Atal Tools

•  Large 9999 display with 30-segment analog bar graph
• Test Voltages: 500V, 1000V, 2500V, 5000V
• Test Voltage Accuracy: 0% to 20%
•  PI/DAR measurements
•  Comparison, upper and lower limit functions
•  Continuous measurement mode
•  Auto power off
• 18-group data storage
•  Backlight
•  Auto current discharge and high-voltage output alarm
•  Time measurement mode, auto measure within 15 minutes
•  Low battery and over range indications

UT5583 insulation resistance tester is controlled by a high-performance processor and has a 4.3-inch TFT LCD display. The output voltage can be set arbitrarily from 1V to 1000V to meet most testing needs. The insulation resistance measurement range can reach 10kΩ~10TΩ, the sampling rate is up to 30ms/time, and the rich communication interfaces provide the optimal testing solution for automated production.

• Adopt 4.3-inch TFT-LCD display and simple panel operation
• Dual display of insulation resistance and leakage current
• Correction function, full range open circuit clearing
• Select digit display function (5 digits/4 digits)
• Sorting judgment sound setting function
• U disk data recording
• Rich interfaces, supporting SCPI and Modbus protocols
• Real-time monitoring of output voltage
• Charging time, test time and discharge time are adjustable
• Contact check function for capacitive materials
• Comparator function to realize qualified and unqualified sorting
• Quick discharge function
• Can store 100 test files and supports U disk file access.

UT500 series insulation testers are used to measure the insulation resistance of electrical equipment and household appliances. This is done by measuring the insulation resistance between electrical circuits or between circuits and ground. Itt can measure insulation resistance, AC voltage, low resistance, PI (Polarization Index) and DAR (Dielectric Absorption Ratio)

Test Voltage: 500V/1000V/2500V

2000 count LCD display, overload indication, backlight

AC voltage measurement, auto power off

Auto discharge

Continuous measurements mode, red warning light and buzzer function

Continuous low resistance measurement

PI and DAR measurement, auto resistivity calculation

Low resistance returning to zero function to improve accuracy

EN61557-1:2007, EN61557-2:2007, EN61557-4:2007

• Range: 6250 IN 5kV-200G Digital Insulation Tester
• 3 ½ Digits LCD Display, 1999 Counts, Backlight
• Data Hold
• Auto Ranging
• 3 in 1 Insulation Resistance, Phase Testing & Voltage Testing
• Standard Accessories : Carrying case, Test Leads ,Manual

UT505 series handheld true RMS insulation resistance testers combine features of a digital multimeter and insulation resistance tester. Aside from the typical multimeter functions, these meters can also measure insulation resistance, PI, DAR, and automatically calculate resistance ratio to determine the insulation status.
Features:

Auto power off

LCD backlight

High voltage output alarm

99-group data storage

Data hold

India’s Most Economical Multi Voltage Range Insulation Tester Including Multimeter

• Test Voltages 100/250/500/1000
• Insulation upto 2000 Mega Ohm
• Large 6000 count Display with Bargraph
• Hold Function with Backlight
• AC / DC Volt, Resistance, Capacitance, Diode, Continuity
• Test Probes with Clips / Carry Bag

UNI-T’s UT501A is a 2000-count auto range digital insulation resistance tester with low resistance test, high voltage and low battery indication.
- Test Voltage: 100V/250V/500V/1000V
- Display Count: 1999, LCD Backlight
- Auto Range
- Low Battery Indication
- Alarm Indication and Buzzer
- High Voltage Indication
- Overload Indication
- Auto Discharge
- Test Voltage Vice Display

UT513C are digital high-voltage insulation resistance testers with high-voltage output ranges of 250V, 500V, 1000V, 2500V, and 5000V. They are commonly used and essential instruments for power, telecommunications, meteorology, computer rooms, oil fields, electromechanical installation and maintenance, and power supply departments of industrial and mining enterprises.

• Output voltage: Up to 5kV
• PI & DAR measurement
• Automatic leakage current display
• Stepping voltage: 10% of the range
• Comparison function
• Timer measurement
• Data storage: 999 sets
• PC software analysis: via USB cable
• Automatic discharge
• High voltage output alarm function
• Rechargeable lithium battery 14.8V, 5200mAh
• Overvoltage category: CAT IV 600V

• Measurement Voltage: 250V / 500V / 1000V
• Insulation Resistance: 0.25M~40G
• 3/4 Digit MAX, Display:3999
• Over Load Protection
• Back Light, Function characters Indication
• Exact Insulation Test Voltage Display

The UNI-T UT513B is a professional-grade 5kV digital insulation resistance tester engineered for electrical engineers, maintenance professionals, and contractors who demand precise measurements and comprehensive diagnostics for high-voltage equipment. With its innovative dot matrix display and measurement capability up to 2TΩ, the UT513B represents a significant advancement in portable insulation testing technology.

Featuring multi-voltage testing capabilities, advanced timing functions, and integrated analysis tools like PI and DAR measurements, the UT513B delivers laboratory-grade precision in a field-ready instrument. The rechargeable lithium battery provides extended operation for comprehensive testing sessions, while the CAT IV 600V safety rating ensures maximum protection in industrial environments.

Whether you're testing motors, transformers, cables, or switchgear, the UNI-T UT513B combines powerful diagnostic capabilities with user-friendly operation to streamline your testing process and provide the insights needed for confident decision-making about critical electrical systems.

