vine smart wifi 7day/8period programmable thermostat model tj-225, compatible with alexa and google assistant vine <p>wi-fi smart thermostat model: tj-225</p><p>weight:nt:140g wt: 280g</p><p>dimension:123 x 85 x 26 mm package: 203 x 123 x 38 mm</p><p>color: white</p><p>material: abs+pc</p><p>screen: 2.8” tft- lcd 320x280 pixels</p><p>nightlight:programmable white led (3200k~3500k)</p><p>power source: 24v-ac (20v~30v ac), 5v-dc</p><p>temperaturesetting range: 40°~99°f (5°~37°c)</p><p>working temp.: 32°~110°f (0°~ 43°c)</p><p>working humidity: <90% non-condensing max.</p><p>wi-fi standard: ieee 802.11b/g/n (2.4g)</p><p>wi-fi connected range: <50 meters in open area sensor: temperature, humidity </p></br></br></br><p>productfeatures:</p><p>2-h, 2-c, heat pump, emerg. heating</p><p>7 day / 8 period programming</p><p>temperature range setting</p><p>temporary/permanent hold</p><p>wi-fi auto reconnect wi-fi</p></br></br></br><p>app/cloud features:</p><p> one account multiple device access</p><p> compatible with amazon alexa/ google assistance</p><p> different setting for each day,8 periods per day</p><p> environment friendly no battery </p><p> required c-wire</p></br><p>*** when you get the device,please check the setup video,then you will know how to connect the phone and thermostat:https://www.youtube.com/watch?v=pptl2sefefi&t=34s; ***</p>