Israel’s national water company Mekorot is implementing remote water monitoring kits from Israeli startup Ayyeka. The kits work with all types of sensor to measure the level of chlorine and turbidity (murkiness). Mekorot plans to roll out the kits throughout Israel.
http://israelnewtech.com/2015/07/ayyeka-makes-water-monitoring-simple-and-secure/
http://ayyeka.com/kits/water-quality/chlorine-monitoring-kit/