PCT2075 Temperature Sensor Adafruit PCT2075 Temperature Sensor is a code-compatible drop-in replacement for the LM75 I2C temperature sensor. This temperature sensor features an 11-bit ADC that provides precise measurements. The PCT2075 temperature sensor allows the address pins to work in three states (including high, low, and floating) and the setting of a high-temperature threshold that the sensor compares to the current temperature. The sensor then raises an alert when the current temperature exceeds the threshold. The PCT2075 temperature sensor can be placed on a breakout board with the required support circuitry and connectors for seamless operation. This sensor is RoHS2 compliant and compatible with STEMMA QT JST SH connectors.