Introduction

The best multimeter under 50. The best multimeter under 100. Klein Tools MM400 Manual-Ranging 600V Digital Multimeter is a great little meter and number one on our list for the best multimeter under 50.  Klein Tools MM400 is an auto-ranging multimeter that measures AC/DC voltage, AC/DC current, and resistance. It can also measure temperature, capacitance, frequency, duty-cycle, and test diodes and continuity. It is not a high end Digital Multimeter. This low price point multimeter is a nice tool for the homeowner. The basic testing feature that it performs is testing batteries, testing electrical circuits and testing electrical switches. Klein Tools is a manufacturer of quality products. The MM400 can measure up to 600 volts AC and DC, up to 10 amperes of current, and up to 40 Ohms of resistance. This meter can also measure temperature, capacitance, diodes, frequency, continuity and duty cycle. This Multi Meter does not disappoint. It is job tough.  You may call it a multimeter or a VOM meter,  it is a measuring instrument for electronics.

 

Features

Best Multimeter Under 50

Display

You can read symbols and numbers easy because of sufficient screen size. The MM400 has a backlight.

Auto ranging

This feature sets the range automatically. This is a valuable function for those who are not professional electricians or have experience with multimeters.

Low battery audible

The unit will make an audible signal warning of a low battery. A symbol displays meaning it is time to change the battery.

Measuring temperature

Measuring temperature is easy with The Klein  MM400.  A feature not found in lower priced meters. Check the temperature by connecting the multimeter probe and placing the thermocouple against the test area. The meter measures capacitance, voltage, and other electrical outputs.

Data hold

If you cannot write down the tested values, press the “hold” button and the multimeter will store the last reading. The reading will remain until you overwrite or press the hold button again.

Auto shut off

The auto shut off feature prolongs the battery life. After 15 minutes of inactivity, the multimeter shuts off.

Comparison Table

KLEIN DIGITAL         MULTIMETERS

FEATURES

MM300

MM400

MM600

MM700

Drop Protection

3.3 ft. (1 m)

3.3 ft. (1 m)

6.6 ft. (2 m)

6.6 ft. (2 m)

Ingress Protection

IP42

IP42

Safety

CAT III

CAT III

CAT IV

CAT IV

600V

600V

600V

600V

AC Voltage (Volts)

600V

600V

1000V

1000V

DC Voltage (Volts)

600V

600V

1000V

1000V

AC Current (Amps)

10A

10A

10A

DC Current (Amps)

10A

10A

10A

10A

Ohms (Resistance)

2MΩ

40MΩ

40MΩ

40MΩ

DC Millivolts

X

X

X

X

AC Milliamps

X

X

X

DC Milliamps

X

X

X

X

AC Microamps

X

X

X

DC Microamps

X

X

X

X

True RMS

X

Audible Continuity

X

X

X

X

Backlight

X

X

X

Temperature

0° – 1000°F                   (-18° – 538°C)

0° – 1000°F                   (-18° – 538°C)

0° – 1500°F                  (-18° – 816°C)

Low Impedance

Auto Ranging

X

X

X

Range Hold

X

X

X

Data Hold

X

X

X

X

Diode Test

X

X

X

X

Capacitance Test

200 μF

1000 μF

4000 μF

Frequency / Duty Cycle

1Hz – 50 KHz

1Hz – 500 KHz

1Hz – 500 KHz

Max / Min

X

X

X

Lead Warning

X

X

Bar Graph

              

Magnetic Mount

Available As

Available As

Available As

Available As

Accessory

Accessory

Accessory

Accessory

Auto-Power Off

X

X

X

Battery Test

X

X

LCD Display Count

2000

4000

4000

4000

Safety

Read, understand and follow all instructions, cautions and warnings attached to and /or packed with all test and measurement devices before each use.

Before each use verify meter operation by measuring a known voltage or current.

Do not use the meter during electrical storms or in wet weather, and do not use the meter or test leads if they appear to be damaged.

Pros

1. Auto ranging
2. Compact
3. Soft durable housing to survive accidental dropping
4. Accurate readings
5. Backlight
6. K-type thermocouple and adapter
7. Good Leads

Cons

1. The screen may lose its contrast
2. Not a device for checking sensitive electronics
3. No RMS Technology

Conclusion for Best Multimeter Under 50

This multimeter is a good investment, to say the least. This is the best affordable multimeter, the best multimeter for electronics hobbyist, and the best multimeter for DIY. The MM400 remains affordable and is liked by DIY users. The low price point and the advanced features of this multimeter makes it the best digital multimeter under 50 as well as the best multimeter under 100.

 

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