I am looking if the following can be done without to much of a problem using a GSM module...
request the value of PH and CF probe to mobile phone
trigger relays and recieve message once relay has completed timed closed state
trigger inputs on event/alarm and receive messages to phone
send probe values to phone a few times a day i.e 12.00, 18.00, 00.00 etc
Is there a recognised Arduino gsm module....on another post I was reading last night the GSM module was in development but the post was about a year old
No, they aren't official Arduino products, but that isn't a problem. The third party support for the Ardiuno is one of it's biggest strengths. Sparkfun make generally well regarded hardware.