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ARG100 Tipping Bucket Raingauge (0.2mm/tip)
Aerodynamic minimise errors due to air flow disruption
weather applications supported water applications supported energy applications supported gas flux & turbulence applications supported infrastructure applications supported soil applications supported


The ARG100 precipitation sensor is our cost-effective solution to your measurement needs because it is manufactured in U.V.-resistant plastic by high precision vacuum-forming techniques. This allows the instrument to be robust yet still maintain all-important measurement accuracy and precision.

The ARG100 aerodynamic precipitation sensor (rain gauge), manufactured by EML in the UK. A conventionally shaped instrument interferes with the airflow around the sensor’s orifice so that the catch is reduced (as much as 25% of catch in windy conditions), and therefore precipitation measurements are significantly underestimated. The cost-effective ARG100 has been scientifically designed and developed to minimise this effect.

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Benefits and Features

  • Low power - suitable for remote applications
  • Sensor design minimizes airflow disruption at measurement volume


Technical Description

This instrument utilises the well-established measuring principle of the “tipping bucket” mechanism. This is both the industry and scientific standard for measuring precipitation, and it provides a contact closure at each tip. This is compatible with all loggers, event recorders and data acquisition systems for a wide range of applications.

The ARG100 is capable of measuring intensities up to a limit of approximately 500mm/hr. A rainfall Intensity adjustment formula is available for the ARG100 by request or from the EML website (


Funnel diameter 254 mm
Overall Height 340 mm
Tip sensitivity Standard setting 0.20 mm of rain per tip (other setting 0.25 mm per tip; please specify with order)
Maximum rainfall rate 500 mm/hr (with software correction)
Output Contact closure at tip
Cable 6 m (other lengths available to order)
Weight 1.0 kg


CR200(X) Series CR800/CR850 CR1000 CR3000 CR6 CR9000X

Compatible Retired Dataloggers

CR500 CR510 CR10 CR10X 21X CR23X CR7X CR9000 CR5000

Case Studies

Norfolk Agricultural monitoring station with Konect
The John Innes Centre (JIC) is an independent, international centreof excellence in plant science and microbiology more