ZOYI ZT-1000R Insulation Tester and True RMS Multimeter

What Is the ZOYI ZT-1000R?

The ZOYI ZT-1000R is a professional digital insulation resistance tester, also known as a megohmmeter, combined with a True RMS digital multimeter.

It is designed for checking insulation resistance in cables, motors, appliances, fixed electrical installations and electrical equipment. It also provides practical multimeter functions for voltage, resistance, continuity and general electrical diagnostics.

Browse more models in the ZOYI insulation tester range.

Key Features of the ZOYI ZT-1000R

Why Insulation Testing Matters

Electrical insulation naturally deteriorates over time due to heat, moisture, vibration, dust, contamination, mechanical stress and age. Poor insulation can allow leakage current to flow where it should not, creating safety risks and equipment problems.

The ZT-1000R helps identify insulation faults early, improving safety and reducing the risk of costly failures.

For a beginner overview, read: What Is an Insulation Tester?

Where the ZT-1000R Can Be Used

The ZOYI ZT-1000R is suitable for electrical inspection, maintenance and fault-finding tasks where insulation resistance must be checked before energising or returning equipment to service.

How to Use the Insulation Test Function

The exact procedure depends on the installation, equipment and local standards, but the basic testing process is similar for most insulation resistance tests.

Step 1: Isolate the Circuit

Make sure the circuit is powered off and safely isolated. Verify dead using a suitable voltage tester before connecting the insulation tester.

Step 2: Disconnect Sensitive Equipment

Disconnect electronic devices, LED drivers, dimmers, appliances, control boards, SPD units and other equipment that may be damaged by insulation test voltage.

Step 3: Select the Correct Test Voltage

Select the correct insulation range, such as 250V, 500V or 1000V, depending on the circuit, equipment and testing requirement.

Step 4: Connect the Test Leads

Connect the test leads between conductors or between conductor and earth, depending on the required test.

Step 5: Press the Test Button

Press and hold the test button according to the user manual. The tester applies the selected test voltage and measures the insulation resistance value.

Step 6: Read the Result

The result is displayed in resistance units such as MΩ or GΩ, depending on the reading. Higher values normally indicate better insulation condition.

Step 7: Allow the Circuit to Discharge

After testing, allow the circuit to discharge before touching conductors or disconnecting leads. Many insulation testers discharge automatically, but safe working practice is still essential.

For a full procedure, read: How to Perform an Insulation Resistance Test Safely.

Understanding Insulation Resistance Results

Insulation resistance values depend on the circuit type, cable length, equipment condition, environment, connected loads and local standards. Always follow the correct requirement for the system being tested.

ZT-1000R vs a Standard Insulation Tester

Many standard insulation testers focus only on insulation resistance testing. The ZOYI ZT-1000R adds practical multimeter functionality, making it more flexible for daily diagnostic work.

For a detailed comparison, read: Insulation Tester vs Multimeter.

Who Is the ZOYI ZT-1000R For?

What Is Included in the Box?

Why Buy from ZOYI UK?

Buying from the official ZOYI UK store gives you genuine product support, UK-based service and access to manuals, downloads and product assistance.

Related ZOYI Tools and Guides

Conclusion: Is the ZOYI ZT-1000R Right for You?

The ZOYI ZT-1000R is a practical choice for users who need both insulation resistance testing and digital multimeter functions in one portable device.

Its selectable insulation test voltages, high-resistance measurement capability, PI/DAR functions, True RMS multimeter mode and rechargeable design make it suitable for electricians, maintenance engineers, facilities technicians and professional diagnostic work.

For cable testing, motor checks, electrical installation diagnostics and insulation safety testing, the ZT-1000R gives users a capable 2-in-1 tool for both insulation and everyday electrical measurements.