The TR-72W dual channel temperature and RH (humidity) data logger allows for hardwared (LAN via RJ45 connector) or wireless temperature data collection via an optional Wireless LAN card.  Please order the optional LAN card with your logger if you desire wireless connections.  Send e-mail warnings to up to 5 addresses for over/under temperature conditions.  View historical data via web browser.  Includes two sensors and software. 

Specifications

Measurement Channel:  
        Temperature
            External Sensor:  0 to 50°C
            Optional Sensor:  -40 to 110°C
            Measurement Accuracy:  Average ±0.3°C(-20 to 80°C)  Average ±0.5°C(-40 to-20°C / 80 to 110°C)
            Measurement Resolution Display:  Attached Sensors
        Humidity
            External Sensor:  10 to 95%RH
            Measurement Accuracy:  ±5%RH (At 25°C 50%RH)
            Measurement Resolution Display:  1%RH
            Attached Sensors:  TR-3110 : Temp / Humidity Sensor x 1
Recording Interval:  1,2,5,10,15,20,30Seconds,1,2,5,10,15,20,30,60Minutes / Total of 15 choices
Recording Capacity:  8,000 Readings x 2 Channels
Recording Method:  Endless (Overwrite from the oldest data when recording capacity is full)  One time Method (Stop recording when recording capacity is full)
LCD Display:  Measurements (Ch1 only, Ch2 only, alternating display), Recording Status, Battery Life Warning, Over-Measurement Range, Amount of Recorded Data, Unit of Measurement
Power Source:  Specific AC adaptor (AD-0607 or AD-0605)
Data Back-up:  Saved for about 3 months with 1 lithium battery (CR-2032)
Interface:  Wired LAN:10 / 100 Base - TX RJ45 connector  Wireless LAN:IEEE802.11b CF type Wireless LAN Card
Dimensions:  H55mm x W78mm x D39mm
Weight:  About 101g ( Including one battery )
Browser Functions:  View Temperature and Humidity Data in Graph Form , Start Recording,Download Data , Monitor Current Readings , Check Back-up Battery
Warning Mail Function:  E-mail:Register up to 5 addresses to receive mail
Power Consumption:  About 290mA (when using wired LAN)
Security:  Access Controlled IP Address , ID Password Authentication
Working Environment for Main Unit:  Temperature : 0 to 50°C Humidity : 20 to 80%RH (without condensation)
Compatible OS:  Windows 2000 / XP / Vista