SpaSitter is open source spa or pool monitor designed by Brian Huebner. It remotely monitors pH, ORP (Oxidation Reduction Potential) and temperature of Spa or Pool. It can help you monitor water quality in your spa 24/7 and alerting you when chemicals need. With Cosm’s easy graphing API and triggers, user can always have easy access to water conditions on smart phone or the web. You can set up email alerts to notify you when water conditions start to degrade.
Main hardware of the project are Nanode, an open source Arduino-like board that has in-built web connectivity that connects to a range of wireless, wired and Ethernet interfaces to develop web based sensor and control systems. SpaSitter is equipped DS18B20 to monitor water temperature and Phidget 1130 pH/ORP adapter board to monitoring water PH and ORP. For safety, industrial grade probe for PH and ORP probe are required.