Rain Gauge, TR-525I, Heated

The Texas Electronics, Inc. TR-525I Rainfall Sensor is a remote tipping bucket style rain gauge that measures the amount of liquid precipitation. The Rain Gauge is a freestanding receptacle for measuring precipitation.


It contains an open top, which allows rainfall to fall into the upper portion, which is called the collector. Collected water is funneled to a mechanical device (tipping bucket), which incrementally measures the rainfall accumulation and causes a momentary closure of a switch. As water is collected, the tipping bucket fills to the point where it tips over. 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-525I was designed to meet the need for a rugged and reliable rain gauge tipping bucket with high accuracy and low cost.


This unit is a TR-525I equipped with a rain gauge heater, the HT-525, for use where snow or freezing weather may occur. The rain gauge heater assessory consists of two low-power heating elements that prevent snow or sleet from accumulating in the collector and disrupting rainfall readings. The heater are thermostatically controlled with an additional thermal overload. The heater are ideally balanced to keep the gauge clear at all times yet minimize the amount of evaporation. 

Availability: In stock

$655.00
Bulk Discounts Available
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Rain Gauge, TR-525I, Heated

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Additional Information

Resolution 0.01" English; 0.2 mm (optional)
Accuracy 0-2 in. (50 mm) per hour; +/-1%
Collector Diameter 6.06" (163 mm)
Funnel Depth >6.5" (165 mm)
Splash out Protection >2" (50 mm)
Operating Temp 32 to 158°F (0 to 50°C)
Storage Temp -40 to 185°F (-40 to 70°C)
Humidity Limits 0 to 100%
Weight 4 lbs.
Height 10.25"
Cable 25', 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 ABS injection molded
Level Integral Bubble Level
Power 120 VAC
Current 1.65 A
Starting Temperature 45°F (7.2° C)
Minimum Temperature -65°F (-54°C)
Range 27" (700 mm) per hour
Warranty 3 years