The Crab is a compact low-level floor probe designed to automate puddle and residue pumps while preserving true low-level detection. The unit rests on a flat surface and detects water by conductivity, triggering pump start and stop with programmable delays to avoid short-cycling and to ensure reliable priming and drainage.

Key features

• Adjustable start/stop delay
• Low-level sensing suitable for puddle/sump pumps and residue removal — detects very low water depths to protect equipment and floors.
• IP68-rated waterproof electronics and polypropylene construction for corrosion resistance and durability in wet environments.
• Multiple supply and cable variants available; your listed variant includes a 30cm cable with cable gland for secure entry and strain relief (compact installation). (SKU 020-010).

Applications

Perfect for sump and puddle pumps, basement and garage drainage, stormwater capture, irrigation tanks, and light industrial wastewater where reliable low-level control, anti-cycling delay and compact floor-mounted sensors are needed. The Crab supports both emptying and filling configurations (SPST NO/NC variants) and is commonly used where a short programmable delay reduces false starts and improves pump life.