Holman Professional Twin Rain Gauge Cylinder 250mm Rainfall Collector with Overflow (SKU: RGC1000)

Monitor rainfall like a pro with the Holman Professional Twin Rain Gauge – your backyard’s personal meteorologist!

This professional-grade rain gauge is designed to deliver highly accurate rainfall readings with a smart twin-cylinder system. The inner tube provides precise measurements up to 25mm using easy-to-read 1mm increments. Once full, excess rainwater overflows into the outer cylinder, allowing a total capacity of up to 250mm.

Its large surface funnel design ensures better rain catchment, even during intense storms. Simply pour the overflow back into the calibrated measuring tube for a complete and accurate reading.

Key Features:

• Measures up to 250mm of rainfall in total
• Calibrated measuring tube with 1mm precision
• Overflow collection in secondary cylinder
• Large funnel for improved catchment area
• UV-stabilised for long-term outdoor use
• Comes with stainless steel mounting screws
• Includes rainfall chart to record data

Perfect for home gardeners, schools, weather hobbyists or anyone needing accurate rainfall data. Whether you’re tracking drought or celebrating a good soaking, the Holman Twin Rain Gauge makes it easy and reliable.

FAQs

Q: How do I take a rainfall reading?
A: Check the inner measuring tube first. If it’s full, pour the overflow from the outer cylinder back into it and read the total from the combined volume.

Q: Is it easy to install?
A: Yes. It comes with stainless steel screws for simple mounting on a post, fence or garden bed.

Q: Can this be left outdoors year-round?
A: Absolutely. It’s made from UV-stabilised materials designed for long-term outdoor exposure.

Q: What is the rainfall chart used for?
A: The included chart allows you to log daily, weekly, or monthly rainfall to track patterns or compare seasonal changes.

Evaluation & Recommendation

Best Suited For:

• Home gardeners monitoring rainfall for irrigation planning
• Weather enthusiasts and citizen scientists
• Schools and education programs involving meteorology
• Anyone living in variable climates or remote areas

May Not Suit:

• Tech-focused users needing app-based digital tracking
• People preferring automated wireless weather stations

Installation Tips:

1. Mount in an open area, away from trees or roofs that may block or funnel water
2. Use the included screws to attach it to a post or stake
3. Ensure it’s upright and level for accurate readings
4. Record rainfall daily using the included chart for best tracking

For those who need more advanced metrics or remote monitoring, consider pairing it with a digital rain gauge or wireless station from our weather range.