Klein Tools CL700 is a versatile, auto-ranging TRMS clamp meter designed for electricians, offering precise measurements of AC current, voltage, and more;
Overview of the CL700 Clamp Meter
The Klein Tools CL700 is a robust and reliable digital clamp meter engineered to meet the demanding needs of electrical professionals. This automatically ranging, true root mean square (TRMS) instrument excels at non-contact AC current measurement via its clamp, eliminating the need to break the circuit. Beyond current, the CL700 accurately measures AC/DC voltage, resistance, and provides continuity testing.
Furthermore, it features diode testing, frequency, and capacitance measurement capabilities, all accessible through its included test leads. Temperature readings are possible with a compatible thermocouple probe (sold separately). Designed with electrician input, the CL700 boasts innovative features for enhanced efficiency and safety on the job site.
Key Features and Benefits
The Klein Tools CL700 delivers exceptional performance with its True RMS (TRMS) measurement, ensuring accuracy across various waveforms. Auto-ranging simplifies operation, automatically selecting the appropriate measurement range. Its 6000 count display provides clear and precise readings. The clamp meter’s jaw opening of 1-3/8 inches accommodates a wide range of conductors.
Safety is paramount, with a Cat IV 600V / Cat III 1000V safety rating. Benefits include non-contact current measurement, versatile testing functions, and a durable construction built for field use. The CL700 streamlines troubleshooting and enhances productivity for electrical work.

Technical Specifications
The CL700 boasts a 1000 VAC/VDC capacity, 600A current measurement, 60 MOhm resistance, and operates within a 50 to 400 Hz frequency range.
Voltage Measurement Capabilities (AC/DC)
The Klein Tools CL700 excels in voltage measurement, accurately handling both AC and DC voltages. It can measure AC voltage up to 1000V, providing reliable readings for a wide range of electrical systems. For DC voltage, the CL700 also offers a 1000V maximum range, making it suitable for battery-powered circuits and other DC applications.
Accuracy is paramount, with the meter offering /-2.5% digit accuracy for DC voltage measurements and /-1.5% for AC voltage. This precision ensures dependable results for critical electrical work. The auto-ranging feature simplifies operation, automatically selecting the appropriate range for the input voltage, eliminating manual adjustments and potential errors. This capability makes it a user-friendly tool for both experienced professionals and those newer to electrical testing.
Current Measurement Capabilities (AC)
The CL700’s primary function is AC current measurement via its clamp, capable of reading up to 600A. This non-contact method allows for safe and convenient current readings without breaking the circuit. The clamp jaw opening is 1-3/8 inches, accommodating a variety of conductor sizes. Accuracy for AC current measurements is specified as /-1.5% digit, ensuring reliable readings for load analysis and troubleshooting.
The True RMS (TRMS) technology employed by the CL700 delivers accurate readings even with non-sinusoidal waveforms, common in modern electrical systems. Combined with the auto-ranging function, the CL700 simplifies current measurement, automatically selecting the appropriate range for optimal precision and ease of use. This feature is invaluable for efficient and accurate electrical diagnostics.
Resistance, Continuity, and Diode Testing
Beyond current and voltage, the CL700 offers essential testing capabilities including resistance, continuity, and diode testing, accessed via the included test leads. Resistance is measured up to 60 MOhm, useful for verifying circuit integrity and component values. The continuity function provides an audible beep when resistance is below a certain threshold, quickly identifying open or short circuits.
Diode testing allows for checking the functionality of diodes and other semiconductor devices. These features expand the CL700’s utility beyond basic electrical measurements, making it a versatile tool for a wider range of troubleshooting tasks. Accuracy for resistance measurements is /-2% + 5 digits, ensuring reliable results.

Operating Instructions
To begin, insert the battery and power on the CL700. Select the desired measurement mode using the function dial, and connect the test leads appropriately.
Powering On and Off
To power on the Klein Tools CL700, simply rotate the rotary dial from the “OFF” position to any measurement function. The LCD screen will illuminate, displaying the selected mode and battery status. A self-test will briefly occur upon startup, confirming the meter’s functionality.
To power off the device, rotate the dial back to the “OFF” position. The display will turn off, conserving battery life. The CL700 also features an auto-power off function, activating after a period of inactivity – typically around ten minutes – to further extend battery duration. This feature can be disabled within the settings menu for continuous operation when needed. Always ensure the meter is switched off when not in use and during storage.
Selecting Measurement Modes
The Klein Tools CL700 utilizes a rotary dial to select the desired measurement mode. Rotate the dial to align with the appropriate function: AC/DC Voltage (V), AC Current (A – using the clamp), Resistance (Ω), Continuity, Diode Test, Frequency (Hz), and Capacitance (µF).
Each selection will update the LCD display to reflect the chosen mode and corresponding units. For AC Current measurements, ensure the clamp jaws are open and surrounding the conductor. For voltage, resistance, and other test-lead based measurements, insert the test leads into the appropriate input jacks. The meter automatically ranges, eliminating the need for manual adjustments in most cases.
Using the Test Leads
The Klein Tools CL700 requires proper test lead connection for accurate voltage, resistance, diode, and capacitance measurements. Insert the black test lead into the COM (common) jack and the red test lead into the VΩmA jack. Ensure a firm connection for reliable readings.
When measuring voltage, connect the leads in parallel with the circuit. For resistance and continuity, disconnect power to the circuit before connecting the leads in series with the component. The continuity function emits an audible beep when resistance is below a certain threshold. Always exercise caution when working with live circuits.

