE, FCC, RoHS |
| Origin | Mainland China |
weight | 17.7kg | ||








The UNI-T UT501E is a professional fast insulation resistance tester designed for electricians, maintenance engineers, and industrial applications. It measures insulation resistance up to 4GΩ with five selectable test voltages (100V, 125V, 250V, 500V, and 1000V). Featuring 2.5× faster testing, PI & DAR analysis, data storage, remote testing, PC software support, and IP54 protection, the UT501E is an ideal solution for testing motors, transformers, cables, switchgear, and electrical installations.
| Specification | Details |
|---|---|
| Brand | UNI-T |
| Model | UT501E |
| Product Type | Fast Digital Insulation Resistance Tester |
| Insulation Resistance Range | 0.01MΩ – 4000MΩ (4GΩ) |
| Selectable Test Voltages | 100V / 125V / 250V / 500V / 1000V |
| Low Resistance Measurement | 0.00Ω – 400Ω |
| AC Voltage Measurement | 30V – 600V |
| DC Voltage Measurement | 30V – 600V |
| Rated Test Current | 1.0mA |
| Short Circuit Current | <2.0mA |
| Fast Measurement | 2.5× Faster |
| PI Test | Yes |
| DAR Test | Yes |
| Comparison Function | Yes |
| Auto Discharge | Yes |
| High Voltage Alarm | Audible & Visual |
| Manual Range | Insulation Measurement |
| Auto Range | Voltage Measurement |
| Data Storage | 99 Groups |
| PC Software | Supported (USB Connection) |
| Remote Testing | Supported |
| Security Lock | Yes |
| Analog Bar Graph | Yes |
| Backlight | Yes |
| Auto Power Off | Yes |
| Low Battery Indicator | Yes |
| Protection Rating | IP54 |
| Safety Category | CAT III 600V |
| Power Supply | 11.1V 2600mAh Rechargeable Lithium Battery |
| Dimensions (L × W × H) | 161 × 116 × 68 mm |
| Product Color | Black & Red |
| Battery Included | Yes |
| Origin | Mainland China |








The UNI-T UT502A is a professional digital insulation resistance tester (Megohmmeter) designed for high-voltage insulation testing up to 2500V. It measures insulation resistance up to 20GΩ and features PI & DAR testing, low resistance measurement, AC voltage testing, automatic discharge, LCD backlight, audible alarms, and overload protection. It is an ideal instrument for electricians, industrial maintenance engineers, power distribution systems, cable testing, transformer maintenance, and motor insulation inspection.
| Specification | Details |
|---|---|
| Brand | UNI-T |
| Model | UT502A |
| Product Type | Digital Insulation Resistance Tester (Megohmmeter) |
| Display | Digital LCD (2000 Counts) |
| Insulation Resistance Range | 0MΩ – 20GΩ |
| Selectable Test Voltages | 500V / 1000V / 2500V |
| Low Resistance Range | 0.01Ω – 200Ω |
| AC Voltage Measurement | 30V – 600V |
| Rated Test Current | 1mA |
| Short Circuit Current | <2mA |
| Accuracy Class | 3% |
| DAR Function | Yes (60s/15s & 60s/30s) |
| PI Function | Yes |
| Auto Range | Yes |
| Auto Discharge | Yes |
| LCD Backlight | Yes |
| Light Alarm | Yes |
| Buzzer Alarm | Yes |
| High Voltage Indicator | Yes |
| Overload Protection | Yes |
| Low Battery Indicator | Yes |
| Test Voltage Secondary Display | Yes |
| 10MΩ Internal Resistance Test | Yes |
| Operating Temperature | 0°C – 50°C |
| Power Supply | 6 × 1.5V AA (LR6) Batteries |
| Display Size | 70.6 × 34 mm |
| Dimensions (L × W × H) | 150 × 100 × 71 mm |
| Weight | Approx. 500 g |
| Product Color | Red & Grey |
| Certifications | CE, FCC, RoHS, IEC 61557 |
| Origin | Mainland China |






