The 1-101110-01 is a humidity and temperature sensor manufactured by Sensirion. It is a digital sensor that is capable of measuring relative humidity (RH) and temperature with accuracy to +/-2%. It also has an audible alarm that can be used to alert users of events that exceed programmed thresholds. The communication interface for the sensor is an I2C connection, and it has EMI/RFI protection, low power consumption, and a low profile design that can fit in constrained spaces. The device meets UL, CE, and ROHS standards, and can be used in a variety of environmental applications.