Measured by Soft-I/O device
Water meter is monitored by the soft-I/O device using a CNY70 reflective IR sensor
Bars indicate amount of water from one take.
Total amount is shown as a line (liters).
Should you see a flat line, I probably knocked the sensor off the meter.
All is served by a Mac OS 10.4 iBook G4.

This diagram shows how XTension controls relative humidity using a Oregon Scientific THGR122NX humidity/temperature sensor, an RFXCom transmitter/receiver and an ultrasound evaporator. This humidifier is fed from a reverse osmosis unit. Using descaled water prevents a grey 'frosting' on furniture and prolongs the life of the humidifier. Tea tastes better too.