Using IP modules (Serial Servers) Pico technology's Enviromon system can be used to monitor up to 255 remote sites on a single computer, the serial server gives each logger an IP address, each serial server is connected to the switch found in each site (switches must be connected to the same network). After that, all sites can be monitored using the Sitelog software which also enables SMS and e-mails alarm.

Reference: Monitoring temperature, humidity, water leak, fire alarm status and door status of 21 locations for the Ministry of Telecom and information technolgy.