LM35DZ Temperature Sensor Schematic Diagram

Here is a circuit of temperature sensor, only designed to automatically control the temperature with high accuracy. Circuit switching miniature relay ON or OFF according to temperature detected by single-chip temperature sensor LM35DZ. Temperature is controlled by circuitry that 0-100 degrees Celsius.

LM35DZ found when the temperature of a certain level (determined by VR1), the relay is activated crossing. When the temperature drops below a set value, the energy of the relay. The sensor circuit can be activated by AC or 12V DC or battery (100 mA minimum). Here is a simple temperature sensor circuit.

Temperature Sensor Circuit