The Point Sensor WiFi Room Sensor is a battery operated digital temperature/humidity sensor with a microprocessor controlled IEEE 802.11b/g radio transceiver. The sensor has an on board clock that allows it to spend most of the time in a low power quiescent state. Onboard calibration tables provide a linear temperature output using a “single chip” digital temperature/humidity sensor. This information is combined with a CRC-16 error check and trans-mitted in a very short data packet that results in a very short transmitter on-time. This architecture allows the Point Sensor WiFi Room Sensor to con-sume very low energy.