GILL INSTRUMENTS: TRUSTED GLOBALLY IN METEOROLOGICAL SENSING
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TrueMet PW100 is an infrared optical rain gauge that delivers a modern, low-maintenance alternative to tipping buckets. It gives you the accuracy you need, the reliability you expect, and none of the ongoing costs you shouldn’t have to pay. Rainfall measurement shouldn’t rely on 50-year-old mechanics.
Low-maintenance operation
No buckets. No bearings. No recalibration cycles. Just consistent data – every minute, every storm.
Long-term cost efficiency
Cuts ongoing cost through zero moving parts, no recalibration, no clogging-related callouts, longer service intervals, andd Faster field deployment
Easy network integration
Designed with tipping bucket type output to be a direct replacement: No complex programming, minimal amount of power to the sensor, up and running in minutes.
Discover how TruMet PW100 can modernise your operation.
A modern optical rain gauge built for accuracy and uptime
TrueMet PW100 is a solid-state, optical rainfall sensor designed to replace the limitations of tipping buckets with a high-precision, low-maintenance alternative.

Complete technical specifications, performance data, and integration details.
Whether you manage national networks, critical infrastructure, renewables, flood modelling, or smart-city systems, the PW100 delivers what older gauges can’t – accuracy in the extremes, reliability without moving parts, and the freedom from continuous maintenance cycles.

Dedicated rainfall sensor. Add to existing systems or replace failing tipping buckets.


Full environmental monitoring. Six sensors, one station, complete weather data.