The UNI-T UT503PV is a professional photovoltaic (PV) insulation resistance tester designed for testing solar power systems, electrical installations, cables, motors, and industrial equipment. It offers live PV insulation testing, insulation resistance measurement up to 4000MΩ, and voltage measurement up to 1000V DC / 600V AC. With Bluetooth connectivity, USB data transfer, 1000-record memory, stepping voltage testing, compare function, and automatic discharge protection, the UT503PV is an ideal instrument for solar installers, maintenance engineers, and electrical professionals.
| Specification | Details |
|---|---|
| Brand | UNI-T |
| Model | UT503PV |
| Product Type | PV Insulation Resistance Tester |
| Insulation Resistance Range | 1.51MΩ – 4000MΩ |
| PV Insulation Test | Supported (Live PV Testing) |
| Output Test Voltage | 1000V DC |
| DC Voltage Measurement | Up to 1000V DC |
| AC Voltage Measurement | Up to 600V AC |
| Stepping Voltage Function | Yes |
| Continuous Measurement | Yes |
| Time Measurement | Yes |
| Compare Function | Yes (IR Comparison) |
| Auto Discharge | Yes |
| High Voltage Alarm | Yes |
| Data Storage | 1000 Measurement Records |
| Communication | Bluetooth App + USB Cable |
| Display | Digital LCD with Auto/Manual Backlight |
| Backlight | Auto / Manual |
| Certification | CE |
| Application | PV & Electrical Insulation Testing |
| Origin | Mainland China |
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The UNI-T UT5583 is a high-performance desktop insulation resistance tester designed for laboratories, production lines, quality control, and industrial electrical testing. It measures insulation resistance up to 10TΩ with programmable DC test voltages from 1V to 1000V. Featuring a large 4.3-inch color LCD, leakage current measurement, PASS/FAIL comparator, calibration function, and high measurement accuracy, the UT5583 is an ideal solution for professional insulation testing.
| Specification | Details |
|---|---|
| Brand | UNI-T |
| Model | UT5583 |
| Product Type | Desktop Insulation Resistance Tester |
| Insulation Resistance Range | 10kΩ – 10TΩ |
| Test Voltage | 1V – 1000V DC (Programmable) |
| Measurement Parameters | Insulation Resistance & Leakage Current |
| Accuracy | <1MΩ: ±5% ≥1MΩ: ±1% ≥1GΩ: ±3% |
| Display | 4.3-inch True Color LCD |
| Display Type | Digital |
| Comparator Function | UFAIL / PASS / LFAIL |
| Data Storage | 1 Comparator Record |
| Calibration | Full Range Open Circuit Reset |
| Operating Temperature | 0°C – 40°C |
| Power Supply | AC 110V / 220V, 47–63Hz |
| Device Dimensions | 215 × 88 × 382.3 mm |
| Package Dimensions | 515 × 365 × 220 mm |
| Package Weight | 4.5 kg |
| Place of Origin | Jiangsu, China |







