junction box thermostat with e terminal

{"cid":"91148828","title":"24VAC LCD Air Conditioner digital heat pump thermostat Heating and Cooling Wired Room Thermostat","imgUrl":"https:\/\/img.chinax.com\/nimg\/28\/4e\/d6b2151eadf89d27fbe73a9c3005-200x200-1.jpg","attrs":{"Price":"USD $11-20\/pcs","Brand Name":"OCSTAT","Model Number":"S721","Minimum Order Quantity":"500pcs","Delivery Time":"5-30 Work Days","Certification":"CE\/RoHs","Place of Origin":"Dongguan","Payment Terms":"L\/C, D\/A, D\/P, T\/T, Western Union, MoneyGram","Supply Ability":"30000pcs per month","Packaging Details":"Customized Package","Name":"Air Conditioner Thermostat Control","Temperature Range (\u00b0F):":"41\u00b0F - 95\u00b0F","Control Temp.Range (\u00b0F):":"44\u00b0F - 90\u00b0F","Application:":"Heat Pump","Stages:":"2 Heat\/1 Cool","Dimentions":"120*106*26MM","Backlight":"Blue \/Green backlight","Display":"4 sq. inch display","Power Method:":"Battery or 24V","Programmability:":"Non-Programmable","Operating Humidity:":"90% non-condensing","Mount:":"Horizontal","User Interface:":"Push Button"}}