1 shops are selling it on Ebay with coupons. Other top ingredients are Controller, type and sensor type. Also c919 110v ios wifi digital temperature is one of the best sellers in Inkbird, Vine 919 Thermostat and C in 2021.

Inkbird Wifi Controller Heat Cool timer It be compatible iPhone iPhone anywhere Control, Monitor and Appliances of Humidity Using PhonePlug and play easy Maximum output 13.5A, (110V); Multi control.
Temperature, timer plugTask scheduler. you minutes temperature.
Wi-Fi: 802.11nAble to smart by button without Wi-FiCompact to space, (L)*2.48(W)*1.34(H) inProduct Description:Input: 50/60HZMaximum Current: 13.5A MaxMaximum Power: (110V) 2.4Ghz 802.11nTemperature : ° F Temperature Resolution: Temperature ~ 70°C) (-50 Length: 6.56ftSensor Type: NTC sensor Dimension: mm 3.66 inAmbient -30~75℃ Wi-Fi controller1x Short temperature NTC temperature Inkbird 110V Wifi Digital Temperature Heat US.
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