Potter VSR-10 VSR Series Vane Type Waterflow Alarm Switch with Retard, 10" Nominal Pipe Size

Ensure dependable sprinkler system monitoring with the Potter Electric Signal VSR-10 vane type waterflow alarm switch. Built for wet sprinkler applications, the VSR-10 provides reliable flow detection at 10 GPM and is UL/CUL listed for steel pipe schedules, making it a trusted choice for commercial fire alarm and building security systems. The unit’s field-adjustable pneumatic retard (0–90 seconds) minimizes nuisance alarms while the two SPDT contacts deliver flexible, fail-safe connections to fire alarm control panels and remote monitoring or security platforms. Housed in a weather-resistant die-cast enclosure with a tamper-resistant cover, the VSR-10 offers durable protection for indoor or outdoor service and helps maintain physical security and tamper awareness. Easy-to-read terminal designations and a user-friendly retard adjustment knob simplify installation and maintenance, reducing downtime for contractors and facilities teams. Ideal as a sectional detector on large mains or a primary flow switch on standard wet systems, the Potter VSR-10 integrates smoothly into your fire protection, security, and building monitoring strategy. Specify the VSR-10 for reliable waterflow detection—contact us to add it to your next fire alarm or security project.

• Reliable wet sprinkler detection that reduces false alarms and supports continuous building fire monitoring
• Adjustable 0–90 second pneumatic retard for time-delayed activation to prevent nuisance trips
• Two SPDT (Form C) contacts for seamless integration with fire alarm control panels and security/monitoring systems
• Rugged die-cast housing with tamper-resistant cover for durable indoor/outdoor installations and enhanced physical security
• Designed for 10" nominal pipe size and usable as a sectional detector on large systems for scalable protection