EcoMeter S

Ultrasonic water cistern level sensor with separate digital display

General Information
Input / Output
Electrical Data
Mechanical Data
Certification / Approvals
Additional Information
SKU: EcoMeter S


  • Type of medium: Liquids
  • Measuring range: 0.12 to 3 m
  • Accuracy: ± 10 mm
  • Process temperature range: -10 to 60 °C
  • Measures tanks up to 19,999 litres
  • Normal mode: Monitor receives and processes data in 30 min intervals
  • Fast Mode: Monitor receives measurement data in real time at level change of ≥ 1 1/5" (3 cm)/ min
  • The ultrasound sensor is battery operated and connected via a radio transmitter to the monitor

Fields of application

  • Suitable for use with underground cisterns and tanks or inaccessible areas
  • Basement tanks, underground tanks, concrete tanks and cisterns, outdoor tanks or battery tanks


The Proteus EcoMeter S is an ultrasonic liquid level sensor, battery powered and equipped with a digital radio transmitter. This device has been developed especially for water tanks, rainwater and cisterns - but it can also be used for continuous measurement of the fuel tanks content (eg. diesel). The intelligent algorithm responds quickly to level changes in the tank (e.g. during refilling of water or fuel several times per day, or pumping the tank content out).

Optional antenna extension (EcoMeter PLUS): An additional cable with a length of about 30 ft (9m) between the sensor and wireless module allows you to install the sensor in underground tanks and cisterns, manway opening or hard to access and radio dead areas.

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What do our customers say

Valentine Godin

Great product and customer care! Reliable, fast and honest... I have recently purchased 2 pieces of equipments; their service has been spot on from start to finish, understanding my needs, providing useful advice and rapid assistance when it was required! Highly satisfied, I highly recommend their teams and would definitely work with them again in the future!

Questions & Answers

Do you have shipping to Sri Lanka? (1 answer)
by Manoj , 8 months ago
Hello, I am sorry but we only ship inside the European Union and Great Britian. Sadly, Sri Lanka is not inside our service area
by Visaya - Adrian Gniwotta, 8 months ago
When is it recommended to use the external antenna? The upperside of my cistern is 10 cm under ground and 5 m from the garage where the screen will be placed. (2 answers)
by Fabio, over 1 year ago
I can put a cable on the surface/ground but in this case I need 15 meters instead of 9 meters. Is it possible to get a longer cable or can I add extra meters to make it longer? How do you connect the antenna extention to the sensor?
by Fabio, over 1 year ago
I have a well that is 7 meters deep from bottom to ground level then 2 meters tot he roof of the well, can this be used for measuring the water , the well holds approx 7500 liters. (1 answer)
by rob, almost 2 years ago
Hello, the Ecometer S can measure tanks with the height up to 3 meters. Please contact us with your inquiry ( to receive possible alternatives for your application.
by Visaya, almost 2 years ago
EcoMeter S
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What do our customers say

Ohannes Markarian

A great company that provided a wide range of products from various suppliers. Support is excellent and very responsive

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