rain [e] - Weighing Precipitation Sensor

  • Amazing Resolution & Accuracy
  • Compact, Robust & Very Light Weight
  • Easy Installation & Maintenance
  • All-Metal Housing, Weatherproof & Durable
Product Options


The rain [e] precipitation sensor is the latest technology that combines a self-emptying precision bucket that provides high resolution and high precision at a very small construction level.

The rain [e] is suitable to set up new measurement networks as well as connecting to an existing rainfall measurement network.

The rain [e] is lightweight and compact in design with an all metal, weatherproof housing that is highly durable to withstand the harshest environments and weather conditions.

Manufactured by: Lambrecht
Model: rain [e] - Weighing Precipitation Sensor

Services offered for this product

  • Sales
  • Rental
  • Installation
  • Calibration
  • Maintenance


Classical meteorology & hydrology
Measuring networks of water suppliers
Lysimeter Systems
Sewage plants
Weather services
Traffic meteorology


rain [e], unheated
Measuring Principle Weighing with automatic self emptying
Operating Temperature 0...+70°C (unheated)
Collecting Area 200 cm2
Amount Measuring Range

without limitation (0.005...∞mm)

Amount Resolution 0.001 mm (pulse output: 0.1 mm)
Amount Accuracy

± 0.1 mm or ± 1% at < 6 mm/min and ± 2% at > 6 mm/min.

Signal Outputs

SDI-12 / RS-485 (SDI-12 protocol, ASCII protocol, TALKER protocol)

2 Pulse-Outputs for linearised, bounce-free output signal

Status-Output (cofigurable, e.g. rain yes/no or heating on/off)

Analogue output 0/4...20 mA (0...2.5/5V)

Supply Voltage 9.8... 32 V DC
Current Consumption

max. 45 mA at 24 V power supply and analogue output

typ. 6.5 mA at 24 V power supply and pulse output

typ. 10.5 mA at 12 V

Protection Class Weighing Cell IP67
Standards WMO-No. 8 VDI 3786 BI.7 EN 61000-2, -4 EN 61000-4-2, -3, -4, -5, -6, -11 NAMUR NE-21
Intensity Accuracy ± 0.1 mm/min resp. ± 6 mm/h
Intensity Resolutions 0.001 mm/min resp. 0.001 mm/h
Intensity Range 0...20 mm/min resp. 0...1200 mm/h
rain [e], heated
Target Temperature (heating) +2°C funnel surface temperature
Heating Power 80 W (funnel) 60 W (outlet / tipping bucket)
Supply Voltage 24 V DC / 2 heating circuits 80 W and 60 W
Operating Temperature -40... +70°C (no icing, no snowdrift)


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