The RADAR ST‑70AB Water Level Control Switch is a dependable automatic pump controller designed to keep overhead and underground tanks at the right level—no manual switching needed. Using stainless probe electrodes, it senses High/Low water levels and safely starts or stops your pump based on setpoints. Ideal for homes, apartments, RO plants, and small commercial systems in Pakistan where reliable water management is essential.
Powered by 220–240 VAC (50/60 Hz), ST‑70AB features an internal control relay to drive your pump contactor, plus status LEDs for quick diagnostics. Adjustable sensitivity helps it work with different water qualities, reducing false triggers. Typical delay logic prevents rapid cycling when water sloshes or the supply fluctuates. Screw terminals and a compact housing make panel or wall installation simple for electricians and maintenance teams.
Features:
Automatic tank filling/draining with Hi/Lo probe control
220–240 VAC supply; relay output for pump/contactor
Adjustable sensitivity for varying water quality
Anti‑chatter delay and clear status LEDs
Compact, easy wiring; wall/panel mount
Specifications:
Supply: 220–240 VAC, 50/60 Hz
Sensors: 2–3 stainless probes (COM/Low/High)
Output: Relay 1 C/O (e.g., 5A @ 250 VAC), use contactor for large pumps
Adjustments: Sensitivity and delay (model dependent)
Enclosure/Terminals: Compact module, screw terminals
Uses:
Overhead/underground water tank automation
Borewell/booster pump control
RO and storage tanks level management
Apartment and commercial water systems
Sump protection and dry‑run prevention
Packages Include:
1 x RADAR Water Liquid Level Control Switch ST 70AB (China)