SONOFF Zigbee Indoor Temperature Humidity Sensor, SNZB-02D LCD Wireless Smart Thermometer Hygrometer, Compatible with Alexa & Google Home for Remote Monitoring and Home Automation, 2-Pack

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

★ 9.6/10

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

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

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 Air Quality Monitor PM2.5 PM10 Particle Counter, Formaldehyde, Temperature, Humidity, TVOC AQI Tester for Indoor/Outdoor Air Pollution Detection w/Data Export

★ 8.4/10

Amazon Smart Air Quality Monitor – Know your air, Works with Alexa

★ 8.4/10