Aquastop SHT 226 Water Detector

Aquastop SHT 226 – Shuts Off and Warns Before Water Arrives

A defective drain hose or a blocked pump – and the laundry room is flooded. The Aquastop SHT 226 from Elektrotechnik Schabus stops it immediately: As soon as the mini float switch detects 4 cm of liquid, the device cuts the power (up to 3500 VA) and triggers a loud alarm plus a red flashing LED. Washing machine, dishwasher, or pump turn off – before a single drop leaves the room.

Simultaneously, a powerless-closed solenoid valve can be controlled (installation by a professional). 2.5 m LIYY cable (extendable up to 50 m), works also with heating oil, diesel, lubricants. The only Aquastop that doesn’t annoy at every drop, yet reacts uncompromisingly in severe cases.

The technology is clever and practical: Mini float switch triggers at 4 cm level – perfect for lifting stations, tanks, and collection points. No false shutdowns due to splashing or condensation like droplet sensors. Switching power 3500 VA – sufficient for all household appliances and many pumps.

Acoustic alarm plus visual indication directly on the intermediate plug. Automatic reset after drying possible. LIYY cable flame retardant, oil resistant, temporarily water resistant. Optional mounting bracket (Art.-No. 300787) for fixed attachment. Made in Germany – robust, durable, proven millions of times.

The SHT 226 is more than a water detector – it’s your mechanical bodyguard. Landlords, installers and homeowners love it because it reacts exactly when it really matters – and not at every little splash. Plugged in between socket and appliance, it works maintenance-free for years and can save tens of thousands of euros in damage costs. The Aquastop that finally does what its name promises.

Aquastop SHT 226 at a glance:

• Shut off at 4 cm: Reacts only at real water level – no false alarms.
• 3500 VA switching capacity: For washing machine, dishwasher, pumps.
• Loud alarm + flashing LED: Unmissable audibly and visually.
• Mini float switch: Also for heating oil, diesel, lubricants.
• 2.5 m cable: Extendable up to 50 m (LIYY 2×0.14 mm²).
• Solenoid valve control: Optional watertight shut off.
• Automatic reset: Ready again after drying.
• Made in Germany: Highest quality and reliability from Schabus.

Typical use cases – where the SHT 226 prevents costly damage

• Lifting stations: Washing machine/dishwasher in basement – pump defect? Device off!
• Heating oil tanks & lubricants: Overflow or leakage immediately detected.
• Rain water systems & cisterns: Pump off at overflow.
• Basements & technical rooms: Backflow, pipe burst, condensation.
• Commerce & trade: Machines with cooling fluid or oil.
• Holiday homes: Protection even when nobody is around.

Scope of delivery

• Aquastop SHT 226 with mini float switch
• Mounting material (1 screw, 1 plug)
• User manual

Safety instructions

• Before installing or commissioning the device, read the user manual carefully.
• Packaging material is not a toy. Keep out of the reach of children.
• Do not open the device; it contains no user-serviceable parts.