Kollercraft Pet Products CKLPBPC75 Kol Double Diner Mouse Translucent Pet Medicine Controls temperature by turning on/off heating devices in HEAT mode or by turning on/off cooling devices (e.g. fan) in -Inch COOL-Inch mode Temperature control range is 50F to 122F (10C to 50C) Humidity control range: 15% to 95% RH (Relative Humidity)