Key Features

• High-voltage output up to 5kV with precise control
• Ultra-wide insulation resistance measurement range up to 2TΩ
• Selectable test voltages: 250V, 500V, 1000V, 2500V, and 5000V
• Dot matrix LCD screen for enhanced data visualization
• PI (Polarization Index) and DAR (Dielectric Absorption Ratio) testing capabilities
• Automatic leakage current display during measurements
• 10% stepping voltage function for detailed insulation profiling
• Timer measurement for standardized testing protocols
• Comparison function for quick pass/fail assessment
• Extensive data storage for 999 measurement sets
• USB interface for PC data transfer and analysis
• Automatic discharge function for safety after testing
• High voltage output alarm with visual indicator
• 14.8V 5200mAh rechargeable lithium battery
• CAT IV 600V safety rating for industrial environments

UT510 series testers can measure insulation resistance of large transformers, generators, high-voltage motors and more. UT510 series can also measure PI, DAR and other important specifications. Measured data can then be analyzed through PC software.

Test Voltage: 100V/250V/500V/1000V
10Gohm
Large 9999 display with 30-segment analog bar graph

UT503PV PV insulation resistance tester has the function of measuring photovoltaic live insulation resistance, ordinary insulation resistance function (non-live), AC and DC voltage automatic recognition measurement and so on

Features of UT503PV PV Insulation tester

• High output voltage: DC 1000V
• UTD live test: DC 1000V
• Insulation resistance (PV+IR): 4000MΩ
• Voltage measurement: 1000V DC & 600V AC
• Auto discharge
• Stepping voltage
• Time measurement
• Compare function (IR)
• High voltage alarm
• Data communication: USB cable + Bluetooth app
• Lithium battery
• Portable & Convenient

UT590 series multifunction testers mainly test RCD, loop/line impedance, earth resistance continuity, insulation resistance and AC/DC voltage. They are applicable to electrical installation, inspection and repair at home or in construction industry.

Features

• 9999-count LCD display with analogue bar
• 250V~1000V DC insulation resistance test
• 200mA earth-resistance continuity test
• Loop impedance/Prospective Fault Current (PFC)/Prospective Short Current (PSC) test
• Lock test
• RCD trip time test and the data storage with one key
• Full/Half wave and count downing (30s) test mode selectable
• 0°/180° phase angle option to detect the fastest trigger time
• Trip current test of RCD trip time X2
• RCD trip trigger current test
• Phase sequence and missing test
• AC/DC voltage auto check and test
• Connection check with status real-time display
• White backlight; auto power off

The Agam AIT 501 is the compact insulation resistance tester with diagnostic features like PI, DAR. When carrying out insulation resistance measurements this device uses test voltages of 500V, 1000V, 2500V and 5000V. At 500V this tester can carry out insulation resistance measurements from 1MOhms to 20GOhms, it carries out this measurement at 5MOhms to 1000GOhms. The tester can also be used to carry out AC/DC voltage measurements and low resistance testing. The AIT 501 is an auto-ranging device and will automatically choose the applicable range depending on the test. It also includes a large, backlit LCD screen, auto power down function when left idle and includes a USB interface for using the tester to download data to PC. To accompany USB connectivity the AIT 501 also includes data logging capabilities. When displaying testing results the AIT 501 uses both numerical and analogue bar graph representation of the test results. It also allows users to carry out comparisons, polarisation index calculations and dielectric absorption calculations. This insulation resistance tester is CAT III 600V, EN 61010-1 and EN 61326-1 compliant. An ideal tool for Insulation testing designed smartly.

UT590 series multifunction testers mainly test RCD, loop/line impedance, earth resistance continuity, insulation resistance and AC/DC voltage. They are applicable to electrical installation, inspection and repair at home or in construction industry.

Features

• 9999-count LCD display with analogue bar
• 250V~1000V DC insulation resistance test
• 200mA earth-resistance continuity test
• Loop impedance/Prospective Fault Current (PFC)/Prospective Short Current (PSC) test
• Lock test
• RCD trip time test and the data storage with one key
• Full/Half wave and count downing (30s) test mode selectable
• 0°/180° phase angle option to detect the fastest trigger time
• Trip current test of RCD trip time X2
• RCD trip trigger current test
• Phase sequence and missing test
• AC/DC voltage auto check and test
• Connection check with status real-time display
• White backlight; auto power off

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.

• AC/DC voltage
• USB data transfer
• Low battery indication
• Data storage
• LCD backlight
• Polarization Index
• Over-range alarm
• 9999 Max display
• Comparative measurement
• Measurement time selection

MC 941, resistance: 0 to 1000M ohms, voltage: 500 volt DC.

• Single person push button operation
• High accuracy 5 percent of indicated value in effective range
• Scale Length: 80 millimeters
• ABS resin yellow case with acrylic meter cover
• Meets requirement of IEC1010, Installation category II, 1000V Phase Earth

• Range: 6250 IN 5kV-200G Digital Insulation Tester
• 3 ½ Digits LCD Display, 1999 Counts, Backlight
• Data Hold
• Auto Ranging
• 3 in 1 Insulation Resistance, Phase Testing & Voltage Testing
• Standard Accessories : Carrying case, Test Leads ,Manual

UT501C Insulation Resistance Tester, with their new design, large scale integrated circuit and digital circuit, is utilized to measure insulation resistance, alternating voltage and other parameters. The tester has features of complete functions, high accuracy, stable performances, comfortable and reliable operation. The tester is used in maintenance, test and verification for various electrical equipment and is applicable to measure insulation resistance of transformer, motor, cable, switch, electric appliances, etc.

•  Auto power off
• Self-lock funciton
• Overrange indication
• Backlight function

DIT 918, resistance: 2.5kV - 20 G Digital Insulation Tester
High Accuracy for Insulation Measurement and for AC Voltage Measurement

Overload Protect up to AC 1200 V for 10 Seconds
AC 8320 V With Stand Voltage for 5 Seconds