Descriptions: 1. The optional clock (built-in rechargeable battery) can be used to control the temperature in certain time periods (e.g. one temperature range during the day and one temperature range at night). The temperature can be controlled for a maximum of 3 time periods. 2. Added buzzer with button sound and high and low-temperature alarm function. 3. Built-in set of synchronization functions (e.g. on at 8 o'clock, off at 10 o'clock, cycle every day) The multifunctional thermostat timer significantly expands the possibilities of controlling climate control electrical equipment. With its help, you can easily control electric heaters, refrigeration and lighting equipment, irrigation systems, and pumping equipment. The thermoregulator timer does not require stationary installation, for its operation is sufficient for an ordinary 220 V socket. Functions : 1. Control by preset temperature values (heating and cooling from -40 to 120 degrees C) 2. Power on after a preset time (up to 99 hours and 99 minutes) 3. Power off after a preset time 4. Cyclic timer operation 5. Screen illumination The thermostat can combine all modes of operation simultaneously, which allows you to customize it for virtually any task of using electrical equipment. Specifications : Mains voltage: 230 V Maximum load: 16 A (3680 W) Temperature control range: -40 +120 C Maximum on/off time in timer mode: up to 99 hours 59 minutes Temperature calibration: -10 to +10 C Package Includes: 1*Thermostat