ThailandAirGradient builds open-source indoor and outdoor air quality monitors that track PM2.5, CO2, temperature, humidity and other pollutants. The company is known for its open hardware and firmware, letting users build, repair and integrate the monitors with platforms like Home Assistant and its own dashboard. AirGradient appeals to people who want transparent, data-driven air quality monitoring rather than a closed black box.
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ChinaSonoff, a brand of ITEAD, makes affordable smart home devices including Wi-Fi and Zigbee switches, smart plugs, relays, sensors and the ZBBridge and Zigbee dongles. Its products work through the eWeLink app and integrate with Alexa and Google Home, and are popular with DIY users and Home Assistant fans for low-cost automation. Sonoff is well known for budget-friendly switches and Zigbee hardware.
View SonoffEvery product, compared
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CamerasSonoffCam Slim Gen2
$19.90
CamerasSonoffGK-200MP2-B
30% OFF$9.99$6.99
DisplaysSonoffNSPanel Pro
$129.90
DonglesSonoffDongle Lite MG21
$19.90
DonglesSonoffDongle Max
€45.02
DonglesSonoffDongle Plus MG24
$35.90
DonglesSonoffDongle-PZG23
$39.90
DonglesSonoffZBDongle-E
$26.99
DonglesSonoffZBDongle-P
$39.99
Door & Window SensorsSonoffDW2-WIFI
$12.23
Door & Window SensorsSonoffSNZB-04 ZigBee Wireless Door/Window Sensor
$17.99
Door & Window SensorsSonoffSNZB-04P ZigBee Door/Window Sensor
$18.99
Door & Window SensorsSonoffSenseGuard DW Gen2
€40.91
HubsSonoffiHost
$89.99
HubsSonoffZigbee Bridge Pro
$24.90
HubsSonoffZigbee Bridge Ultra
$54.99
LED BulbsSonoffWi-Fi Smart LED Bulb - Warm & Cold
$8.90
LED BulbsSonoffWi-Fi Smart LED Bulb - Color - A19
$13.92
LED BulbsSonoffWi-Fi Smart LED Bulb - Color - A60
€23.99
Motion SensorsSonoffSNZB-03 ZigBee Motion Sensor
5% OFF$18.99$18.04
Motion SensorsSonoffSNZB-03P ZigBee Motion Sensor
$16.50
PlugsSonoffS31 WiFi Smart Plug
$10.90
PlugsSonoffWiFi Smart Plug S40 Lite
$11.99
PlugsSonoffWiFi Smart Plug S40
43% OFF$18.99$10.90
PlugsSonoffWiFi Smart Plug S60
€13.07
PlugsSonoffZigbee Smart Plug S40 Lite
$12.99
Presence SensorsSonoffZigbee Human Presence Sensor
$26.99
Radiator ValvesSonoffZigbee Thermostatic Radiator Valve
$39.99
RelaysSonoffMINI Dry Wi-Fi Smart Switch
$14.90
RelaysSonoffMINI Duo 2
18% OFF$21.90$17.90
RelaysSonoffMINI Duo-L
$21.90
RelaysSonoffZBMINI-L2 Extreme Zigbee Smart Switch
$17.99
RelaysSonoffZBMINI ZigBee Smart Switch
$17.99
RelaysSonoffZBMINIR2 Extreme Zigbee Smart Switch
11% OFF€17.90€15.90
Temperature & Humidity SensorsSonoffSNZB-02 Temperature & Humidity Sensor
$16.99
Temperature & Humidity SensorsSonoffSNZB-02P Temperature & Humidity Sensor
$16.90
Temperature & Humidity SensorsSonoffSNZB-02WD
$19.90
Temperature & Humidity SensorsSonoffLCD Smart Temperature Humidity Sensor
$15.90
Wall OutletsSonoffWi-Fi Smart In-Wall Outlet
$13.90
Wall SwitchesSonoffSmart Wall Switch M5 (US) - Double
$18.90
Wall SwitchesSonoffSmart Wall Switch M5 (EU) - Double
$17.86
Wall SwitchesSonoffSmart Wall Switch M5 (EU) - Single
$16.49
Wall SwitchesSonoffSmart Wall Switch M5 (EU) - Triple
$19.24
Wall SwitchesSonoffSmart Wall Switch M5 (US) - Single
$16.95
Wall SwitchesSonoffSmart Wall Switch M5 (US) - Triple
$19.59
Wall SwitchesSonoffSmart Wall Switch ZBM5 (US) - Double
$31.99
Wall SwitchesSonoffSmart Wall Switch ZBM5 (US) - Single
$29.99
Wall SwitchesSonoffSmart Wall Switch ZBM5 (US) - Triple
$33.99
Water Leak SensorsSonoffZigbee Water Leak Sensor
$14.99
Water ValvesSonoffZigbee Smart Water Valve
17% OFF$35.90$29.90