The Point Sensor WiFi RTD Transmitter is a battery operated 2.4GHz IEE 802.11b/g radio transmitter compatible with all Point Six RJ11 Temperature probes. The sensor has an on board clock that allows it to spend most of the time in a low power quiescent state. At predetermined time intervals the clock will wake up the onboard microprocessor. User defined, programmable transmis-sion intervals allow the user to obtain data based on the application needs. Onboard calibration tables provide a linear temperature output and is combined with a CRC-16 error check and transmitted in a very short data packet that results in a very short transmitter on-time. This architecture allows the Point Sensor WiFi Transmitter to consume very low energy.
Upon power up the sensor scans all available WiFi network channels (typically 1, 6, and 11) and associates with the Access Point exhibiting the strongest signal, provided the security and encryption setting agree. This feature can also be disabled to allow the user to operate the sensor on a fixed channel.
The Point Sensor WiFi Room sensor also has onboard memory allowing it to function as a data logger. The sensor has program-mable log rates ranging from 2 to 60 minutes. The sensor can store up to 3,072 data and/or event records.
Alarm limits for temperature and time span are user selectable through an easy to use utility and can be configured wirelessly. An LED is included on the sensor to indicate the following conditions: Alarm, Alarm Acknowledgment, and Return to Normal. The Alarm Acknowledgement is indicated by a different LED flash sequence and can be reset via a return radio transmission. The Re-turn to Normal (RTN) is used to allow the user to determine the exact duration of the alarm.
This product is also available as a Single Channel
, sold separately.