Monitoring the temperature of water

    I'd like to monitor the temperature of an indoor swimming pool water - much in the same way the Shelly H&T device does using a battery.

    The UNI seems like the way to go as it doesn't require mains voltage to operate.

    Has anybody managed this before - and does the UNI + water temperature probe work in the same way as the H&T by only connecting to Shelly Cloud and saving new temperature value when a change is detected over X degrees? Or will the battery life of a UNI be poor as always powered on and connected to the cloud?

    You’ll need a BIG storage battery if you intend to power a Shelly UNI with! Do some math calculations for yourself: The UNI need approximately 1W at 24/7 hours…

    „Habt Geduld. Alle Dinge sind schwierig, bevor sie einfach werden!“ (aus Frankreich)

    „Nothing in life is to be feared, it is only to be understood.“ (Marie Curie, 1867-1934)

    „Es reicht nicht“, rief Schiller, „Gedankenfreiheit zu fordern, man muß auch denken können, sonst fordert man Gedankenlosigkeitsfreiheit und die ist die Freiheit zur Dummheit, welche wiederum die schlimmste Unfreiheit überhaupt ist!“
    (Aus „Besuch aus Weimar“ von Gert Heidenreich, Schriftsteller, *1944 in Eberswalde)

    Zitat

    I'd like to monitor the temperature of an indoor swimming pool water

    Hi, I am onto something similar: I need to monitor water temperature in a steel grazing barrel and the trough to power on/off the
    aquarium heaters I have installed and hooked up to a Shelly Plus 1PM with a Shelly Plus Add-on.
    The Add-on can work with up to five DS18B20, I have ordered watertight DS18B20's with silicone cables and will see if that works.
    I am also thinking about monitoring the barrel water level, thgoebel brought me here to the "unis" :)

    The H&T runs with 4 AAA batteries and has 2 sensors extra to the Microcontroller (I guess they will not use the Microcontroller temperature, or?)

    Have you checked your H&T's, if you lift up/remove the small PCB on the backside I remeber there are some pins, maybe you could check if there is a way to hook up

    the 3 cables of a watertight DS18B20 somehow (I have no H&T right here at hand, sry)?