It started raining an hour after receiving the rain gauge. It collected just a bit over 0.20". My Accurite weather-station about 10' away registered 0.22".
It works well up to 1" of rain but I had wondered in advance how it measures rain over 1". Water flows from the top funnel into the center tube which has a raised 10" scale with increments of 0.01" (hundredth) on the side. So each 0.1" on the scale is 0.01" of rain. It is marked for up to 1". If more than 1" of rain is collected it overflows from the inner measuring tube into the larger outer tube.
So how is the additional rain over 1" measured? Well there is no scale for the additional rain on the outer tube. Why not? According to the instructions, you pour the water out of the inner measuring tube and then pour water from the outer tube into the inner measuring tube and add that amount to the initial 1".
However, there is a problem in this regard as can be seen in my second photo. There is a slit in the top of the measuring tube that allows water to flow out and not over the top which is about 0.25" above the top of the scale. As can be seen in the second photo, when water flows out, the surface is about the equivalent of 0.02" above the top of the scale. So measurements over 1" will actually be about 1.02". I find this strange for a measuring instrument that says on the side: "The Professional Rain Gauge". Why was the slit not made deeper so that the surface of the water would be exactly 1" and not about 1.02"? Of course it wouldn't be difficult to make the slit a bit deeper with a file but why isn't a $42 piece of plastic manufactured accurately?
The total capacity of the gauge is 11" of rain. It would definitely not be convenient to measure multiple inches of rain by carefully filling the measuring tube multiple times. The outer diameter of the gauge is 4.25". My fingers reach exactly halfway around it. I can just barely hold it securely - especially if there is quite a bit of water in it. The large tube doesn't have a spout and the diameter of the measuring tube is just 1.25". When trying to pour water from the large tube into the small measuring tube it's easy to miss it. If you pour too fast, it will go past the opening. If you pour too slowly, the water will dribble down the side of the large tube. If either of those happen, the measurement will be inaccurate.
This didn't need to be an issue. As can be seen in my third photo, the amount of overflow water can also be measured on the scale. In the photo there are 2" of overflow water. Since the large tube holds more water, each increment could represent 0.1" instead of 0.01". Sure, that would be less accurate but it would definitely simplify the measurement. But alas - each inch isn't 10 increments. For the photo I added the equivalent of 2" of rain but unfortunately the water level is at about 22.5. Why wasn't it designed to show 10, 20 or 30... for an additional 1", 2" or 3"?
This rain gauge comes with a list of the individual pieces including part numbers in case one needs to be replaced. That is good. But they also offer another measuring tube in milimeters (mm). Why don't they manufacture a measuring tube with both scales on it? That would be very convenient if a person wants to collect rain water and store it in a cistern. 1mm of rain per square meter equals 1 liter of water. So for example, if a roof is 100 square meters and 6mm of rain falls, 600 liters of rain would be collected. That can be easily calculated in your head. In contrast, try that calculation with 0.25" of rain, square footage of roof area and gallons of storage.
This rain gauge is very accurate and easy to use for up to 1" of rain. Over 1" of rain the gauge could be 2% less accurate and definitely less convenient. It is currently rainy season and I will be testing and comparing this rain gauge with my Accurite weather station to determine how much less accurate my weather station is.
Another easier method to measure the rain would be to put a container on a digital scale, reset it to zero and then pour the rain water in. On my cheap kitchen scale 1" of rain is 202g. For example, divide 32g by 2 and the result is 0.16".
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This Item  KEXMY Stratus Precision Rain Gauge with Mounting Bracket (14" All Weather) |  |  |  |  |  | |
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Reviews with images
Works well up to 1" of rain but...
