INKBIRD Smart Thermostat Dual Relay Temperature Controller ITC-308-WIFI Supports IOS & Android for Greenhouse,Terrarium,Carboy Bullet Point - WIFI & APP : WIFI smart controller supports both IOS & Android - WIFI supports : 2.4GHz Wi-Fi router - Free APP : InkbirdSmart which is able to monitor temperature at any time. - Dual Relay Output : Dual relay output, which can connect heating and cooling device at the same time. - Alarm for Safe : High/Low temperature limit setting alarm. - Convenient Design : Plug-n-play, easy to use. Support /reading and Temperature calibration. - Long Warranty : The controller itself has 2 years warranty while the temperature sensor has 1 year warranty. - Maximum output load : 1100W(110V) /2200W(220~240V). Feature - Plug and play design, easy to use. - Support reading with Centigrade or Fahrenheit. - Input Voltage: (US Plug)120v 60Hz; (EU/UK/AU Plug) 220~240v 50Hz - Temperature calibration, Compreor delay protection for refrigeration control. - High and low temperature alarms are available. - Dual relay output, be able to connect with refrigeration and heating equipment at the same time. - Dual display window, be able to display measured temperature and set temperature at the same time. - Heating/Cooling differential function could be set separately for refrigeration and heating to protect temperature controller from violent change. - Power: Voltage: 100~230Vac50/60Hz, Current: 10A, Max Wattage: 1100W / 1200W(110Vac), 2200W(220Vac) - Type of temperature probe: R25=100K1%, R0=26.74~27.83K,B25/85=3435K1% - Temperature measurement range:-40~100/-40~212 - Temperature display accuracy: 0.1 /(=100/) - Display unit: Celsius or Fahrenheit - Ambient temperature: -20~60/-4~140 - Storage environment: temperature:0~60/32~140;humidity: 20~80%RH(Unfrozen or condensation ) - Warranty:Controller:2 years warranty Temperature Probe:1 year warranty Package Included: 1 x ITC-308-WIFI Temperature Controller 1 x Manual