The Best HVAC Clamp Meter: Top 8 Models Reviewed

by John Sanderson

The best HVAC clamp meter is an essential tool for any technician looking to do air conditioning maintenance. These meters are used to measure voltage, current, and most importantly amperage. If you want the best reading possible, then it is important that you choose a quality meter that will last longer and give accurate readings every time. This article will provide information on 8 of the best HVAC clamp meters available on the market today!

Here Are The Top 3 HVAC Clamp Meter To Check At A Glance If You Are In A Hurry:

Product
IDEAL INDUSTRIES INC. 61-744 Clamp Meter 600 Amp AC with NCV, Voltage Indicator, CATIII for 600v
Clamp Meter, HVAC Meter with K-Type Thermocouple, Differential Temperature, True RMS Klein Tools CL450
Klein Tools CL320 Digital Clamp Meter, HVAC AC Auto-ranging 400A, AC/DC Voltage, TRMS, DC Microamps, Resistance, Frequency, NCVT, Temp, More
IDEAL INDUSTRIES INC. 61-744 Clamp Meter 600 Amp AC with NCV, Voltage Indicator, CATIII for 600v
Clamp Meter, HVAC Meter with K-Type Thermocouple, Differential Temperature, True RMS Klein Tools CL450
Klein Tools CL320 Digital Clamp Meter, HVAC AC Auto-ranging 400A, AC/DC Voltage, TRMS, DC Microamps, Resistance, Frequency, NCVT, Temp, More
Product
IDEAL INDUSTRIES INC. 61-744 Clamp Meter 600 Amp AC with NCV, Voltage Indicator, CATIII for 600v
IDEAL INDUSTRIES INC. 61-744 Clamp Meter 600 Amp AC with NCV, Voltage Indicator, CATIII for 600v
Product
Clamp Meter, HVAC Meter with K-Type Thermocouple, Differential Temperature, True RMS Klein Tools CL450
Clamp Meter, HVAC Meter with K-Type Thermocouple, Differential Temperature, True RMS Klein Tools CL450
Product
Klein Tools CL320 Digital Clamp Meter, HVAC AC Auto-ranging 400A, AC/DC Voltage, TRMS, DC Microamps, Resistance, Frequency, NCVT, Temp, More
Klein Tools CL320 Digital Clamp Meter, HVAC AC Auto-ranging 400A, AC/DC Voltage, TRMS, DC Microamps, Resistance, Frequency, NCVT, Temp, More

Top 8 Best HVAC Clamp Meter Reviewed

1

The Ideal 61-744 Clamp Meter 600 Amp AC is an all-purpose electrical test instrument that can be used to measure voltage, current, and resistance. The clamp meter features a tapered jaw design for reaching into tight spaces, auto/manual ranging, and a low battery indicator. The clamp meter also has an auto shut-off feature that turns the unit off after approximately 10 minutes of nonuse to help preserve your battery life.

2

This product is an electrical tester that measures AC/DC voltage up to 1000V, 600A AC Current, 60M Resistance, and DC millivolts and microamps. It has a CAT IV 600V and CAT III 1000V safety rating. The Amp Clamp with automatically ranging True Root Mean Squared (TRMS) measurement technology for accuracy provides accurate measurements of AC current and inrush current. There are two K-Type thermocouple ports for differential temperature measurements.

3

The Klein Tools CL320 Digital Clamp Meter is a high-performance digital clamp meter that provides you with the ability to measure AC/DC voltage, current, resistance, frequency, DC microamps, capacitance, and continuity. This versatile tool also includes an integrated non-contact voltage tester for testing live wires without having to touch them. The backlit LCD display allows you to see measurement results easily in low-light conditions. A test lead holder on the side of the clamp makes it easy for hands-free operation.

4

The SC-440 is a compact and rugged multimeter that delivers all the features you need to troubleshoot electrical circuits, test for continuity, and measure voltage and current. The SC-440 is designed to work in harsh environments including industrial plants, construction sites, or anywhere else you need a portable tool that will stand up to tough conditions.

5

Fieldpiece’s SC260 clamp multimeter is the most accurate and versatile digital multimeter on the market, featuring True RMS measurements for both AC/DC voltage and current. The SC260 features a large backlit display with an auto-off function to save battery life, as well as an ergonomic design that fits comfortably in your hand.

6

The Klein Tools 69140 K-Type Thermometer is a flexible lead thermometer that measures temperature from -4 to 212-degrees F (-20 to 100-degrees C). The thermometer clamps around pipes from 1/4 to 1-3/8 Inch diameter (up to 3.5 cm) and has a flexible lead with a length of 40 inches (102 cm). This K-type thermometer works with any digital multimeter that measures temperature, as well as any clamp meter that measures temperature.

7

The UEi DL489 Digital Clamp Meter is a top-of-the-line True RMS AC/DC clamp meter designed for industrial and commercial applications. The DL489 features an easy-to-read backlight dual display with a magnetic mount, hands-free operation, work light, test lead storage, and a temperature differential feature. The DL489 also includes a built-in flashlight that can be used to illuminate dark areas or as a visual warning device.

