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I love the TROPO gauge. I have one and it works great (I am a CoCoRaHS member).

I've had a Tropo guage for a few months now and its great, good job guys. Also I am now your 50th subscriber!

Hmm, Those bird spikes don't block the rainfall?

I just got mine in the mail. As a sod farmer will be nice to know an exact amount of rain, plus will be handy to dial in our center pivot and traveling sprinklers.

The test with the 206 ml is for cylinder gauge with a diameter of 4in or 10.16 cm Both Stratus and Tropo have a diameter of 3.976in or 10.09cm The cylinder volume formula is V=h*π*r2... so h=v/πr2 I measured carefully the diameter in both guages and are exactly 10.1cm or 3.976in According to the formula , 200 ml of water in a 10.1cm diameter cylinder measures the equivelant of 24.963 mm of water Using a professional pharmasist glassy volume tube 100ml with +/- 1ml error at 20c , 200 ml in the stratus gauge measures exactly 25.2mm of water and the Tropo 24.6 mm.

Excited to get mine. Wife ordered it for my birthday which is coming up soon. 15+ years with CoCoRaHS.

*Promo sm*

Overall this was a great video about the new TROPO rain gauge, which looks like a major improvement on the previous CoCoRaHS design. I think the best new features are the dual customary and metric scales and especially the integrated funnel for the inner cylinder, eliminating a major headache. One quibble with the unboxing video is that the narrator should have discussed the maximum capacities and a few other parameters in metric as well as customary terms, since quite a few CoCoRaHS observers report in metric (not all of them Canadians, either).

You can't have it both ways. You actually left a gauge out of your experiments. A NWS gauge that has a diameter of 8". Whichever gauge has the same results as the NWS gauge, is the gauge that everyone should be using.

Given that you used a scale approved by CoCoRaHS that has merely a 1 gram resolution, there was really little reason to worry about the density of water. Typically my rain water here in NH is between 0°F and 70°F. From the table you found, the density of 70°F water is 0.99802, so 206 ml of water will have a mass of 205.588, which should still display 206 on your scale. So, for your experiment, you could get away with rounding 0.99802 to 0.998 and even just 1.00, i.e. don't worry about it, especially since you used "cold tap water." Secondly, the video says you were measuring mass. No! Scales like what you used measure the force, i.e. weight of an object, with a strain gauge. It just reports the weight converted to grams at the 9.8 m/s^2 acceleration of gravity. To measure mass, you should used something like a double pan device or something with sliding weights like old doctor's scales. Those will measure the same mass on the moon as they would on Earth. Strain gauges are more accurate than old spring based scales, so they work fine on Earth. If you're nuts (like me), there are inexpensive scales with a 0.01g resolution. I used one in my analysis, which essentially confirmed your 2nd and 3rd experiments. See wermenh.com/tropo/ Personally, I think we should move from reading volumetric scales and measure rainfall by weight. Simpler, more accurate, less lossage, less expensive too, especially if you're using the scale in the kitchen for recipes. When I get a chance, I'm going to take an old funnel and attach tubes to fill an old soda bottle and let out displaced air. Easy to change, even in a rain storm, low evaporation, a fine hack.

Interesting accent. Is the speaker AI or Irish, or???

As a CoCoRaHS observer, I will buy a Tropo this summer

wow, you thought of everything that was a minor annoyance with the other CoCorahs gauge.

It looks like there was a lot of thought put into this product. Looking forward to getting it soon!

Looking forward in getting new Gauge I just Relocated my CoCoRaHS Gauge to a 6 Foot 4X4 Post next to my NWS COOP Station CPMK1 KS-DK-65 CoCoRaHS County Coordinator

Very nice! As we head into our spring/summer, looking forward to having the TROPO mounted and giving accurate precipitation readings.

Thank you for stopping by the Climalytic RUclips channel! We are super excited to ship out the first TROPOs very soon! Pre-order yours today at store.climalytic.com/

I'm ready! #TN-PM-5 💪🌧️ #CoCoRAHS

Welcome to the channel! Thanks for watching and stay tuned!