The first two devices ICO and Flipr are actually intended to check the water quality, but also measure the temperature.
The Ecowitt WN63 Pool Thermostat is designed for pools, as the name suggests. It’s not separate listed in the Homey Misol and Ecowitt App in the App Store, but according to this discussion in the App topic (Link) it seems to work already.
The other two Ecowitt temperature sensors are not specific for pools, but they have a probe so that the probe can easily be placed in the water, while the batterie powered main device can be mounted outside of the pool. The WN34L seems to be listed in the App Store, the WN34D not. However, as it’s just also a temperature sensor, it’s probably also supported by the App.
What I don’t know is if the probes are also suitable for chlorinated water.
An additional gateway is required for all Ecowitt sensors, however. Please check yourself which gateway is required and if it’s supported by the Homey Misol and Ecowitt App.
