1, temperature range: 46F ~118F (8C~48C) 
2, control the temperature to exact you need. 
  Hypothermia is a constant risk for the small veterinary surgical patient. Approximately 60-70% of surgery patients become hypothermic. Recent human medical studies have proven that keeping patients warm during and after surgery can markedly improve clinical outcomes. This system places a flat comfortable vinyl blanket under the patient. Warm water is circulated throughout this blanket by a special electrical pump. This pump maintains your selection of temps (46F ~ 118F) The pump is matched with the blanket size and material of your choice. This pump has a number of important features: Audible Alarm: low water year warranty open sensor and high temperature Self-sealing connectors for no water leakage Dual thermostats for safety Micro Processor Control Water reservoir *Digital LED Readout Can use tap water *Flow rate 15 gallons/hour 2 meter electrical cord, different countries different power plug.