tipping bucket rain gauge resolution 0.1 mm typical

The main difference shows up during light rain. With 0.1 mm per tip, you get a finer record—a drizzle that yields 0.3 mm total will register three tips instead of one or none on a 0.5 mm gauge. This matters for evaporation studies, early detection of precipitation, and high-quality climate records. The trade-off is a slightly higher maximum tip rate, but modern electronics handle that easily. For most hydrological applications, 0.2 mm is sufficient, but 0.1 mm provides extra detail when needed.

Almost any logger that counts switch closures. The gauge outputs a dry contact pulse, so you need a logger with a digital input or a counter channel. Low-power loggers with a pull-up resistor work well. If your logger has a fixed sample interval that might miss quick tips, ask about a pulse divider option to accumulate counts. Kingmach can also provide a signal conditioner if your setup requires a 4-20 mA or Modbus interface instead of raw pulses.

With a clean funnel and intact mechanics, the factory calibration typically holds for years. Field calibration is possible using a tipping bucket calibrator or a known water volume and a stopwatch—adjustment screws are accessible under the cover. We recommend a check at installation and then annually if the gauge sits in a high-debris environment. The built-in leveling bubble helps ensure the gauge stays level, which is critical for consistent bucket volume.

It works, but with some preparation. In dusty areas, the funnel screen requires periodic cleaning. For freezing climates, many users pair it with a heated funnel or jacket—we can supply a version with an integrated heating element. The tipping mechanism itself doesn’t freeze easily if the drain path remains open. Make sure the mounting allows for some thermal insulation under the base plate to reduce frost bridging.

Yes, customization is a standard part of our work. Options include non-standard cable lengths, specific connectors, mounting masts for different pole diameters, funnel extensions for high-wind areas, and even dual-reed switches for redundancy. We also offer labeling and documentation to match your project naming conventions. The timeline depends on the changes, but most customizations add only a few days to delivery.