Meteorological rain and precipitation sensor
Rain-O-Matic Meteorological rain and precipitation sensor with our patented self-emptying tipping bucket is one of the most accurate and reliable precipitation gauges on the market that comply with WMO standards.
For 30 years we have supplied more than 220.000 rain gauges to 41 countries on 5 continents. We deliver our products to OEM customers only and we are not competing with you for the end user Download datasheet here.
Features and benefits
Beneath is listed the features and benefits of choosing Rain-O-Matic Meteorological as your rain guage.
RAIN-O-MATIC Small patented self-emptying tipping bucket is one of the most accurate and reliable rain gauges on the market.
- More accurate measurements
- Only one adjustment screw which makes it easy to recalibrate.
- Bucket made in POM, which is a more dismissive material and therefore makes dust and dirt not stick so easily on the spoon and maximize water release.
WMO compliant rain gauge
Rain-O-Matic Meteorological complies with World Meteorological Organization standard (WMO guide no.8) such as:
- Deep funnel to avoid splash out and evaporation.
- 200 cm2 orifice angel top-ring with sharp edges.
- Drain pipe for collection of precipitation.
Drip-rod/filter in plastic.
Calibration is a very important issue for PRONAMIC and therefore all Professional rain gauges are manually calibrated. It gives you the guarantee for a very accurate measurement. Free selection of 0,1 – 0,2 0, 25 or 0,5 mm resolution at the same price. Accuracy: +/- 2%.
Rains sensors with minimal maintenance
Our smalll rain sensors require minimal maintenance due to:
- Outer shell is made from ASA which makes the surface easy to clean.
- High quality plastic materials and a simple design for a very long durability (10-20 years)
Rain gauge/Tipping Spoon
Rain-O-Matic Meteorological measures the precipitation by means of a funnel (orifice 200 cm2), which leads the water down into the self-emptying tipping POM bucket, held in place by a hard ferrite magnet.
The magnet always exerts just enough tension to allow the measuring bucket to empty in one quick movement (less than 300 ms) and then return to its normal position, ready to once again collect precipitation. This means the counter weight always remains the same opposite to other conventional two spoons tipping bucket rain gauges.
In the bottom of the rain gauge there is space for a small internal data logger.
Diagrams of intensity are available in the datasheet here.
ASA plast materials
The rain gauge is made in molded thermoplastic, also known as ASA, which has high outdoor weather ability.
ASA is extremely resistant against the sun’s UV radiation, it is frost‐ and heat resistant, standing all climatically conditions.
The product is widely used in the automotive industry as well as several other outdoor applications.
The electronic printed circuit board with individually tested and high quality reed switches protected against extreme weather conditions such as extreme frost or heat. This include corrosion from salt water due to the PCB is coated with weather-resistant varnish.
The printed circuit board comes in this version:
- PCB No. 9602 (NC—Normally closed, NO—Normally open). Terminal strip with 4 connections / 2 outlets and 2 reed switches, connected-up in series by 1 kohm and 1/4W resistor.
Full customization of your rain sensors
Our strength is customized rain gauges for the individual customers. Logo Match - Branding of your own brand/company name on the rain gauge.
The Rain-O-Matic Meteorological is accurate and rugged which makes it perfect for:
- Weather stations
- Meteorological institutes
- Water works
- Wastewater treatment plants
- Hydropower stations
- Research facilities
Please go to application areas for further information.
Price and logistics
We deliver directly to you. We have no agents, distributors or other expensive middlemen.
Let us have your estimate for quantities required and we will come back to you within 1 day on weekdays. Our strength is customizing, so please don’t hesitate to contact us for a price request on some specific demands.
Due to its size and lightness, it is economic to transport worldwide. Time of delivery: 5 days + transportation time by TNT.
Time of delivery
5 days + transportation time by TNT.
Our rain gauges are of such a high quality that we offer 24 months of warranty on mechanical- and plastic parts.
All components are RoHS approved.
Rain-O-Matic Small have been tested 100 % frost proof.
See Service & Support for further information.
Rain-O-Matic Meteorological is patented and protected by the Law of Copyright. Patent no. UM-27598, AU pat. 565951, EPO Pat. 014212, US pat. 4.644.786, CA Pat. 126181, Japan Pat. 501208/83 Taiwan Reg. 74-201292
Components may NOT be used for other products or purposes without a written approval from PRONAMIC ApS. Violation implies immediate prosecution.
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