Eliminate Float Switch Hassles: Meet the WLC-5000 from Waterline Controls

When it comes to water level management in critical systems, failure is not an option. That’s why more engineers and contractors are turning to Waterline Controls’ WLC-5000—a simplex fill control solution with high and low alarm capability, designed to replace float switches and reduce service issues for good.

We know your projects rely on dependable, intuitive technology that works consistently, even in demanding environments. The WLC-5000 delivers on all fronts with a rugged, sensor-based design that offers advanced reliability, seamless integration, and virtually no maintenance.

A Smarter, Safer Alternative to Traditional Float Switches

Float switches have long been the industry standard, but they’re prone to failure, fouling, and inaccurate readings—especially in dirty or fluctuating water conditions. The WLC-5000 replaces float, pressure, ultrasonic, capacitive, and conductive sensors with a more modern solution that is:

• Intrinsically safe – No high voltage in the water

• Non-fouling and non-plating – Performs reliably regardless of water quality

• Zero recalibration required – Set it and forget it

• Built to last – Less than 1% field failure rate

  
  

Key Benefits for Your Project

Whether you're specifying controls for a cooling tower, tank, or basin, the WLC-5000 simplifies both installation and long-term operation.

• LED Status Indicators: Quickly confirm power, alarm, and fill states at a glance

• 5-Year Limited Warranty: Confidence backed by proven field performance

• Flexible Mounting: Easily install in remote or hard-to-reach locations

• Dry Contact Outputs: Seamless integration with BAS, BMS, or fire alarm panels

• Modular Design: Easily extend probe lengths or adjust for unique site conditions

Also, the control panel comes housed in a NEMA 4X enclosure for durability and includes power relays for 110VAC devices such as valves and pumps.

Designed with Installers and Operators in Mind

Waterline’s color-coded sensor rods and wiring simplify installation, and the system comes pre-configured with high, low, and fill level sensors:

• Green Rod: High Alarm

• White & Red Rods: Fill ON/OFF differential logic

• Brown Rod: Low Alarm

• Black Rod: Reference

You also get built-in test push buttons for easy relay diagnostics, making startup and commissioning fast and frustration-free.

Keep Maintenance Minimal

With no moving parts aside from the replaceable relays, and no recalibration required over time, the WLC-5000 dramatically reduces the need for service. Plus, it operates independently of water chemistry—no special treatment or sensor cleaning required.

Even better? The WLC-5000 is designed to be immune to EMF interference when properly installed and includes detailed guidelines to ensure a clean, interference-free installation—especially around VFDs and high-voltage wiring.

Built to Support Long-Term Performance

From the rugged stainless steel rods to the intuitive LED diagnostics and fault alerts, every element of the WLC-5000 is engineered with longevity and reliability in mind. The optional sensor rod extension kits make it easy to adapt the system for deeper tanks or unusual layouts, and the modular control panel design keeps expansion and upgrades simple.

Ready to spec the WLC-5000? Let us know how we can help with layout recommendations, submittal packages, or integration guidance.