Texas Electronics Rain Gauges use serial numbers which are tracked to their pulse output. The serial can be found on the outside of the rain bucket.
By calling their support desk the pulse ooutput can be looked up: (800) 424.5651
Texas Electronics Rain Gauge website: https://texaselectronics.com/products/rain-gauges.html
| 4 inches | 6 inches | |||
| TR-525I | TR-525USW | TR-525M | ||
| 1 pulse per | 0.01" | 0.01" or 0.2mm | 0.01" or 0.2mm | 0.1" |