GSM/GPRS Data logger, which can measure analogue or digital inputs, cache them in memory and upload them via the GSM/GPRS network to an internet database, send via email or SMS, etc. Email me.
The version as pictured has 6 analogue channels and 2 digital channels but other variations are possible. Remote updating of configuration is possible via SMS or internet. It is powered by 4x AA alkaline batteries which can give a battery life of up to 12 months for daily data upload. Email me