Improve the performance of the ultrasound gel, increase the image quality or signal quality; Remove the uncomfortable cold feeling of the patients, help the patients more relaxation to the diagnosis Features: Adjustable temperature control range 34~40°C Programmable timer to switch on and switch off 360 degree surround heater unit Ergonomic 2 bottles design Built-in durable wall mountable construction Specifications: Power Supply: AC100~240V, 50/60Hz, 30VA, DC12V, 2A Operating Ambient Temperature: 0~40°C Operating Relative Humidity: 30~90% Temperature Control Range:34~40°C Temperature Control Accuracy: ±1°C?After Heat Balance? Auto Switch On Timer: 00:00~23:59 Auto Switch Off Timer: 00:00~23:59 Size:190mm*170mm*110mm Weight: 650g Product Life:5 years