It started raining an hour after receiving the rain gauge. It collected just a bit over 0.20". My Accurite weather-station about 10' away registered 0.22".It works well up to 1" of rain but I had wondered in advance how it measures rain over 1". Water flows from the top funnel into the center tube which has a raised 10" scale with increments of 0.01" (hundredth) on the side. So each 0.1" on the scale is 0.01" of rain. It is marked for up to 1". If more than 1" of rain is collected it overflows from the inner measuring tube into the larger outer tube.So how is the additional rain over 1" measured? Well there is no scale for the additional rain on the outer tube. Why not? According to the instructions, you pour the water out of the inner measuring tube and then pour water from the outer tube into the inner measuring tube and add that amount to the initial 1".However, there is a problem in this regard as can be seen in my second photo. There is a slit in the top of the measuring tube that allows water to flow out and not over the top which is about 0.25" above the top of the scale. As can be seen in the second photo, when water flows out, the surface is about the equivalent of 0.02" above the top of the scale. So measurements over 1" will actually be about 1.02". I find this strange for a measuring instrument that says on the side: "The Professional Rain Gauge". Why was the slit not made deeper so that the surface of the water would be exactly 1" and not about 1.02"? Of course it wouldn't be difficult to make the slit a bit deeper with a file but why isn't a $42 piece of plastic manufactured accurately?The total capacity of the gauge is 11" of rain. It would definitely not be convenient to measure multiple inches of rain by carefully filling the measuring tube multiple times. The outer diameter of the gauge is 4.25". My fingers reach exactly halfway around it. I can just barely hold it securely - especially if there is quite a bit of water in it. The large tube doesn't have a spout and the diameter of the measuring tube is just 1.25". When trying to pour water from the large tube into the small measuring tube it's easy to miss it. If you pour too fast, it will go past the opening. If you pour too slowly, the water will dribble down the side of the large tube. If either of those happen, the measurement will be inaccurate.This didn't need to be an issue. As can be seen in my third photo, the amount of overflow water can also be measured on the scale. In the photo there are 2" of overflow water. Since the large tube holds more water, each increment could represent 0.1" instead of 0.01". Sure, that would be less accurate but it would definitely simplify the measurement. But alas - each inch isn't 10 increments. For the photo I added the equivalent of 2" of rain but unfortunately the water level is at about 22.5. Why wasn't it designed to show 10, 20 or 30... for an additional 1", 2" or 3"?This rain gauge comes with a list of the individual pieces including part numbers in case one needs to be replaced. That is good. But they also offer another measuring tube in milimeters (mm). Why don't they manufacture a measuring tube with both scales on it? That would be very convenient if a person wants to collect rain water and store it in a cistern. 1mm of rain per square meter equals 1 liter of water. So for example, if a roof is 100 square meters and 6mm of rain falls, 600 liters of rain would be collected. That can be easily calculated in your head. In contrast, try that calculation with 0.25" of rain, square footage of roof area and gallons of storage.This rain gauge is very accurate and easy to use for up to 1" of rain. Over 1" of rain the gauge could be 2% less accurate and definitely less convenient. It is currently rainy season and I will be testing and comparing this rain gauge with my Accurite weather station to determine how much less accurate my weather station is.Another easier method to measure the rain would be to put a container on a digital scale, reset it to zero and then pour the rain water in. On my cheap kitchen scale 1" of rain is 202g. For example, divide 32g by 2 and the result is 0.16".
Top reviews from the United States
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Reviewed in the United States on June 29, 2022
It started raining an hour after receiving the rain gauge. It collected just a bit over 0.20". My Accurite weather-station about 10' away registered 0.22".
It works well up to 1" of rain but I had wondered in advance how it measures rain over 1". Water flows from the top funnel into the center tube which has a raised 10" scale with increments of 0.01" (hundredth) on the side. So each 0.1" on the scale is 0.01" of rain. It is marked for up to 1". If more than 1" of rain is collected it overflows from the inner measuring tube into the larger outer tube.
So how is the additional rain over 1" measured? Well there is no scale for the additional rain on the outer tube. Why not? According to the instructions, you pour the water out of the inner measuring tube and then pour water from the outer tube into the inner measuring tube and add that amount to the initial 1".
However, there is a problem in this regard as can be seen in my second photo. There is a slit in the top of the measuring tube that allows water to flow out and not over the top which is about 0.25" above the top of the scale. As can be seen in the second photo, when water flows out, the surface is about the equivalent of 0.02" above the top of the scale. So measurements over 1" will actually be about 1.02". I find this strange for a measuring instrument that says on the side: "The Professional Rain Gauge". Why was the slit not made deeper so that the surface of the water would be exactly 1" and not about 1.02"? Of course it wouldn't be difficult to make the slit a bit deeper with a file but why isn't a $42 piece of plastic manufactured accurately?
The total capacity of the gauge is 11" of rain. It would definitely not be convenient to measure multiple inches of rain by carefully filling the measuring tube multiple times. The outer diameter of the gauge is 4.25". My fingers reach exactly halfway around it. I can just barely hold it securely - especially if there is quite a bit of water in it. The large tube doesn't have a spout and the diameter of the measuring tube is just 1.25". When trying to pour water from the large tube into the small measuring tube it's easy to miss it. If you pour too fast, it will go past the opening. If you pour too slowly, the water will dribble down the side of the large tube. If either of those happen, the measurement will be inaccurate.
