900 Industries, Inc.
16 Deborah Drive Sutton, Ma 01590
16 Deborah Drive Sutton, Ma 01590
Paul McNamara
Owner/President/Treasurer/National Sales Manager
Owner/President/Treasurer/National Sales Manager
Toll free - 1-800-225-7288
Phone - 508-865-9600
Fax - 508-865-7336
Phone - 508-865-9600
Fax - 508-865-7336
Pressure Switches
System Sensor's line of pressure switches includes the EPS10 Series for use in wet, dry, deluge, and pre-action automatic sprinkler systems to indicate a discharge from a sprinkler. The EPS40 and EPS120 Series supervisory pressure switches are intended for dry pipe systems or pressure tanks and water supplies of automatic water control valves. These models offer a choice of initiating low or high/low pressure monitoring alarms, in a variety of pressure ranges. And should your system involve a potentially hazardous location, System Sensor offers a complete line of explosion-proof alarm and supervisory pressure switches.
Greta Heath
Operations Manager
Operations Manager
Safe Signal
Tammy Itse
Customer Service Representive
Customer Service Representive
We accept
Holiday Schedule 2014
Waterflow Detectors
The WFDN Series waterflow detectors provide a mechanical time delay that is adjusted via an adjustment wheel. This retard mechanism is field replaceable, as is the terminal block. 
Model: WFDTN
The WFDTN is a T-Tap waterflow detector for use with a 1" NPT connection.
The WFDTN is a T-Tap waterflow detector for use with a 1" NPT connection.
Model: WFDNF
System Sensor WFDNFS & WFDNFT waterflow detectors are designed for primary signaling in systems that use CPVC fittings
System Sensor WFDNFS & WFDNFT waterflow detectors are designed for primary signaling in systems that use CPVC fittings
Supervisory Switches
The nerve centers of a fire sprinkler system are the switches and valves that control the entire system. System Sensor offers a variety of choices for supervising system control valves. Regardless of valve type (outside screw valve monitoring and yoke, post indicator, butterfly, or non-rising stem gate valve), our OSY2, PIBV2, and PSP1 models provide you with the peace of mind that comes from knowing that your system's control valves are being monitored.
Model: OSY2
The OSY2 is used to monitor the open position of an outside screw and yoke (OS&Y) type gate valve.
The OSY2 is used to monitor the open position of an outside screw and yoke (OS&Y) type gate valve.
Model: PIBV2
The PIBV2 monitors the open position of post indicator and butterfly control valves
The PIBV2 monitors the open position of post indicator and butterfly control valves
Model: PSP1
The PSP1 plug-in switch is designed for applications where no other type of listed valve supervisory switch can be used.
The PSP1 plug-in switch is designed for applications where no other type of listed valve supervisory switch can be used.
1-800-225-7288