Drinking water – a valuable resource that must be protected

In today's world, where vandalism, theft, and sabotage in drinking water supplies are increasingly common, we offer excellent protection against any tampering with the well cover:

• Protection and damage prevention at the same time
• Using motion, acceleration, and temperature sensors
• Control and alerts via your smartphone with a free app
• Reliably alerts for up to 4 years without battery change
• Includes mounting bracket; easy to assemble without tools.
• Security around the clock and from anywhere

SWISS-made TELL outdoor sensor

TELL is the powerful outdoor sensor against water theft and other forms of theft. Weatherproof and easy to install, TELL reliably alerts you for up to 4 years without a battery change – anytime, anywhere.

Thanks to its highly sensitive motion, acceleration, and temperature sensors, TELL detects tampering with hydrants, valves, surface covers, road grates, and access points of all kinds (well chambers, yards, shafts, etc.). The data is transmitted in real time as push notifications, effectively preventing damage.