Topcon RL-H5A vs RL-H5B Review

If you need a product that offers great accuracy for large-scale projects, then a self-leveling rotary laser may be for you. Self-leveling rotary lasers are great for easily getting accurate guidelines for home-improvement and construction tasks. Topcon makes two very similar self-leveling lasers, with a few key differences. Let’s take a look at both of these lasers, and see which one would be the best fit for your leveling needs!

Topcon RL-H5A Self-Leveling Rotary Laser

Topcon RL-H5A
Topcon RL-H5A

The Topcon RL-H5A self-leveling rotary laser is lightweight at 12.9 pounds, which makes it perfect for jobsite to jobsite transportation. This product comes with a battery life of 100 hours, which is great for extended working. This laser is dustproof and water resistant with a rating of IP66. The Topcon RL-H5A has a 360-degree laser to cover your entire work area with ease.

This leveler has an accuracy of 3/32of an inch at as much as 100 feet, and can self-level within 5 degrees. This leveler also comes with slope matching, which makes getting an even reference much faster. In case of bumping, this product relevels itself within 10 arc seconds so you don’t have to worry about resetting everything up manually.

The Topcon RL-H5A also comes with a low battery indicator, and after 30 minutes of disuse, it stops automatically to conserve charge. This product also alerts you if it is out of level, to make sure you get the most accurate level possible. This laser works at 600 RPM for your convenience.

This leveler also provides two LCD displays, one on the back and the other on the front. This product is simple to maneuver with a dual handle, and comes with four alkaline D-cell batteries. A rod clamp, as well as a carrying case and receiver, accompanies this for your convenience. This product’s laser is also a Class 2, making it suitable for indoor and outdoor usage.

More features of the Topcon RL-H5A Rotary Laser

  • 2.4 mW diode
  • 2,600 foot diameter range
  • 600 RPM rotation speed
  • Accurate 3/32 of an inch at 100 feet

Topcon RL-H5B Rotary Laser

Topcon RL-H5B

The Topcon RL-H5B is very similar to the previous laser as it also weighs only 12.7 pounds and provides jobsite durability. The Topcon RL-H5B comes with a laser receiver that provides usage up to a distance of 1,312 feet. This is accompanied by accuracy within 1/8 of an inch at a distance of 100 feet.

Like the former product, the Topcon RL-H5B rotary laser can perform 600 rotations within a minute, to ensure that you have accurate references 360-degrees around the product. This product also provides self-leveling within 5 degrees, making the device much easier to use. Unlike the previous product, this laser comes with a 5/8-11 thread for a tripod, enabling you to use a variety of tripod brands for convenience.

This product has up to 100 hours of life following a single charge, and comes with 4 D-cell batteries for convenience. This is accompanied by an out-of-level notification, so you don’t have to worry about incorrect references. The Topcon RL-H5B also comes with an IP66 rating, which means that this product can withstand rainfall and dust, allowing it to work wherever you need it to.

The Topcon RL-H5B featuresa relevelling system, so that if it is suddenly disturbed it can relevel within 20 arc seconds. This product comes with a carrying case, as well as a sensor holder,for your convenience. The RL-H5B is a Class 2 visible laser, which is suitable for outdoor and indoor use.

More features of the Topcon RL-H5B Rotary Laser

  • 1,312 foot diameter range
  • 600 RPM rotation speed
  • Accurate 1/8 of an inch at 100 feet


A rotary laser is an excellent option if you need a product that can help you get accurate references 360-degrees around the product. If you would like a rotary laser that can auto level within 10 arc seconds, comes with two LCD displays, and an automatic turn off after 30 minutes of disuse, then the Topcon RL-H5A may be the rotary laser for you. Conversely, if you prefer a laser that comes with a high diameter range, relevelling within 20 arc seconds, and use with most tripods, then the Topcon RL-H5B may be the product for you. Both of these products offer 600 RPM and Class 2 lasers, making either an excellent choice for a rotary laser.

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