W&T, 57720 Web-Thermo-Hygrometer
Like all models in the Web-IO Climate series, the Web-Thermo-Hygrometer 57720 provides everything you need for connecting a temperature and relative humidity sensor to the computer network.
Measure, log and report...
The Web-Thermo-Hygrometer is an instrument that measures temperatures and relative humidity and makes the values available in the network. The device includes an integrated data logger and numerous Web and network services for manual querying of the measurements or provides autonomous sending of messages.
In addition, the supply voltage, in accordance with IEEE 802.3af (Power-over-Ethernet) can be provided over the network cable, with both phantom power over the data pairs as well as power using the wire pairs not used for 10/100BT. Problems with receptacles, country-specific plug types, different line voltages etc. are a thing of the past. For cases in which PoE is planned but not yet fully implemented, it is also possible to provide power using an external power supply and screw terminals.
Sensor:
Temperature sensor:
Measuring range: -40°C...85°C
Relative humidity sensor:
Measuring range 0..100% RH, permissible ambient: 0..95% (non-condensing)
Connectivity:
Intuitive Web interface for simpler configuration
Monitor temperatures and trends from a browser
Alarm and reporting function:
E-mail for alarm or reporting functions
SNMP polling / alarm traps
Configure up to 12 alarm messages
Dynamic integration into other Web sites:
Direct access to current measurement values, e.g. JavaScript (AJAX).
Current industry 4.0 protocols:
REST and MQTT support
Additional software interfaces for incorporating into your systems/databases:
OPC server
Syslog
Sensobase (database integration via ODBC)
TCP and UDP sockets, client and server
FTP (data logging)
Possible applications:
Monitor temperatures in the server room, network cabinet or office
Direct display of multiple measuring points in the browser via Java applet
Logging of measurements via FTP, Excel file, email attachment and internal memory
Dewpoint measurement, climate monitoring
Green IT: Monitor efficiency of the server room climate control
Data logger:
Internal data logger
Memory size: min. 12 weeks, max. 20 years
Save frequency: 15s, 30s, 1m, 5m, 15m, 60m
Document measurement data online in the W&T Cloud and access from anywhere in the world
Internal clock
Time synchronization via time server calibration
Battery-backed device clock
Standards & more
Supply voltage via Power-over-Ethernet (PoE)
Phantom power using data pairs
Power over unused wire pairs
External power supply is an alternative
Conforms to standards both in office and industrial environments:
High noise resistance for industrial environments
Low noise emission for residential and business areas
5 year guarantee
