CDM-20

The Clarke CDM-20 Digital Multimeter is an essential tool for electricians, technicians, and electronics hobbyists. This multimeter is designed to deliver accurate and reliable measurements for various electrical parameters, making it an indispensable device for troubleshooting and maintenance tasks.

The CDM-20 is a 2000-count digital multimeter, which means it can measure current up to 20A and voltage up to 2000V. It features an easy-to-read LCD display that shows the measurement value, unit, and battery status. The multimeter also has a backlight function to ensure clear visibility in low-light conditions.

One of the standout features of this multimeter is its auto-ranging function. This feature automatically selects the appropriate measurement range, eliminating the need to manually set the range for each measurement. It also reduces the risk of measurement errors caused by incorrect range settings.

The CDM-20 comes with various test leads and probes, including a test lead set with a fuse holder and a capacitance probe. It also has a data hold function, which allows users to lock in the measurement value on the display for a few seconds, making it easier to record readings.

The multimeter is built with durability in mind, featuring a rugged case that can withstand drops and impacts. It also has a protective rubber boot to safeguard the device from water and moisture. The CDM-20 is compliant with safety standards, including CAT III 600V and CAT IV 300V, making it safe to use in a variety of electrical environments.

The Clarke CDM-20 Digital Multimeter is an essential tool for anyone working with electrical systems. Its accuracy, ease of use, and rugged design make it a reliable and trustworthy companion for troubleshooting, maintenance, and repair tasks.

The Clarke CDM-20 is a digital multimeter (DMM) that is widely used for various electrical measurements. Here are some pros and cons of buying this particular multimeter:

1. High Accuracy: The Clarke CDM-20 offers high accuracy with a maximum error of (0.1% 2) at 25 C for most measurements.

2. Wide Measuring Range: It has a wide measuring range that covers DC voltage up to 1000V, AC voltage up to 750V, resistance up to 2000M , and current up to 20A.

3. Auto and Manual Ranging: It offers both auto and manual ranging, making it easier to take measurements quickly and accurately.

4. Backlit Display: The backlit display makes it easier to read measurements in low-light conditions.

5. Safety Features: It has safety features such as overload protection, overvoltage protection, and a fuse to protect against electrical surges.

6. Durable Design: The Clarke CDM-20 has a durable design with a rubberized housing and a large probe tip that can withstand rough handling.

1. Size and Weight: The Clarke CDM-20 is larger and heavier than some other DMMs, making it less portable.

2. Lack of Special Functions: It does not have some of the special functions found on more advanced DMMs, such as capacitance measurement or frequency measurement.

3. Price: The Clarke CDM-20 is more expensive than some other entry-level DMMs.

In conclusion, the Clarke CDM-20 is a high-quality digital multimeter that offers accuracy, a wide measuring range, and safety features. However, it is larger and heavier than some other options and is more expensive than entry-level DMMs. If you require a multimeter for basic electrical measurements and are willing to pay a higher price for a durable and accurate instrument, then the Clarke CDM-20 is a good choice. However, if you need a more portable or feature-rich multimeter, then you may want to consider other options.

If you are looking for a reliable and accurate digital multimeter for basic electrical measurements, then the Clarke CDM-20 is a good option. Its wide measuring range, auto and manual ranging, backlit display, and safety features make it a versatile and durable instrument. However, if you need a more portable or feature-rich multimeter, then you may want to consider other options such as the Fluke 117 or the AstroAI DMM. Ultimately, the choice depends on your specific needs and budget.

Details:

Purpose: measures ac/dc voltage , dc current, resistance, transistor HF, and audible continuity. Item comes from a well kept, clean adult household, pet and smoke free. Design: features a 3 digit 1999 count LCD, 7-segment display, and 32-position dial. Complete as shown, powers up perfectly, all functions work.

/ - / up for your consideration is the following item / grouping of items: - item. S:// .Clarke service.co.UK/manuals/meters/cdm20.PDF. Each item that I list for sale is: 1 carefully inspected, 2 listed w/ full disclosure, 3 packed with the utmost care. Unit is clean, and shows barely any use.

Includes the black/red/green wires and carry case. Manual/product link: online manual can be found here. Instated shipping charge is for the contiguous USA. Clarke cdm20 digital multimeter with case, vintage, barely shows any wear CDM-20.

Online manual can be found here about the item.

specifications testmultimeters:

• brand: Clarke
• mpn: Cdm-20
• part type: Multimeter Case
• features: Vintage
• test/measurement functions: Ac Current, Ac Voltage, Continuity Test, Dc Current, Dc Voltage
• frequency: Hz, Resistance
• country of origin: United States
• display: Digital

shipping testmultimeters:

• type: fixed
• class: standard
• transit: 3-8 days
• service: standard

seller testmultimeters:

• rating: 99.8%
• city: spokane, washington
• # reviews: 2391

returns testmultimeters:

• policy: no returns

offer testmultimeters:

• price: $29.99
• item condition: Used
• availability: in stock
• sold #: 6
• started: april 7, 2026
• best offers: true
• in stock #: 1
• options: ship-to-home

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• category: Business & Industrial > Test, Measurement Inspection > Detectors > Multimeters

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