Sainlogic Air Quality Monitor Indoor, 16 in 1 VOC Meter, CO2, HCHO, TVOC, PM2.5, PM1.0, PM10, Humidity, Temperature, 7.2" Large Display 3-Color AQI Alerts Air Quality Tester for Home Air Monitor

Testo 605i Thermohygrometer - Hygrometer & Indoor Thermometer for Humidity Measurement and Indoor Temperature - 90° Bendable In-Duct Temperature and Humidity Monitor with Bluetooth - iOS & Android

★ 9.4/10

Atmotube PRO 2 Battery Powered Portable Outdoor and Indoor Professional Air Quality Monitor [PM, CO2, VOCs, NOx, Temperature, Humidity and Barometric Pressure Tester], Pollution Meter

★ 8.8/10

Govee WiFi Thermometer Hygrometer H5179 with App Notification Alert 2 Pack | Humidity temperature sensor, portable. Wireless remote monitor greenhouse, incubator, wine cellar with 2-yr data

★ 8.6/10

Temtop Professional Air Quality Analyzer & CO2 Monitor Particle Counter

★ 8.6/10

GoveeLife 2.0 WiFi Hygrometer Thermometer with Gateway, Mini Sensor 3-Pack | Temperature and humidity monitor with APP alert, 2yr data & battery, indoor for wine cellar/bedroom/basement, 2.4G Wi-Fi only

★ 8.6/10

AprilAire ZAWTHCPV Smart Indoor 5-in-1 Wi-Fi Air Quality Monitor (CO2, VOC, PM 2.5, Particulate Matter, Humidity and Temperature), App Controlled IAQ Monitor for Home Air Quality Sensor

★ 8.6/10