SHT 5002 DIN Rail Water Detector

SHT 5002 Level Controller – The professional DIN rail solution with 2-point control & overflow alarm

Finally, a truly intelligent solution for the fuse box: the SHT 5002 by Elektrotechnik Schabus combines a 2-point level controller and overflow alarm in one compact DIN rail device.

Two completely separate signal lines, two relays, and one clever wire bridge – together they provide precise control for filling or draining cisterns, pools, garden ponds, livestock troughs, or oil tanks. At the same time, a separate overflow alarm with memory function ensures that nothing overflows – even if the pump fails.

Perfect for those who value professional, maintenance-free, and expandable technology.

The engineering is well thought out in every detail: a potential-free 5 A AC relay controls the pump, while a second relay signals overflow or leakage. A simple wire bridge selects “fill” or “drain.” The green LED indicates pump operation, and the red LED flashes in alarm mode and remains lit after acknowledgment – nothing is forgotten.

In combination with the robust mini float switches from Schabus, the system also works with heating oil, diesel, distilled water, or other non-conductive liquids. Made in Germany – proven millions of times, now even smarter.

The SHT 5002 sets a new standard for those who accept no compromises. Homeowners with rainwater systems, garden and pond owners, farmers, and commercial users rely on it because it simply works – reliably, maintenance-free, and for years. Once installed, it automatically regulates and monitors everything – giving you complete peace of mind.

The SHT 5002 at a glance:

• 2-point level control: Precise filling or draining via wire bridge.
• Separate overflow alarm: Independent relay + memory function.
• Potential-free relays: 5 A switching capacity – for pump, valve, or alarm system.
• For all liquids: With mini float switches also suitable for oil, diesel, distilled water.
• DIN rail mounting: Fits all standard 35 mm distribution panels.
• Clear LEDs: Green = pump, Red = alarm (remains on after reset).
• Expandable: Two independent applications possible simultaneously.
• Made in Germany: Highest quality and durability from Schabus.

Typical applications – where the SHT 5002 proves itself daily

• Rainwater harvesting & cisterns: Automatic filling or draining.
• Garden pond & pool: Constant water levels with no effort.
• Agriculture: Livestock troughs, slurry containers, irrigation systems.
• Heating oil tank & drip tray: Overfill and leakage protection.
• Industry & commerce: Process tanks, coolant reservoirs.
• Private households: Combine cistern control with washing machine overflow detection.

Scope of delivery

• SHT 5002 water detector
• Operating manual
• Mounting materials

Safety instructions

• Before installation or operation, read the user manual carefully.
• Installation must be carried out by a qualified electrician.
• Packaging material is not a toy. Keep it away from children.

Intended use

• The SHT 5002 water detector is a 2-point level control device. Two water sensors or float switches define an upper and lower level for automatic filling or draining of a tank.
• An additional sensor input is available for a separate water alarm with a potential-free relay contact, allowing independent level monitoring in addition to level control.