Retired Categories
Current Products
COM320 Voice Phone Modem
The COM320 is a voice-synthesizer modem that adds speech capability to a CR800, CR850, CR1000, or CR3000 datalogger. This capability allows the user to call...
COM220 Phone Modem
The COM220 phone modem enables communications between a computer and a Campbell Scientific datalogger over a public switched telephone network. A Hayes-compatible modem is required...
About Land-line Telephone
Telephone communication links require a CSI field modem at the datalogger site and a Hayes-compatible modem at the calling end. Surge protection is strongly recommended. Remote RF or multidrop networks are also accessible by telephone.



