Meggsi 2 Pack Mini Digital Hygrometer Gauge Indoor Thermometer, LCD Monitor Temperature Outdoor Humidity Meter for Greenhouse Jars Incubators Guitar Case, Fahrenheit (℉) or Celsius(℃)

These were exactly what I needed. They give a good reading of humidity and they fit almost anywhere.

Readability is good! It came with batteries and an extra one and an adhesive that sticked pretty well. I use it for 3d pretty to check if the room is too cold. Really useful to adjust the temperature of the printer. It works well and it seems like good quality. Showed the temperature and humidity. It's small and easy to mount.

Muy precisos y vienen con baterías nuevas. Funcionan muy bien y son sumamente confiables.

good and handy, its not so precise but serves the prupose and justifies the price. I kept two of these devices next to each other and there is 1% difference in humidty and 0.5% difference in temprature reading of both devices. Overall its good.

Low cost but effective items to stick in every room. Allows us to monitor humidity in each area and also see temperature.