8'' Collector Rain Gauge

The Texas Electronics, Inc. TR-525USW Rainfall Sensor with 8" diameter funnel is a remote tipping bucket style rain gauge that measures liquid precipitation.

The Rain Gauge is a freestanding receptacle for measuring precipitation. Through an opening at the top of the device, rain is collected and then funneled to a mechanical device, called a tipping bucket. As water is collected, the tipping bucket fills to the point that it tips over, causing a momentary closure of a switch to incrementally measure rainfall accumulation. This action empties the bucket in preparation for additional measurement. Water discharged by the tipping bucket passes out of the rain gauge with no need for emptying.

The TR-525USW is specifically designed to meet the National Weather Service's requirements for rainfall measurement.

Availability: In stock

Bulk Discounts Available
  • Buy 5 for $419.90 each and save 5%
  • Buy 15 for $408.85 each and save 7.5%
  • Buy 30 for $397.80 each and save 10%
  • Buy 100 for $386.75 each and save 12.5%

Other calibrations available on request.

Stock is single reed switch but if you like we will install a dual reed switch.

Should be used where snow or freezing weather may occur. It consists of two low-power heating elements that prevent disruption in readings during freezing times. The heaters are thermostatically controlled with an additional thermal overload. More information available under downloads tab.

This allows an extended range of accuracy. This system allows control of the "flow rate" of accumulated precipitation. This metering geometry assures higher levels in both accuracy and repeatability during periods of extremely heavy rainfall. More information available under downloads tab.

All our 525 rain gauges are factory calibrated. Option 1. If you would like the printed certificate included. OR Option 2. If you would like to prepay for 3 separate facory calibrations when you send in your gauge for recalibration we offer it at a discount.

This data logger can record rainfall rates, times and duration. The included memory stores over 16,000 tips. More information available under related products

Helps to keep birds from perching on rim of collector

The FC-500 Field Calibration Kit is designed to be a field verification of accuracy for all our rain gauge sensors. This unit is not intended to substitute a dynamic laboratory calibration; however it is a great indicator of accuracy.

This upgrade consists of sapphire pivots, highly polished stainless steel shaft ends, and an enhanced bucket finish to improve consistent water shedding.

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TR525 USW rain gauge

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  • TR525 USW rain gauge
  • angled view of TR525 USW rain gauge
  • View of TR525 USW rain gauge with collector removed
  • View of TR525 USW tipping assembly in rain gauge

Additional Information

Resolution 0.01" or 0.2 mm
Accuracy 0-2 in. (50 mm) per hour; +/-1%
Collector Diameter 8.00" (203 mm) with knife-edge
Funnel Depth 6.4" (163 mm)
Splash out Protection >2" (50 mm)
Operating Temp 32 to 158°F (0 to 70°C)
Storage Temp -40 to 185°F (-40 to 85°C)
Humidity Limits 0 to 100%
Weight 1.8 lbs.
Height 11.125"
Cable 10', 24 gauge 2 conductor
Switch Momentary potted reed switch
Switch Rating 30 VDC @ 2 A, 115 VAC @ 1 A
Switch Closure Time 135 ms
Bounce Setting Time 0.75 ms
Pivot Ground bronze pivots with hardened stainless steel shaft
Bucket Black PP injection molded
Level Integral Bubble Level
Range 27" (700 mm) per hour
Warranty 3 years
Heater A rain gauge heater, HT-525, is available where snow or freezing weather may occur. It consists of two low-power heating elements that prevent disruption in readings during freezing times. The heaters are thermostatically controlled.
Weather Underground PWS KTXDALLA436