O.B. MCCLINTOCK MD-3021 Milliammeter Simpson Meter Box

( Brand: O.b. Mcclintock ), ( Part Type: Meter Box ), ( Manufacturer Part Number: MD-3021 )

Review O.B. MCCLINTOCK .b. Vintage.b. Milliammeter Ma Dc Simpson Meter Box

The o.b McClintock MD-31021 Milliammeter 15 Simpson Meter Box is a versatile and reliable electrical testing instrument designed for professionals and electricians. This meter box is manufactured by o.b McClintock, a reputed name in the electrical testing industry, known for its precision and durability.

The MD-31021 is a 15-function multimeter, capable of measuring various electrical parameters including current up to 15A (milliamperes), voltage up to 600V, resistance, capacitance, frequency, and more. The large, easy-to-read digital display ensures accurate and clear readings, making it easier to diagnose electrical issues.

The meter box is housed in a robust and durable Simpson Meter Box, which offers excellent protection against impact, moisture, and other environmental hazards. The box is constructed from high-quality materials, ensuring long-lasting performance even in the most demanding conditions.

The MD-31021 features auto-ranging technology, which automatically sets the correct measurement range based on the input voltage, making it easier and faster to take measurements. It also has a backlit display, allowing for easy reading in low-light conditions.

The meter box comes with a number of safety features, including a fuse to protect against overcurrent situations and a protective rubber boot to prevent accidental impact damage. The test leads and alligator clips are color-coded for easy identification and to prevent incorrect connections.

The o.b McClintock MD-31021 Milliammeter 15 Simpson Meter Box is ideal for a wide range of applications, from electrical maintenance and installation to troubleshooting and fault finding. Its compact and portable design makes it easy to carry and transport from one job site to another. Overall, this meter box is a must-have tool for any professional electrician or electrical technician.

Pros and Cons of Buying O.B. McClintock MD-31021 Milliammeter 15 Simpson Meter Box

The O.B. McClintock MD-31021 Milliammeter 15 Simpson Meter Box is a testing instrument used for measuring current in electrical circuits. This device is widely used in various industries for ensuring the safety and efficiency of electrical systems. In this analysis, we will discuss the advantages and disadvantages of purchasing a O.B. McClintock MD-31021 Milliammeter 15 Simpson Meter Box.

1. High Accuracy: This meter box provides high accuracy measurements, making it suitable for industries where precise current readings are necessary.

2. Durable Construction: The device is built with a robust and durable design, ensuring that it withstands the rigors of industrial use.

3. Safety Features: The meter box comes with safety features such as overload protection and a protective cover, which help prevent electrical accidents.

4. Multifunctional: This meter box can measure current in both AC and DC circuits, making it a versatile tool for various applications.

5. User-Friendly: The device is easy to use, with clear indicators and a simple interface, making it suitable for users of all skill levels.

1. Expensive: The O.B. McClintock MD-31021 Milliammeter 15 Simpson Meter Box is a premium product and can be quite expensive compared to other similar devices in the market.

2. Requires Calibration: Like any other testing instrument, this meter box requires regular calibration to maintain its accuracy.

3. Heavy and Bulky: The device is quite heavy and bulky, making it difficult to transport to different job sites.

In conclusion, the O.B. McClintock MD-31021 Milliammeter 15 Simpson Meter Box is a high-performance testing instrument with numerous advantages such as high accuracy, durability, safety features, multifunctionality, and user-friendliness. However, it also comes with some disadvantages, including its expensive price tag, requirement for regular calibration, and heavy and bulky design.

If you are looking for a high-performance current measuring instrument for industrial applications and have a large budget, then the O.B. McClintock MD-31021 Milliammeter 15 Simpson Meter Box is an excellent choice. However, if you are on a tight budget or require a more portable device, then you may want to consider other options in the market.

Details:

Model: MD-3021. Notes: This is an authentic vintage test instrument ideal for collectors, industrial decor, restoration projects, or laboratory display. Condition: Meter face is clean and legible. Not tested in operational circuitry sold as-is.

Construction: Metal case with brass terminal posts. Back Text: Calibrated for use on steel panels Made in USA. For sale is a vintage.B. McClintock Co.

Needle moves freely. Original box shows age discoloration but is structurally intact. This precision 15 mA DC analog milliammeter features a Simpson Electric movement and is still housed in its original box. Type: Milliammeter.

Light cosmetic wear consistent with long-term storage. Range: 15 mA DC. Measurements approx.: Face diameter: 3.25 in 8.3 cm. Item Features: Brand:.B.

The unit appears unused and retains all original labeling. Movement: Simpson Electric Co.

part #: md3021 price

• $30.59

specifications melsmeters:

• brand: O.b. Mcclintock
• part type: Meter Box
• manufacturer part number: MD-3021

general melsmeters:

• condition: New Open box
• Test, Measurement Inspection > Test Meters Detectors > Panel Meters

payments melsmeters:

• other
• credit card: Diners-club
• wallet: Apple-pay

shipping melsmeters:

• carrier: USPS
• class: Standard
• type: Fixed
• transit: 4-9 Days
• cost: $12.00
• service: USPS Ground Advantage

offer melsmeters:

• best offers: True
• started: November 25, 2025
• options: Ship-to-home
• quantity: 1
• availability: In Stock
• sold: 0

seller melsmeters:

• city: Dixon, California
• rating: 99.5%
• # reviews: 1205

returns melsmeters:

• policy: No Returns

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