The Thermostat Click Board™ is based on the Maxim MAX7502 IC digital temperature sensor. It also provides an over-temperature alarm/interrupt/shutdown output and an SN74LVC1G126 single bus buffer from Texas Instruments.
MAX7502 IC can measure temperatures from -25°C to +100°C, within the accuracy of ±1.5°C.
The G6D PCB power relay can control up to 5A, 250V AC/30V DC loads.