Potter WLS Tank Water Level Switch

Protect your fire sprinkler supply and site operations with the Potter WLS Water Level Switch, a purpose-built tank level switch from Potter Electric Signal designed for dependable tank supervision and monitoring. The float-operated WLS provides early detection—meeting NFPA 72 guidance—by sensing a 3" (7.6 cm) rise or fall in pressure or gravity tanks, helping prevent false alarms and ensuring uninterrupted suppression readiness. Built for real-world installations, the unit ships with a 1-1/2" NPT bushing for steel tanks and offers optional adapters for 2" flanges or wooden tanks, simplifying retrofits and new installs. With NEMA 4 protection and a tamper-resistant cover, the Potter WLS withstands wet, dusty, and industrial environments while protecting internal wiring and contacts. Ideal for facility managers, fire contractors, and security integrators, the WLS integrates into monitoring and building management systems to deliver actionable level status for surveillance, alarm monitoring, and water flow controls. Backed by a 5-year warranty, it reduces lifecycle costs and maintenance headaches. Specify the Potter WLS Water Level Switch for reliable tank monitoring—contact your distributor or order now to secure your sprinkler supply.

• Ensures reliable tank-level supervision to prevent sprinkler supply failures and support NFPA 72 compliance
• Float-operated detection senses water before a 3" rise or fall for early fault notification and reduced false alarms
• Versatile mounting: 1-1/2" NPT bushing for steel tanks, optional 2" adapter or buttress thread for wooden tanks—fits existing installations
• NEMA 4 weatherproof construction protects internal components in wet or industrial environments for long-term uptime
• Tamper-resistant cover and 5-year warranty minimize maintenance, liability, and service interruptions