ECOWITT WH40 Wireless Self-Emptying Rain Collector Rainfall Sensor - Accessory Only, Can Not Be Used Alone

This was a replacement as the first one failed after a few years in a challenging environment next to the sea.

Have had it for years. Good quality, never had any issues.

Fitted lithium batteries. They get drained to zero in a few days. Returned as not fit for purpose for full refund.

Der Niederschlagsmesser lässt sich gut montieren und liefert genaue Messwerte. Die Einbindung in Homeassistant ist einfach und funktioniert zuverlässig.

Muestra con precisión los datos de pluviométricos. Lástima que la app no se pueda asociar con Alexa para poder crear rutinas y avisos cuando llueve.

At first it seems like a good rain gauge. But in heavy showers it counts too little. The drops then bounce out because of the low rim and flat funnel. At Ecowitt you can buy an add-on edge that improves it somewhat. So They know the problem! Why is the design not adjusted or the border supplied??? But with the add-on edge, it still counts too little in heavy showers! Either the Edge is still too low or the clapper is too slow! So actually a bad design that can be adjusted with a little will from Ecowitt!

Bought it to supplement a different type of rain gauge on PWS. Just need it to rain now to test it.

I’m very pleased with the accuracy and the ease of setup. Just remember to NOT put batteries in until the unit is in position and stable otherwise all jiggling counts as rainfall.