Pool Accessories and Supplies / Pool Essentials

The Model SR-500 is a Safety Vacuum Release System (SVRS) which works by monitoring the vacuum on the suction side of the pool or spa pump. When a blockage occurs in the main drain or skimmer a sudden rise in vacuum will cause the SR-500 to shut down pump operation and activate an audible alarm (optional). The pump will remain off with the alarm sounding until manually reset.

The Stingl SR-500 monitors vacuum 128 times per second and provides rapid response and accurate readings. In addition to being an effective SVRS system the SR-500 also features a programmable 24 hour timer.

Stingl SR-500 Features:

Pool or Spa SVRS System

Can act as a pool and spa controller with fully programmable 24 hour timer, or as stand alone SVRS working in conjunction with existing pool and spa controller

Integrates with existing timer box for easy retrofit

Low vacuum sensing prevents cavitations or running the pump dry, eliminating costly equipment failure

30 minute maintenance override for pool or spa service

Accessible extra dry contact to enable auxiliary equipment can be added

Power back-up insures settings and reading will be saved (30 minute rapid recharge)

Display error readout prevents guessing during troubleshooting

Works on all sizes of pool and spa pumps

Easy and trouble free installation without any pipes to cut or glue

Turns off pump in milliseconds upon detecting sudden vacuum change

Multiple audible alarm capabilities (optional) which allows for quicker alert to harmful situations

Newest state-of-art NEC microprocessor technology-- guaranteed reliability and performance

Vacuum monitored 128 times per second for rapid response and accurate readings

Power monitored 50/60 times per second to insure continuous power detection

Provides a layer of protection, reducing entrapment risk Complies with ASME/ANSI 112.19.17 as required by the International Building Codes (IBC) and the International Residential Codes (IRC)

Meets all current codes and standards for SVRSs on new and existing pools and spas