Advanced Features
The CL700 boasts True RMS, auto-ranging, frequency, and capacitance measurement capabilities, providing electricians with comprehensive diagnostic tools for various electrical applications.
True RMS (TRMS) Measurement Explained
True RMS (Root Mean Square) measurement is crucial for accurately assessing non-sinusoidal AC waveforms, commonly found in modern electrical systems. Traditional meters may provide inaccurate readings with these complex signals.
The Klein CL700 utilizes TRMS technology to calculate the effective value of both sinusoidal and non-sinusoidal AC waveforms, delivering reliable results regardless of the signal’s shape. This is particularly important when dealing with variable frequency drives, electronic ballasts, or any device generating distorted AC current or voltage.
By providing a precise RMS value, the CL700 ensures accurate power calculations and reliable troubleshooting, enhancing safety and efficiency for electrical professionals. It avoids the errors inherent in averaging methods used by simpler meters.
Auto-Ranging Functionality
The Klein Tools CL700 incorporates an intelligent auto-ranging feature, simplifying the measurement process for users. This eliminates the need for manual selection of measurement ranges, saving time and reducing the potential for errors.
The meter automatically selects the appropriate range for voltage, resistance, frequency, and capacitance, ensuring optimal accuracy for each measurement. This is particularly beneficial when dealing with unknown or varying electrical signals.
Auto-ranging enhances usability, especially in dynamic work environments, allowing electricians to focus on the task at hand rather than meter adjustments. It contributes to faster, more efficient, and more reliable electrical diagnostics.
Frequency and Capacitance Measurement
The Klein Tools CL700 extends beyond basic electrical measurements, offering both frequency and capacitance testing capabilities. Frequency measurement, ranging up to 400 Hz, is valuable for analyzing AC signals and identifying potential power quality issues.
Capacitance measurement allows for the assessment of capacitor health, crucial in various electrical circuits and equipment. This feature aids in diagnosing faulty components and ensuring optimal circuit performance.
These advanced functions, accessible via test leads, broaden the meter’s utility, making it a comprehensive tool for electricians tackling diverse diagnostic and maintenance tasks.

Safety Information
The CL700 is rated Cat IV 600V / Cat III 1000V, ensuring user protection in various electrical environments; always follow standard safety precautions.
Safety Ratings (Cat IV 600V / Cat III 1000V)
The Klein Tools CL700 clamp meter boasts robust safety ratings, crucial for working with diverse electrical systems. It’s categorized as Cat IV 600V, meaning it’s suitable for measurement on the supply side of electrical distribution, like service entrance panels.
Furthermore, the CL700 is also rated Cat III 1000V, appropriate for measurements in fixed installations, such as distribution boards. These ratings signify the meter has undergone rigorous testing to withstand high-energy transient events.
Understanding these categories is vital; always ensure the meter’s rating matches or exceeds the environment’s voltage levels for safe and reliable operation. Prioritize personal safety by adhering to these guidelines.
General Safety Precautions
When using the Klein Tools CL700, always prioritize safety. Never exceed the meter’s maximum ratings, as this could lead to electric shock or damage. Inspect test leads for any insulation damage before each use, replacing them if necessary.
Avoid using the meter in wet or damp environments, and never work on energized circuits alone. Disconnect power before measuring resistance or continuity. Always maintain a safe working distance from exposed conductors.
Wear appropriate personal protective equipment (PPE), including safety glasses and insulated gloves. Be aware of your surroundings and potential hazards. Read and understand the entire manual before operation.

Maintenance and Care

To ensure longevity, replace batteries promptly when the low battery indicator appears and clean the CL700 with a damp cloth when necessary.
Battery Replacement
The Klein Tools CL700 operates on batteries, and a low battery indicator signals the need for replacement. To access the battery compartment, locate it on the rear of the meter. Typically, a Phillips head screwdriver is required to open the compartment cover. Insert new batteries, ensuring correct polarity as indicated inside the compartment – positive (+) and negative (-) terminals must align correctly.
Use only batteries of the specified type, usually AAA or AA, to avoid damaging the meter. After replacing the batteries, securely close the compartment cover. Improper battery installation can lead to inaccurate readings or meter malfunction. Dispose of used batteries responsibly, following local regulations for battery recycling or disposal.
Cleaning and Storage
Maintaining your Klein Tools CL700 ensures its longevity and accuracy. Periodically clean the meter’s exterior with a damp cloth, avoiding abrasive cleaners or solvents which could damage the casing or display. Never immerse the meter in water or any other liquid. Ensure the meter is completely dry before storing it.
When not in use, store the CL700 in a dry, dust-free environment, away from extreme temperatures and direct sunlight. A protective case is recommended for added protection during transport or storage. Properly store the test leads to prevent damage to the insulation. Regular cleaning and careful storage contribute to reliable performance over time.

