#1 Home Improvement Retailer

Internet # 206517192

Model # MM300

Store SKU # 1003041814

Store SO SKU #1001572060

Questions and Answers for Klein Tools Manual Ranging Digital Multimeter

  • Manual-ranging multimeter tests batteries, diodes and continuity
  • Volt Tester measures up to 600 VAC/VDC voltage and 10A DC current
  • Electrical Tester for multi-purpose residential and industial use

Questions & Answers

Is this multimeter made in China?
ByNov 24, 2020
2 Answers | 
Answer This Question

The MM300 Multimeter is made in China.

By|Nov 24, 2020

    Yes. Quality was up to par.

    By|Mar 18, 2021


      Can this measure miliamps. Im troubleshooting car electrical issue and need to measure mAmps
      ByMay 2, 2020
      3 Answers | 
      Answer This Question

      Yes, the Klein Tools MM300 Multimeter can measure DC milliamps.

      By|May 6, 2020

        For this particular multi meter, you can measure between 200mA and 10A. Seems like this range should cover your application but, I am not sure of your specific range for your car that you need to be reading.

        By|Jul 3, 2020

          (1)

          I believe so, not positive (purchased them for a science lab, currently closed and unable to personally check one). If they are not available in the store to check in person, you could order one to pick up at the store, open the package and try it. If mAmp are measureable, then Home Depot is good about taking return items.

          By|May 9, 2020


            Does this unit come with a calibration certificate?
            ByMar 4, 2020
            2 Answers | 
            Answer This Question

            The MM300 Multimeter does not come with a calibration certificate.

            By|Sep 2, 2021

              I went thru the paperwork I rec'd and did not see a specific separate calibration certificate. I am 99.999 % certain each meter is calibrated at quality control check and recorded in conjunction with the specific serial # as part of ISO 9002 compliance.

              By|Mar 9, 2020


                Will This meter test for millivolts mV when looking for a parasitic draw across automotive fuses?
                ByAug 23, 2019
                2 Answers | 
                Answer This Question

                The Klein Tools MM300 Multimeter will measure DC millivolts.

                By|May 6, 2023

                  Yes it will. This model is also quite accurate.

                  By|Apr 11, 2023


                    What is the input impedance on the DC ranges of this meter?
                    ByApr 26, 2019
                    1 Answer | 
                    Answer This Question

                    The input impedance is ~1MOhm

                    By|Apr 30, 2019

                      (1)

                      Does this product have a fuse inside that can be replaced?
                      ByJan 21, 2019
                      2 Answers | 
                      Answer This Question

                      Yes

                      By|Mar 4, 2020

                        (1)

                        Yes, the Klein Tools MM300 Multimeter has 2 replaceable fuses: 200mA/600V fast-blow fuse (Klein Cat. No. 69031) 10A/600V fast-blow fuse (Klein Cat. No. 69032)

                        By|Mar 4, 2020

                          (1)

                          where is the ac voltage.on meter
                          ByMar 28, 2018
                          4 Answers | 
                          Answer This Question

                          This unit has 2 AC voltage ranges, up to 200VAC or up to 600VAC.

                          By|Jan 9, 2021

                            (1)

                            AC voltage is checked with the selector in the 1:00 and 2:00 range. First position to right is 600V and next position to right is 200V. Household current is checked in the 200V setting.

                            By|Jan 9, 2021

                              (1)

                              The Klein model MM300 has two AC voltage scales. Turn the Off switch one click to the right and read up to 600VAC. The next click to the right reads up to 200VAC. Look for an S rotated 90 degrees above V.

                              By|Jan 9, 2021

                                (2)

                                To measure AC Voltage, turn the selector switch to the 1 o’clock position. The close-up image of the selector dial at the top of this webpage shows the multimeter in V AC mode. The Instructions/Assembly document under Info & Guides includes images of the selector switch position for all measurement modes.

                                By|Jun 14, 2021

                                  (2)

                                  can this meter measure ohms as low as single digits? would that be the 200 setting?
                                  ByOct 29, 2017
                                  3 Answers | 
                                  Answer This Question

                                  Yes, this can detect resistance in single digits measurements.

                                  By|May 5, 2023

                                    Yes

                                    By|Apr 9, 2019

                                      Yes

                                      By|May 17, 2022