TE525WS-L Rain Gage with 8 in. Orifice
Conforms to National Weather Service Recommendation
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The TE525WS, manufactured by Texas Electronics, is a tipping-bucket rain gage that conforms to the National Weather Service recommendation for an 8 in. funnel orifice. It measures rainfall in 0.01 in. increments. This tipping bucket is compatible with all Campbell Scientific dataloggers, and it is widely used in environmental monitoring applications.

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Benefits and Features

  • Compatible with most Campbell Scientific data loggers
  • Accuracy is ±1 percent at rates up to 1 in./hr
  • High precision—tips at 0.01-in. increments
  • Directly compatible with the CS705 Snowfall Adapter allowing the TE525WS to measure the measure the water content of snow
  • Conforms to the National Weather Service recommendation for an 8-inch funnel orifice
  • Compatible with the CWS900-series interfaces, allowing it to be used in a wireless sensor network


Detailed Description

The TE525WS funnels precipitation into a bucket mechanism that tips when filled to its calibrated level.  A magnet attached to the tipping mechanism actuates a switch as the bucket tips. The momentary switch closure is counted by the pulse-counting circuitry of our data loggers.


Sensor Type Tipping bucket with magnetic reed switch
Material Anodized aluminum
Operating Temperature Range 0° to 50°C
Resolution 1 tip
Volume per Tip 8.24 ml/tip (0.28 fl. oz/tip)
Rainfall per Tip 0.254 mm (0.01 in.)
Measurement Uncertainty 1.0% up to 50 mm/h (2 in./h)
Cable Type 2-conductor shielded
Orifice Diameter 20.3 cm (8 in.)
Dimensions 21 x 21 x 26.7 cm) (8.25 x 8.25 x 10.5 in.)
Cable Weight 0.1 kg (0.2 lb) per 3.05 m (10 ft) length
Tipping Bucket Weight 1.0 kg (2.2 lb)


Please note: The following shows notable compatibility information. It is not a comprehensive list of all compatible products.


Product Compatible Note
CR1000 (retired)
CR3000 (retired)
CR800 (retired)
CR850 (retired)

Additional Compatibility Information


The TE525WS rain gage mounts to a CM300-series Mounting Pole or a user-supplied 1.5” IPS pole. Several pedestal options are available to secure a CM300-series pole to the ground (see Ordering Information). Accurate measurements require the gage to be level.

Snowfall Adapter

The TE525WS is directly compatible with the CS705 Snowfall Conversion Adapter. The CS705 uses PG:E antifreeze to melt snow, allowing the TE525WS to measure the water content of snow.

Wind Screen

Campbell Scientific offers the 260-953 Wind Screen to help minimize the affect of wind on the rain measurements. This wind screen consists of 32 leaves that hang freely and swing as the wind moves past them.

Casos de estudio

Pennsylvania: University Weather Station
The Geography Department at Bucknell University has implemented a weather station to obtain meteorological data......read more