Troubleshooting
Addressing common issues with the CL700 involves checking battery levels, test lead connections, and understanding display error codes for quick resolution.
Common Issues and Solutions
Issue: No display reading. Solution: Verify the battery is correctly installed and has sufficient charge. Try replacing the battery with a fresh one. Ensure the meter is powered on and set to the correct measurement mode.
Issue: Inaccurate readings. Solution: Confirm test leads are securely connected to both the meter and the circuit being tested. Check for damaged or worn test leads and replace if necessary. Ensure the clamp jaws are fully closed around the conductor.
Issue: Meter doesn’t auto-range. Solution: While the CL700 is auto-ranging, sometimes manual adjustments are needed. Briefly press the range button to cycle through available ranges. If the problem persists, consult the full manual.
Issue: Display shows “OL”. Solution: “OL” indicates an overload condition. Reduce the current or voltage being measured, or select a higher range on the meter.
Display Errors and Their Meanings
“OL” (Overload): Indicates the measured value exceeds the meter’s maximum range. Select a higher range or reduce the input signal. “Lo.Bt” (Low Battery): Signals that the battery voltage is insufficient. Replace the battery immediately to ensure accurate measurements.
“Open” (Open Circuit): Displayed during resistance or continuity testing when the test leads are not making a complete circuit. Verify lead connections. “Fuse” (Fuse Blown): Indicates an internal fuse has blown, typically due to an overload. Do not attempt to repair; contact Klein Tools for service.
No Display/Blank Screen: Suggests a power issue – check battery, connections, or potential internal fault. Err: A general error code; consult the full manual or Klein Tools support for specific troubleshooting steps. Always prioritize safety when investigating error messages.

Accessories and Compatibility
The CL700 includes test leads, a thermocouple probe, and a carrying case. Compatible thermocouple probes expand temperature measurement capabilities.
Included Accessories
The Klein Tools CL700 clamp meter package provides several essential accessories to facilitate immediate and comprehensive electrical testing. Included are high-quality test leads, designed for secure connections and accurate voltage, resistance, and continuity measurements. A type K thermocouple probe is also supplied, enabling temperature readings for a broader range of applications.
Furthermore, the kit incorporates a durable carrying case, offering protection during transport and storage, ensuring the meter and its accessories remain in optimal condition. The case features designated compartments for organized storage, preventing damage and streamlining setup. These included accessories enhance the CL700’s usability and value, providing a complete solution for professional electricians and technicians.
Compatible Thermocouple Probes
The Klein Tools CL700 clamp meter is designed for use with standard Type K thermocouple probes, expanding its measurement capabilities to include temperature readings. While a Type K probe is included in the standard kit, the CL700 supports a variety of compatible probes offering different temperature ranges and physical configurations.
Users can select probes with varying lengths, tip styles (e.g., exposed junction, shielded), and handle materials to suit specific applications. Ensure the chosen probe features a standard Type K connector for seamless integration with the CL700. Utilizing compatible probes allows for versatile temperature measurements in HVAC, industrial, and electrical troubleshooting scenarios.

Ordering Information
The Klein Tools CL700 can be purchased through authorized Klein Tools distributors, online retailers like IC-Components, and various electrical supply houses.
Where to Purchase the CL700
Finding the Klein Tools CL700 is readily achievable through a network of authorized distributors dedicated to serving professionals and DIY enthusiasts alike. IC-Components stands out as a trusted online source, offering competitive pricing and a streamlined ordering process for this essential tool.
Beyond online options, numerous electrical supply houses and hardware stores nationwide stock the CL700, providing convenient access for immediate needs. Klein Tools’ official website also features a store locator to pinpoint nearby retailers.
When sourcing the CL700, ensure the vendor is authorized to guarantee product authenticity and warranty coverage. Checking for current promotions and availability is also recommended to secure the best possible deal;
Part Numbers and Availability
The Klein Tools CL700 is identified by manufacturer part number CL700, and is frequently listed as RS Stock number 70811166 by distributors like RS Components. Availability can fluctuate based on demand, but generally, the CL700 maintains consistent stock levels at major retailers and online suppliers.
IC-Components currently indicates “In Stock: 5” as of today, April 14, 2026, suggesting reasonable immediate availability. However, it’s always prudent to verify stock with the specific vendor before finalizing a purchase.
Checking Klein Tools’ official website or contacting their customer support can provide the most up-to-date information regarding part numbers and current inventory levels across their distribution network.