Review on 🌡️ Mini Thermometer Hygrometer 5 Pack – Small Digital Temperature Humidity Meters Gauge for Indoor Outdoor Use – LCD Display Monitor in Fahrenheit (℉) – Ideal for Humidors, Greenhouse, Home, Room, Cellar, Fridge by Nick Reddy

My apartment has a lot of walls and is on the 3rd floor, so it's impractical to cool down in it. I bought it and placed it around the house to see where the air conditioning is and isn't and it's perfect. I like to check the humidity because sometimes when it's not humid I just need a fan to cool me down, not air conditioning. When I got them in the mail I put them on the table together and they all showed within 1% for humidity and within 1° for temperature. I put one of these right on top of my digital heating thermostat in my hallway and they always show an error of about 1.5° so I'd say they're pretty accurate. I would definitely buy them again if needed.