Connected three of them to ESP3266 for hot tub temp control. I tested all three in one place first and all their temperatures matched, and also with another thermometer I had tested with. Now placed in the bath, they are all lined up again with the other temperature sensors. the possibility of remote monitoring was very practical. For reference, I used ESPHome to program the ESP3266 and Home Assistant to display the sensor readings. Very simple construction.
📏 Johnson Level and Tool 400EM-S 12-Inch Heavy Duty Metal Combination Square for Professionals, with Inch/Metric Measurements, Silver - 1 Square
8 Review
🔲 Johnson RAS-1B Johnny Square: Professional Aluminum Rafter Square, 7'', Silver - Top Quality with 1 Square
8 Review
Triangle Group TR918 225/45 R18 95V summer
61 Review
➕ Stainless Steel L-Square, Size 3-Inch x 4-Inch, Zona 37-434
8 Review