TruMet 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, and 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.

TruMet PW100 is a solid-state, optical rainfall sensor.
A modern optical rain gauge built for accuracy and uptime

TruMet PW100 is a solid-state, optical rainfall sensor designed to replace the limitations of tipping buckets with a high-precision, low-maintenance alternative.

• Zero moving parts – No mechanical wear, no drift
• No clogging – no funnels, no collection chambers
• Accurate across the full rainfall spectrum – From drizzle to high-intensity events
• True maintenance savings – Operational cost reduction across regional networks
• Rapid deployment – Lightweight, compact, easy to install
• Consistent long-term performance – Designed for long life reliability
• Lower lifetime cost vs tipping buckets – Fewer callouts, fewer replacements

Real World Applications
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.

• Meteorological agencies High-resolution rainfall data at national scale without the operational burden
• Renewable energy operators Weather-dependent asset protection with reliable precipitation input
• Smart city programmes Low-maintenance rainfall nodes for dense urban networks
• Flood forecasting & emergencies response teams Sharper data for faster, more accurate modelling in extreme events
• Transport & aviation authorities Track sudden rainfall changes affecting safety and operations
• Universities & research institutes Precision data for climate studies, hydrology, and environmental modelling