A Heron Water Level Meter is the instrument of choice for professionals worldwide.
Heron Instruments is committed to designing and manufacturing high quality water level monitoring systems. We’ve developed a broad range of water level measuring instruments to measure and continually monitor changes in the water table level. We continue to devote resources into R&D to expand and improve our water level instrument line and enhance customer satisfaction.
Heron Instruments Inc. began manufacturing the H.OIL oil/water interface meter in 1995, and then quickly added a variety of groundwater monitoring instruments to our product line. Heron has grown from a two person home based business to a company operating out of an expansive building that accommodates approximately 20 full and part time employees.
We also support our local University and Colleges by participating in their Co-op and Internship programs. We are very pleased with the new and fresh ideas these students have brought us in the area of programming and product design, and we look forward to adding another student in our machining area.

Our Best Selling Water Level Meter
The Heron dipper-T is renowned for its premium, polyethylene coated yellow steel tape accuracy in measuring depth to water. Available in your choice of either metric or engineering scale.
Static mode is used for measuring the depth of water in wells, boreholes and standpipes. drawDown mode is used for measuring falling water levels during purging, well development and for low flow sampling.
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Intrinsically Safe Interface Meter
The H.OIL oil, water interface meter is used to measure the interface level between two liquids in the same tank, vessel, well or aquifer. The dissimilar density of two liquids means the lower density, non-conductive product (LNAPL) will float on top of the higher density, conductive liquid (water). Denser products will tend to sink (DNAPL), creating a layer under the water. The premium padded carry case comes included to protect your precision instrument from the elements.
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Groundwater Level Data Logger
The dipperLog NANO is a top of the line, low cost, accurate, user friendly groundwater data logger. It’s used by groundwater professionals in need of a durable, reliable and cost effective solution to long term groundwater level monitoring
in boreholes and open bodies
of water.
With an intuitive program, the dipperLog NANO is simple to launch and data recovery is fast and simple.
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Heron dipper-Temp 80 vs dipper-Temp 110

Heron dipper-Temp is an excellent choice when looking for an accurate water level meter which will also measure temperature. Both models incorporate our jacketed, high-tensile, ASME certified, steel tape, marked in either metric or imperial engineering units and are equipped with all our premium water level meter features. The built in hanger and tape guide […]
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In our latest blog:
Check out how to use our drawDown function found on ALL Heron WLM's!
Learn More ➞Testimonials
Apr 12, 2018
Apr 10, 2018
Apr 5, 2018
I appreciate your time, and believe in your products.
Today I have received the items.
Thank you everybody for CE certificates, it works perfectly!
Have a nice day!
Thanks so much.
On Friday August 5th, I spoke with Terry to get information about a purchase in 2006. Although it has been a while since the purchase was made (about 10 year ago), she worked some magic and was able to successfully find out needed information about the equipment purchased.
Her time, knowledge, and patience were really appreciated and will entice us to continue considering Heron for future purchases.
Just thought I would take the time to tell everyone thank you for the timely manner in which my
Order was handled! You have took a lot of stress out by getting our Dipper Tough here so quick.
We have been going to Heron Instruments Groundwater Monitoring for about ten years now because they offer quality service and products. We sell and rent their equipment. We find that they are quick with processing orders and delivering. Their customer support is good with respect to troubleshooting and warranty issues. We will definitely continue to use them.
I have been selling Heron Instruments products for over 10 years and have learned that they are excellent instruments for performing water level instruments, detecting oil on water and measuring oil thickness and a number of other products. Their service has also proven to be supurb!
We really enjoy dealing with Heron Instruments Groundwater Monitoring Inc. They are quite local to us and we quote their products and prices to clients on a regular basis. We've had no issues getting repairs done or ordering new products from them. We've been supporting them for at least six years. There's another supplier locally, but the prices and products are not completely equivalent, so we'll often quote both alternatives to our customers for comparative purposes. There are a few cases where Heron products are more well-suited for the customer. They very small, family-based company, so it's very easy to get a hold of the specific person you're looking to talk to there. It's a small sales team and I know them very well. I'm always talking to somebody I know. There's always somebody there to pick up the phone right away. It's not an automated system, which is really nice. They're all under one roof; they don't have multiple offices. Manufacturing, sales, shipping--it's all under the same roof, which means they have good communication within their office. It makes it really easy to get feedback from them and get questions answered very quickly.
We've been using Heron Instruments Groundwater Monitoring Inc. for over ten years. When you place an order, you get instant confirmation. Their follow up is great, and when the product ships, you get notifications. They have awesome, on time delivery. They also have worked with us on some custom items for our company needs. They come through flawlessly every time.
We are a distributor of Heron Instruments Groundwater Monitoring Inc.products. The service is always excellent. They are always very responsive. If we have an issue they will take care of it right away. I have worked with everybody from the president to the shippers. I am always satisfied. The product is also very excellent. I appreciate their innovation. It has been a great experience!
It was my first time using Heron Instruments and I had a great experience with them. All of my questions were answered. Most of the technical specs were on the website. There wasn't too much additional information I needed to get by phone or email, except a price quote. They had some additional options that weren't listed, but those were addressed and my additional questions answered.
This was my first time using Heron Instruments Groundwater Monitoring Inc. They assisted me in a situation that I was stuck in where a tape meter broke. The technician gave me all of the information that I needed in order to make the decision to fix or replace it. I decide to replace it. I dealt with a young woman by the name of Terri in customer service. She was very responsive and easy to work with. I appreciate all of her help. I am getting my new unit tomorrow. I hope I do not gave to but I would use them again.
We're a rental company and we purchase Heron Instrumentals's products to rent out to people for something like thirty to forty dollars a day. They're very durable and can retain a beating. This company has worked with Heron for about fifteen years.