Rainwater collected by the aluminium funnel flows into a calibrated tipping bucket. Once the preset volume is reached, the bucket tips, empties the water, and returns to its initial position, generating an electrical pulse easily detected by data loggers or pulse counters.
Available with 200 cm² or 400 cm² collector diameters, the RTD Series offers flexibility for both standard meteorological stations and hydrological monitoring networks.

Designed for seamless integration into data acquisition systems, the RTD provides multiple output options:

• Potential-free NC contact
• Digital outputs: RS485, SDI-12, MOSFET Open Drain
• Analog outputs: 4…20 mA or 0…10 V

Heated versions automatically activate around +4 °C, with PID control for digital/analog models and ON/OFF control for contact models, ensuring reliable performance even in cold or snowy climates.
A removable inlet filter and a non-stick treated collector cone simplify cleaning and reduce maintenance downtime.

Ideal for meteorology, hydrology, and environmental monitoring, the RTD Series guarantees precise and consistent rainfall data in every condition.

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DataRain-4000 is a professional electronic weighing rain gauge designed in line with WMO recommendations for high-accuracy precipitation monitoring. It combines a high-precision C3 load cell with an automatic self-emptying system, providing virtually unlimited cumulative measurement with minimal maintenance—even during extreme rainfall events up to 2000 mm/h.

Thanks to the weighing principle, the sensor delivers permanent calibration, maintaining up to 0.001 mm resolution and 0.02% weighing accuracy across the full range. Two versions are available with 200 cm² or 400 cm² collecting area, featuring ultra-low power consumption and an optional smart, energy-efficient heater controlled by an internal temperature probe for reliable all-weather operation. Multiple outputs and protocols make DataRain-4000 easy to integrate into new or existing monitoring networks.

Key benefits

• WMO-compliant electronic weighing rain gauge for professional precipitation monitoring

• Automatic self-emptying system for unlimited cumulative rainfall measurement

• Rainfall intensity range 0–2000 mm/h with up to 0.001 mm resolution

• 0.02% weighing accuracy (C3 load cell) with permanent calibration

• 200 cm² or 400 cm² collecting area options

• Ultra-low power consumption with optional smart heating for cold and mixed precipitation

• Easy integration via pulse output, RS-232/RS-485 (Modbus, ASCII/NMEA) or SDI-12, plus USB for configuration and updates

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The principle of a tipping bucket rain gauge is simple: depending on the quantity of rainfall, the tipping bucket mechanism fills and empties. Every tipping action operates a reed contact: in this way counting the quantity of the rainfall. This means that the tipping bucket has one enormous advantage: it needs no power supply to operate. Power supply is only a necessity when circumstances demand heating because of low environmental temperatures.

Reading the number of counts, in other words reading the rainfall, can be done locally by using a local (battery operated) datalogger such as the HD2013-DB. But it is also possible to communicate directly the results through one of our dataloggers of the HD33 series. The built-in 4G/3G/GPRS modem makes it easy to upload the data directly to one of our cloud applications or to your own secured server.

HD2013 is available as well with optional analog output at choice between 4…20 mA or 0…10 Vdc (to be specified when  placing the order) or with optional SDI-12 digital output. When ordering, the rain gauge is completely setup to be used.

Easy to install, adjustable feet and leveling device integrated. Bird spikes and accesories for raised mounting available.

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Kindly refer to HD2013.3.

The post HD2013.2 – Precipitation Detector appeared first on Senseca.

HD2013.3 detects all type of precipitations.

Quick  and simple to  integrate in any outdoor installation or configuration thanks to the enhanced connection possibilities: we supply this version in Modbus-RTU or 4-20mA or 0-10V or contact output.

Our standard features:

• capacitive element is shielded from wind by the protecting dome construction: no false indications
• capacitive element is heated to be able to detect any form of precipitation, including snow and hail
• can be standard equipped with bird-spikes
• supplied with heavy duty mounting bracket, universal for surface or pole mounting
• standard cable lengths 5 or 10 meter

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To ensure accurate measurements even with low temperature climatic conditions or during and after precipitations of snow, a version with heating system (HD2015R), automatically activated around +4 °C, has been developed to prevent snow deposits and ice formations.

The quantity of rainfall measured is based on the count of the number of times the bucket is emptied: the reed contacts, normally closed, open at the moment of the rotation between one bucket’s section and the other. The number of impulses can be detected and recorded by a data logger such as the HD2013-DB or by a pulse counter. But it is also possible to communicate directly the results through one of our dataloggers of the HD33 series. The built-in 4G/3G/GPRS modem makes it easy to upload the data directly to one of our cloud applications or to your own secured server.

When ordering, the rain gauge is completely setup to be used. Easy to install, adjustable feet and leveling device integrated. Bird spikes and accesories for raised mounting available.

A removable filter for periodic cleaning and maintenance is inserted in the water collector cone so as to prevent leaves or other elements blocking the end of the hole.

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