Best Solar Power Meter – Top reviews of 2021

In 2020, your choice of solar power meters has become more difficult simply because of an expanded array of options. Hugely functional, these handy devices tell you how much power the sun is putting out in the area you’re standing in watts per meter squared.

What you’re looking for in a solar power measuring instrument will remain pretty much constant. However, there are some differences between the available products to keep in mind. Use your judgment to determine what you need and which solutions would best serve those needs. We’ll identify some features you should keep in mind at the bottom of this article after we list our recommendations.

TES 132 Solar Power Meter (Datalogging)

Signstek Handheld Portable Solar Power Irradiance Meter

TES 1333R Solar Power Meter

What Are the Best Solar Power Meters For Sale in 2020?

TES 1333R Solar Power Meter

Best Value

This solar power meter is a fantastic value. It’s fully cosine corrected, meaning it adjusts and accounts for the angle at which sun is hitting the sensor, giving you an accurate reading of the amount of energy available for solar gathering at the place of the measuring instrument.

The meter provides an excellent balance of features and price, which is why we’ve lent it our Best Value award.


  • Reliable
  • Cosine corrected


  • Simple

TES 132 Solar Power Meter (Datalogging)

Editor's Pick

This unit is very similar to the TES 1333R, containing all the same features, but adding an important new one as well. This measuring instrument logs the data it collects for future retrieval, so you can collect multiple data points and retrieve them after the fact. At a very reasonable price, this product garners our much sought after Editor’s Choice award, for its perfect balance of price and features.


  • Amazing price
  • Charming look


  • The price is a little higher than some of the other products

Signstek Handheld Portable Solar Power Irradiance Meter

Most Popular

With an average user review of 4.5 stars out of five, this solar measurement unit is built durably, reliably, and with a full feature set. No wonder it’s flying off the virtual shelves! While simple and straightforward, it will do everything you expect it do and it’s easy to figure out.


  • Amazing usability


  • None

Handheld Digital Solar Power Meter (Pyranometer)

This product is about as simple as they get. It measures the amount of solar energy falling on its sensor. There’s nothing fancy or extra about the product though. It just works. Nothing wrong with that, and the price point is right too.


  • Durable construction


  • Plain plastic coloring

General Tools DBTU1300 Digital Solar BTU Power Meter

The last thing you want is your solar power meter to fail after you’ve just brought it all the way to a job site. Luckily this product’s durability and reliability will ensure that this unit won’t let you down when you need it the most and leave you making an impromptu Home Depot run in the middle of an assignment.


  • Highly reliable


  • May be lacking some features you would like

Features To Consider

Best Solar Power Meter Features To Consider

Much like choosing a solar battery tester, when deciding on which solar power measurement unit you wish to buy you’ll want to keep the intended recipient and likely use location in mind. If you’re buying the unit for repeated use, you may want to grab a different product than one that’s just being used as a one-off.

Ease of Construction

As most people are not electricians, engineers, or solar panel installers, the typical consumer is looking for a product that is easy to put together and maintain. Just like residential solar panels are. Luckily for that consumer, all of the products included on this list are “plug and play” (so to speak.) Just stick them in the sun and watch them go. However, you will need some knowledge about small electronics and the ability to follow directions to make them work properly, so use care to select an item with good technical support if that’s a subject you lack skill in.


You don’t want to buy a solar power meter only to have it fail in a couple of days. You want these units to work for as long as the sun rises. Luckily, all of the products on this list will meet that criterion. On a related note, if you’re wondering whether solar panels are reliable enough to buy, or if you should lease them, click the preceding link.)

Style and Color

You’ll want to make sure that the aesthetics of the product you choose are acceptable to you. These products, though functional, might not satisfy your picky sense of style, so try and get the most attractive one in your price range.

Consider Giving Solar Power Meters As A Gift

Because of their versatility and universality, solar power meters make perfect gifts, especially for a do-it-yourselfer who has a lot of solar-powered products and a solar generator. They can save users a ton of money.

Save The Environment

Rather than devour energy from batteries or a wall socket, this solar power meter encourages the use of products that draw their energy from the sun’s rays. Much more environmentally-friendly than products that require other forms of energy, this one won’t encourage the use of any toxic disposable batteries to clean up or drain power from your grid and drive up your energy bills. All you need is clean and natural sunlight, for some clean and natural fun. (Worried that your solar-powered devices won’t charge without sun? Click the preceding link!)


Gone are the days when the use of solar-powered devices consisted of multiple calls to technical support of dubious value. Solar powered measurement units can put an end to that counter-productive practice while putting very little strain on your budget. As is clear from the foregoing, we strongly recommend the TES 132 Solar Power Meter (Datalogging). Its blend of versatility and value is the perfect combination for the vast majority of consumers and the positive Amazon reviews are proof of that. If you want to go with the hot new thing though, you can’t go wrong with the Signstek Handheld Portable Solar Power Irradiance Meter. At just under $120 for a fully functional unit, you’ll hardly notice the cost. You’ll definitely notice the tremendous utility you get from the product when you’re measuring the irradiance of your new solar light, as there’s hardly anything on the market as fun and educational as these solar power meters.

Rated 4.5 out of 5
Based on 29 reviews

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