ETL 011 range of electronic thermostats register the air temperature and can switch signal currents using an internal relay. The ETL 011 can control signal processing devices directly. If the application system requires you to control heating and cooling equipment such as filter fans a switch module is required.The status of the contacts 1-2 is shown via the LED integrated into the adjustment knob.
large setting range. Small hysteresis. Optical operating display. change-over contact. signal application.