Easy installation. Works as stated.
"Easy installation. Works as stated. Very happy."
Your pool stays full, automatically. No timers, no manual filling, no overflow.
LevelSmart™ wirelessly monitors your pool's water level 24/7 and automatically fills your pool back to the desired level Set it once — it handles the rest. Works with pools, spas, ponds, water features, and tanks.
Why pool owners choose LevelSmart:
Choose 120VAC (North America A/B plug) or 240VAC (International E/F plug) based on your electrical setup.
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Extended Wireless Range: Delivers reliable performance with up to 1,000 feet of wireless communication, ensuring seamless operation across large areas.
Sleek, Compact Design: Engineered for unobtrusive integration, blending seamlessly into any pool environment.
Effortless Installation: Designed for a simple retrofit installation, allowing for quick and hassle-free upgrades to your existing system.
Customizable Fill Rate: Offers adjustable fill rate settings, providing precise control over water replenishment according to your needs.
Automatic Water Level Management: Maintains your desired water level with precision, reducing the need for manual adjustments.
Advanced Overfill Protection: Safeguards your pool with built-in overfill protection, preventing water waste and potential damage.
Seamless Integration with Existing Plumbing: Utilizes your existing plumbing system, minimizing installation time and disruption.
Smart Meter Compatibility: Fully compatible with AMI Smart meters, not interrupting existing radio signals.
Frequent Water Level Monitoring: Conducts water level checks every 30 minutes, ensuring consistent and optimal water levels at all times.
The LevelSmart™ Sensor wakes up every 30 minutes to check the current water level of your pool, spa, water feature or tank and then wirelessly communicates the information to the Valve Controller. If the current water level is measured below the set level, the Valve Controller will then open the Valve for 7 minutes. The Valve Controller will turn off the Valve after 7 minutes as a failsafe against over-fill. Again, in 30 minutes, the Sensor will check the water level and, if needed, fill for 7 minutes. The Valve Controller will only open the Valve if the current water level is below the level set by the user during installation.The Valve is plumbed into the manual fill line, or it is "T'd" into the return lines, from a water source. The Valve Controller can then open and close the Valve to fill your pool as needed.

An autofill system maintains a consistent water level in pools, preventing equipment damage and reducing the need for manual refills, which simplifies maintenance. It also helps conserve water by adding only the required amount, while ensuring optimal chemical balance for better water quality.
An autofill system ensures consistent water levels in spas, preventing damage to pumps or heaters while maintaining a steady water temperature. It also saves time by eliminating the need for manual refills, providing a more convenient and hassle-free spa experience.
An autofill system helps maintain consistent water levels in ponds, protecting the ecosystem, preventing damage to equipment, and minimizing evaporation. It also conserves water by replenishing only when needed, ensuring optimal use of natural or well water.
An autofill system ensures a reliable water supply for rainwater collection or storage tanks, preventing overflow and dry runs while maintaining the proper water level. It also reduces labor by automatically refilling the tank, saving time and effort.

The LevelSmart is renowned for individual needs and equipment setups. The autofill functionality is versatile, catering to pools, spas, ponds, and tanks.
Multiple LevelSmarts can be used in the same area without interference. Each sensor communicates only with its paired controller. Pair units at different times to avoid pairing issues. Customers commonly use separate units for pool, spa, and water features.
We have thousands of LevelSmarts installed on negative edge pools. The sensor can be fully submerged in the catch basin without any issues.
The LevelSmart Sensor adheres to your pool with a marine grade A/B epoxy. When mounting your Sensor you will need to knead the epoxy to effectively mix the components and apply it to the back of the Sensor.
Every LevelSmart comes with A/B epoxy.
When selecting antenna length, keep in mind our long-range communication distance is up to 1,000 feet between the Sensor and the Antenna Tip. The antenna cord length ensures you get that antenna tip in a position that will allow successful communication between the Valve Controller and the Sensor.
If you are unsure if you need the extra distance, you can always purchase an extra 25 ft of Antenna Extension post-purchase.




Overall rating: 4.8129034 / 5 from 155 reviews.
The LevelSmart Wireless Autofill is highly recommended for its ease of installation and functionality, ensuring accurate water level maintenance in pools and other water bodies. Customers praise its consistent performance and ability to save money and water. The device is easy to set up and works perfectly, with excellent customer service support.
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"Easy installation. Works as stated. Very happy."
"Easy to install and has worked flawlessly. I had the wired version for many years and decided to replace it after the water level probe failed but the electronics were without any fault for years! I am a dedicated fan of Kona Labs now for offering me an easy solution to a poorly designed and antiquated pool plumbing system."
"So far great! Such a great addition to the pool and has really simplified maintenance. Would highly recommend"
"This is a rip-off if I have to buy a new sensor every 2 to 3 years when the battery dies."
"while there was a problem customer service was great"
"Worked as advertised!"
"Purchased the product this spring and couldn’t be more pleased. In addition to the performance of the unit the video help to guide you through installation is first rate. I would like to see a video published to guide the user through winterizing the unit for the end of season. Thank you."
"With two separate vacation rental properties in south Florida I had to continuously monitor the water level. Adding water at least once a week. The level smart has worked flawlessly now for over 3 months. Huge time saver."
"I have been waiting for a autofill system that not only I can trust, but one with daily information about my pool. I ended up getting another one for my spa. The best purchase I've made this year"
"Recently installed the LevelSmart Wireless Autofill after finding no other solution that does not require running hose to pool. My pool equipment is 75' from the pool, with skimmer adjacent to stone coping and stone pavers (stone cover for skimmer lid vice plastic). I ended up mounting antenna on top of a 3' piece of 1/4" PVC tubing to keep it away from any metal. Like other online, I housed the pool equipment-side components in weather-resistant electrical housings just to keep rain elements off as much as possible. Installing the components was very simple. . . if you are comfortable doing DIY w/ PCV, installing this inline w/ pool plumbing is simple. Installing the sensor in the pool skimmer was seamless; however, you may want to measure height of your skimmer inlet prior to installation just to make sure there is enough room - especially if it's tiled. Mine is tiled and I only had 1/2" clearance on either side. Syncing sensor took 2 tries - prob because I didn't have magnet in the exact proper location. It has been 2-3 weeks since it has been installed and no issues!! No more dragging hose to fill the pool or worrying about low pool levels when on vacation!"