TCW122B-CM is a successor of the popular TCW121B.
There are hardware improvements for better electromagnetic compatibility and safety. The device is equipped with disconnectable terminals for easier wiring.
New software futures like XML/HTTP API commands support and HTTP/SNMP port changing are added. XML/HTTP API commands give the possibility to use the device in small and medium custom systems for environmental IP monitoring. Other functionality for monitoring and control of relative humidity and temperature, relays activation of monitored parameters (temperature, humidity, analog voltage), e-mails and SNMP traps alert are kept. More details can be found on TCW122B-CM product page.