5 Best Marine Multimeters (Reviews Updated 2022)

This post contains affiliate links, and I will be compensated if you make a purchase after clicking on my links, at no cost to you.

Electronics are used on boats for multiple purposes. Lights require electricity, as do speakers, receivers, navigation systems and many other pieces of equipment. Where there are electronics, there will inevitably be multimeters. A marine multimeter shows the power usage on a boat and allows a boat owner to see if there are any electrical faults occurring.

Best Marine Multimeters

Here are our Marine Multimeter reviews.

1. Blue Sea Systems Multimeter W/Clamp

Multimeter W Clamp Acdc 600v400a

The Blue Sea Systems Multimeter W/Clap is a highly functioning marine multimeter from a reputable manufacturer. This piece of equipment combines smart, easy –to-use design with durable composition making it a great choice for a boat owner.

  • Nickel plated brass and phelonic non corrosive construction
  • Auto range simplifies operation 0.01-400amps
  • Clamp allows AC and DC current measurement
Check Price on Amazon


2. CRAFTSMAN 8 Function Digital Multimeter

Craftsman 3482141 8 Function Digital Multimeter

The CRAFTSMAN 8 Function Digital Multimeter is an affordable option when it comes to marine multimeters. This product measures up to 600 volts AC and DC making it a reliable choice. It has been diode tested for electronic and electrical testing.

  • Resistance up to 2 megaohm for auto electrical wiring testing and repair
  • Audible tone sounds below 30 ohms
  • User friendly design
Check Price on Amazon


3. Klein Tools MM400 Multimeter

Klein Tools Mm400 Multimeter, Auto Ranging Digital Electrical Tester For Temperature, Capacitance, F

The Klein Tools MM400 Multimeter is a smartly-designed marine multimeter. This product is available with either ran auto-ranging feature or manual ranging depending on requirements. It has a low batter indicator and easily accessible battery compartment.

  • Measures up to 600 V AC/DC voltage
  • Measures temperature, capacitance and frequency
  • Durable drop resistant design
Check Price on Amazon


4. TACKLIFE Digital Multimeter

Digital Multimeter Auto Ranging With Nvc, Test Amp Voltage Ohm Diode Continuity Frequency With Backl

The TACKLIFE Digital Multimeter is a great deal on an easy to use marine multimeter. This piece of kit has a high definition LCD screen display which very clearly shows relevant digits. It also has a backlight for improved visibility.

  • 2-3 time per second for sampling
  • Free screwdriver included with multimeter
  • Accurately measures AC & DC voltage and current
Check Price on Amazon


5. LOMVUM Digital Multimeter

Lomvum Digital Multimeter, 6000 Counts Manual Voltage Tester Meter With Ohm Volt Amp Capacitance Tem

The LOMVUM Digital Multimeter is an accurately measuring marine multimeter with a modern design. This product troubleshoots effectively when it comes to the electronics onboard a boat. It features a large backlit LCD display for visibility in dimly lit areas.

  • TRMS 6000 counts
  • Accurately measures Ac/DC readings
  • Built in kickstand for hand-free use
Check Price on Amazon


Marine Multimeter Buyer’s Guide

Choosing a marine multimeter is an important investment for a boat owner.  Prices are not too high, usually around the $25 mark.  While the price may seem quite low, a good portable combiner is well worth investing in.  A marine multimeter is a great tool to have because it will allow for quick and effective electronic reading and troubleshooting on your boat.

Our buying guide reviews the best marine multimeters on the market so you can choose the right marine multimeter for your boat.   The following features are included on most marine multimeters and will help you to choose which features you need on a marine multimeter for your boat.


Marine multimeters should ideally be quick and easy to provide readings. Look for one which has a user friendly design which will speed up the process and give you the information you need in no time.


Boat marine multimeters are used to power electronic items onboard a boat, therefore they need to give out certain amounts of power. Many combiners will give out 12v of power, whilst being compatible with 6v batteries also. Combiners which feature a dual design are capable of powering multiple items at once and therefore require more power.


Marine multimeters should be fitted with certain safety protection features. These features include reverse polarity, spark-proof technology, thermal protection, ignition protection and protection from over charging. These features ultimately ensure that the multimeter is as safe as possible and minimize the risk of anything going wrong.


Marine multimeters are made of corrosion-resistant materials because they are to be used on a boat where they may potentially be exposed to water and sea spray.  Common materials include durable waterproof plastics and rubbers.  Be sure to buy a marine multimeter that is made of high-quality materials for a long service life.