
These things are great and lots of fun! I was also able to cut the wire between the temp sensor and the board so I could solder a longer wire and keep them further apart and it still worked fine. Google for more instructions on how they work as there are many non-obvious features. There's a whole menu accessed by holding the button down, with about 10 settings or so, where you can control all sorts of things like the power-on delay and the temperature difference between turning it on and off. They have many features that I didn't know when I first bought them. What you need for Google is "W1209"

VIVREAL 4 In 1 Stud Finder Wall Scanner With LCD Display - Center Finding Beam Finder And Sound Warning For Wood, AC Wire, And Metal Studs (Black/Silver)
24 Review

Xiaomi iHealth Meter Thermometer White
24 Review

Thermometer B.Well WF-4000 white
57 Review

Room temperature and humidity sensor Aqara Temperature and Humidity Sensor white
25 Review

π CAMWAY 6 Inch Digital Caliper with LCD Display, Electronic Vernier Caliper, 150mm Stainless Steel Feeler Gauge, Plastic Digital Caliper Set for Zero Setting Inside/Outside Diameter, Depth, and Step Measurement Tool
3 Review

π Johnson Level and Tool 400EM-S 12-Inch Heavy Duty Metal Combination Square for Professionals, with Inch/Metric Measurements, Silver - 1 Square
8 Review

Triangle Group TR918 225/45 R18 95V summer
61 Review

Kapro - 353 Professional Ledge-It Try & Mitre Square - For Leveling And Measuring - Features Stainless Steel Blade, Retractable Ledge, And Etched Ruler Markings - 12 Inch
23 Review