Specification | Details |
Model Number | UT516B |
Battery Included | No |
High-concerned Chemical | None |
Dimensions | 510 × 320 × 420 mm |
Testing Voltage | 12 kV |
Measuring Range | 10 TΩ |
Display Type | Digital Only |
DIY Supplies | Electrical |
Brand Name | UNI-T |
Origin | Mainland China |
Certification | None |
LCD Backlight:Clearly view test results in any lighting condition with the LCD backlight.
Memory Storage:Store test results in the tester memory for easy access and review.
Ut516b|Uni T Ut516b|High Voltage Range:Test up to 12kV with 6 selectable ranges for comprehensive insulation resistance measurement.
USB Data Transfer:Effortlessly transfer test data to a PC via USB, ensuring accurate records for analysis.
Comparative Measurement:Compare measurements to previous tests, aiding in maintenance and troubleshooting.
report
The UT516B is a digital high voltage insulation resistance tester with 6 ranges: 500V, 1000V, 2500V, 5000V, 10000V and 12000V.
Fine adjustment of voltage with 10% step at each range (except 12000V) is available.
Test data can be saved in the tester memory and transferred to a PC via the dedicated USB cable, or be transferred to a PC in real time.
The tester, with high performance and easy operation, is widely used in the measurement and maintenance of power equipment and power supply circuits.
Features:
1. AC/DC voltage
2. USB data transfer
3. Low battery indication
4. Data storage
5. LCD backlight
6. Polarization Index
7. Over-range alarm
8. 9999 Max display
9. Comparative measurement
10. Measurement time selection
Take notice: Battery was not included for air shipping, please prepare it by yourself.
Specifications of UT516B Insulation Resistance Tester
High Voltage Range: 500V to 12000V
Accuracy: ±(5%+3) at 500V to 2500V, ±(8%+3) at 5000V to 10000V, ±(10%+3) at 12000V
Memory: 9999 data sets
USB Communication: Yes
Battery Indicator: Yes
Polarization Index: Yes
|Uni T Ut516b|
**Advanced Measurement Capabilities**
The UNI-T UT516B High Voltage Insulation Resistance Tester is an essential tool for electrical professionals and DIY enthusiasts alike. With a versatile range of 500V to 12000V, this digital megohmmeter is equipped to handle a wide array of insulation resistance testing scenarios. Its high precision, with an accuracy of ±(5%+3) at 500V to 2500V, ±(8%+3) at 5000V to 10000V, and ±(10%+3) at 12000V, ensures reliable results for even the most critical measurements.
**Seamless Data Management and Transfer**
The UT516B's USB communication capability allows for quick and easy data transfer to a PC, enabling users to store and analyze test results with ease. The dedicated USB cable simplifies the process, making it a breeze to share data with colleagues or clients. Additionally, the tester's memory can store up to 9999 data sets, providing ample storage for extensive testing projects.
**User-Friendly Design and Functionality**
The UT516B is not only a powerful tool but also a user-friendly device. Its LCD backlight ensures clear visibility in low-light conditions, while the polarization index feature offers additional insights into the test results. The tester's design is compact and lightweight, making it suitable for use in a variety of environments. Moreover, the low battery indicator alerts users when it's time to replace the batteries, ensuring that the tester is always ready for use.
**Versatile Application and Safety**
The UNI-T UT516B High Voltage Insulation Resistance Tester is designed for use in electrical maintenance and power supply circuit testing. Its robust construction and safety features make it an essential tool for professionals working in the electrical field. Whether it's for routine maintenance or critical repair, the UT516B is the go-to device for reliable, precise insulation resistance testing.










Specification | Details |
Model Number | UT533 |
Brand Name | UNI-T |
Battery Included | No |
High-concerned Chemical | None |
Operating Mode | Auto Range |
Operating Temperature | 0 – 40 ℃ |
DIY Supplies | Electrical |
Certification | CE |
Origin | Mainland China |
DC Voltage | 1000V |
AC Voltage | 1000V |
Display Type | Digital Display |
report
Uni-T UT533 digital multimeter insulation resistance meter 2 Gigaohm 1000V 2 in 1 for electric cable motor transformer
Features of UT533 Insulation Multimeter 1. AC/DC voltage measurement 2. AC/DC current measurement 3. Insulation resistance measurement 4. Resistance & Capacity test 5. Frequency & Temperature test 6. 1000V output voltage 7. Double insulation design
Specifications | Range | UT533 |
Insulation resistance | 0.1MΩ~2GΩ | ±(5%+5) |
Output voltage | 50~1000V | – |
AC voltage (V) | 6V~1000V | ±(2%+3) |
DC voltage (V) | 6mV~1000V | ±(0.3%+4) |
AC Current | 60mA ~600mA | ±(1.5%+2) |
DC Current | 60mA ~600mA | ±(1.0%+2) |
Resistance (Ω) | 600Ω~40MΩ | ±(1.5%+3) |
Capacitance (F) | 10nF~100uF | ±(3%+5) |
Frequency (Hz) | 60Hz~1MHz | ±(0.1%+3) |
Temperature(鈩�) | -40鈩� ~ 537鈩� | ±(1%+10) |