This didn't need to be an issue. As can be seen in my third photo, the amount of overflow water can also be measured on the scale. In the photo there are 2" of overflow water. Since the large tube holds more water, each increment could represent 0.1" instead of 0.01". Sure, that would be less accurate but it would definitely simplify the measurement. But alas - each inch isn't 10 increments. For the photo I added the equivalent of 2" of rain but unfortunately the water level is at about 22.5. Why wasn't it designed to show 10, 20 or 30... for an additional 1", 2" or 3"?
This rain gauge comes with a list of the individual pieces including part numbers in case one needs to be replaced. That is good. But they also offer another measuring tube in milimeters (mm). Why don't they manufacture a measuring tube with both scales on it? That would be very convenient if a person wants to collect rain water and store it in a cistern. 1mm of rain per square meter equals 1 liter of water. So for example, if a roof is 100 square meters and 6mm of rain falls, 600 liters of rain would be collected. That can be easily calculated in your head. In contrast, try that calculation with 0.25" of rain, square footage of roof area and gallons of storage.
This rain gauge is very accurate and easy to use for up to 1" of rain. Over 1" of rain the gauge could be 2% less accurate and definitely less convenient. It is currently rainy season and I will be testing and comparing this rain gauge with my Accurite weather station to determine how much less accurate my weather station is.
Another easier method to measure the rain would be to put a container on a digital scale, reset it to zero and then pour the rain water in. On my cheap kitchen scale 1" of rain is 202g. For example, divide 32g by 2 and the result is 0.16".
It works well up to 1" of rain but I had wondered in advance how it measures rain over 1". Water flows from the top funnel into the center tube which has a raised 10" scale with increments of 0.01" (hundredth) on the side. So each 0.1" on the scale is 0.01" of rain. It is marked for up to 1". If more than 1" of rain is collected it overflows from the inner measuring tube into the larger outer tube.
So how is the additional rain over 1" measured? Well there is no scale for the additional rain on the outer tube. Why not? According to the instructions, you pour the water out of the inner measuring tube and then pour water from the outer tube into the inner measuring tube and add that amount to the initial 1".
However, there is a problem in this regard as can be seen in my second photo. There is a slit in the top of the measuring tube that allows water to flow out and not over the top which is about 0.25" above the top of the scale. As can be seen in the second photo, when water flows out, the surface is about the equivalent of 0.02" above the top of the scale. So measurements over 1" will actually be about 1.02". I find this strange for a measuring instrument that says on the side: "The Professional Rain Gauge". Why was the slit not made deeper so that the surface of the water would be exactly 1" and not about 1.02"? Of course it wouldn't be difficult to make the slit a bit deeper with a file but why isn't a $42 piece of plastic manufactured accurately?
The total capacity of the gauge is 11" of rain. It would definitely not be convenient to measure multiple inches of rain by carefully filling the measuring tube multiple times. The outer diameter of the gauge is 4.25". My fingers reach exactly halfway around it. I can just barely hold it securely - especially if there is quite a bit of water in it. The large tube doesn't have a spout and the diameter of the measuring tube is just 1.25". When trying to pour water from the large tube into the small measuring tube it's easy to miss it. If you pour too fast, it will go past the opening. If you pour too slowly, the water will dribble down the side of the large tube. If either of those happen, the measurement will be inaccurate.
This didn't need to be an issue. As can be seen in my third photo, the amount of overflow water can also be measured on the scale. In the photo there are 2" of overflow water. Since the large tube holds more water, each increment could represent 0.1" instead of 0.01". Sure, that would be less accurate but it would definitely simplify the measurement. But alas - each inch isn't 10 increments. For the photo I added the equivalent of 2" of rain but unfortunately the water level is at about 22.5. Why wasn't it designed to show 10, 20 or 30... for an additional 1", 2" or 3"?
This rain gauge comes with a list of the individual pieces including part numbers in case one needs to be replaced. That is good. But they also offer another measuring tube in milimeters (mm). Why don't they manufacture a measuring tube with both scales on it? That would be very convenient if a person wants to collect rain water and store it in a cistern. 1mm of rain per square meter equals 1 liter of water. So for example, if a roof is 100 square meters and 6mm of rain falls, 600 liters of rain would be collected. That can be easily calculated in your head. In contrast, try that calculation with 0.25" of rain, square footage of roof area and gallons of storage.
This rain gauge is very accurate and easy to use for up to 1" of rain. Over 1" of rain the gauge could be 2% less accurate and definitely less convenient. It is currently rainy season and I will be testing and comparing this rain gauge with my Accurite weather station to determine how much less accurate my weather station is.
Another easier method to measure the rain would be to put a container on a digital scale, reset it to zero and then pour the rain water in. On my cheap kitchen scale 1" of rain is 202g. For example, divide 32g by 2 and the result is 0.16".
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