
Everything seemed to work. I took it outside at about 40F outside and got back in before 70F, the CO2 sensor and TVOC showed dangerous levels. I'm using it now and it keeps showing wrong data compared to my other CO2 sensor (a bit more expensive). My recommendation is to spend more money to get reliable data. I'll run this for a few days to see if the CO2 data normalizes.

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

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

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

π² Johnson RAS-1B Johnny Square: Professional Aluminum Rafter Square, 7'', Silver - Top Quality with 1 Square
8 Review