8

The Fluke 902 FC HVAC True-RMS Clamp Meter is the perfect choice to measure gas and flame temperature, voltage, and current of non-linear signals. It offers an extended resistance range for measuring thermistors up to 60 kΩ, 200 µA dc current measurements to measure flame rod, and capture flue gas temperature. The Fluke connects your meter to your phone through Bluetooth so you can get more done faster and safer.

Buying Guide For The Best HVAC Clamp Meter

1. What Type of Meter Do You Need?

HVAC service technicians need a variety of different types of meters depending upon what they need to test and calibrate. While many meters can be used for a number of applications, not all meters can be used everywhere. Some common places where a technician may require a meter include electrical panels, homes, businesses, or industrial equipment. Once the intended usage location has been determined it is time to identify what type of test or measurement needs to be made with the meter. This will help determine which type of HVAC clamp meter is required for accurate readings.

2. What Are You Measuring?

Knowing what needs to be measured will help in two ways when it comes to choosing the right meter for testing HVAC equipment. First, knowing whether or not there are any restrictions on measurements is important because some meters are not able to make certain measurements. For example, an AC/DC clamp meter may not be capable of making insulation resistance tests — this means that it would not be a good choice for measuring the quality of electrical panels. Second, knowing exactly what needs to be tested helps in determining how accurate the measurement needs to be with respect to the environment in which the test will take place. This will in turn help determine how much error can be allowed and whether or not a meter will need to be calibrated in order to get accurate readings.

3. What Are the Different Types of Clamp Meters?

There are four main types of clamp meters, each designed for a specific application or type of measurement: AC/DC Voltage, Resistance, Capacitance, and Temperature. See below for more information on what each style is best suited for:

AC/DC Voltage – an AC/DC voltage clamp meter allows the technician to make accurate measurements using either alternating or direct current (with possible restrictions depending upon the model used). These meters come in two different styles — standard and push-button start. The “push-button” style of voltage-clamp meters starts reading at zero when it is wrapped around the intended test point, making the initial measurement easier — especially in difficult-to-reach places. This style of clamp meter is also well suited for use with a circuit/breaker simulator which provides a known load instead of measuring the voltage drop across individual devices in an electrical panel. Resistance – These meters are used to make accurate measurements when testing single-phase circuits and their associated loads. These measurements include current flowing through both three-phase and single-phase systems using either alternating or direct current (with possible restrictions depending upon the model used). This type of clamp meter should not be used on high voltage equipment due to the potential for damage to the instrument’s internal components if it were accidentally connected backward or shorted out. Capacitance – When determining whether there is continuity in an electrical circuit, a capacitance clamp meter should be used. These meters can also be used to measure the capacitance of a capacitor or the leakage current of a capacitor. Temperature – A temperature clamp meter is designed to measure the temperature of an object by reading the amount of heat that is being emitted from it. This meter can also be used to measure the surface temperature of an object or the air temperature in a specific location.

4. What Are Some Other Features That You May Want?

In addition to choosing the right type and size of HVAC clamp meter, there are other features that you may want to consider before making your purchase:

-Auto-ranging: this feature automatically sets the meter to the correct range for the measurement being taken, eliminating the need to manually select the range each time. -Data logging: this feature allows the user to record measurements for later analysis. -Backlight: a backlight makes it easier to see readings in low-light or dark environments.

5. What Is the Cost of the Meter?

When purchasing an HVAC clamp meter, consider not only the cost of the meter itself but also the cost of replacement batteries and any other accessories that may be required. Also, keep in mind that some meters come with a warranty while others do not.

3 Benefits Of HVAC Clamp Meter

1. Accurate measurement of current in appliances

Many HVAC systems today rely on electricity to operate. A clamp meter with an AC input range is typically used to measure currents up to 600 amps. An RMS meter can also be useful since it measures both AC and DC currents with the same accuracy since the waveforms are rectified internally. This is especially useful when measuring circuits like wall outlets (120 volts AC) and air conditioners (240 volts AC).

2. Determining voltage drops in wiring

Voltage drops can occur when there is high resistance in the wiring. This will cause a loss of energy, heat up the wiring, and eventually lead to a failure. By using a clamp meter with voltage measurement capabilities, you can detect these voltage drops before they become a problem.

3. Fault detection

Clamp meters are also very useful for fault detection. They can help you find open circuits, short circuits, and ground faults. This can save you time and money by helping you troubleshoot problems before they become bigger issues.

Conclusion

If you are looking for a clamp meter to measure the air pressure of your HVAC system, there are many different models out there. It can be difficult to find which one is best suited for your needs so we have compiled this list of the top 8 models available on Amazon that will suit any budget and every need. Our reviews should help you decide which model suits you best! Have fun shopping around and don’t forget to leave us feedback about your favorite clamp meter in the comment section below!

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