Outer Digital Controller will be located in a wall outside the sauna at a convenient face level 2. Outer Digital Controller electronic thermostat maintains the sauna temperature extremely accurately 3. Electronic timer has no ticking sound 5. One to eight hour per-selectable time setting 6. All that the user has to do is to turn on the timer and the sauna readies it self automatically HIGH-TEMPERATURE CUT-OFF PROTECTION - OVERHEATING PROTECTION The temperature is controlled by the build-in thermostat sensor.However, if for any reason, the air temperature inside the heater rises to an abnormally high level, the overheating protection automatically cuts off the power supply. When the heater has cooled down the power can be on again by pressing the reset button. Before pressing the reset button, the possible cause of overheating should be investigated. Package Included: 1x Sauna Stove with Internal Controller or 1x Heater Sauna Stove + External Controller. This purchasing price does not included any Tariff. One to eight hour per-selectable time setting. The item "220V 39 KW Sauna Heater Sauna Stove Wet/ Dry Internal & Digital Controller" is in sale since Thursday, July 11, 2019. This item is in the category "Home & Garden\Yard, Garden & Outdoor Living\Pools & Spas\Sauna Heaters". The seller is "kkmall666" and is located in shenzhen. This item can be shipped worldwide.