System Sensor 4WT-B 4-Wire Smoke/Heat Detector

The System Sensor 4WT-B is a conventional four-wire i3 photoelectric smoke detector with an integrated 135F fixed-temperature heat sensor. It is intended for listed, compatible alarm-control applications.

Key features

• Photoelectric smoke detection
• 135F fixed-temperature heat sensor
• Four-wire, 12/24V non-polarized operation
• Built-in alarm relay contacts
• Removable detector head and included mounting base
• Visual status and maintenance indication

System requirements

Four-wire detector circuits require compatible resettable power, alarm wiring and listed end-of-line power supervision. The detector’s heat element does not eliminate the need for a properly designed heat-detection layout. Confirm panel compatibility, circuit loading, spacing, location, environmental limits and local code before installation. Contact Avenger Security to confirm availability.

Professional fire and life-safety support in Texas

Detector selection must match the listed control panel, initiating circuit, interface module, wiring method, power supply and local code requirements. Avenger Security provides licensed system design, installation, testing and service throughout Austin, Central Texas and statewide. New clients considering new service can request a no-cost onsite visit and up to one hour of initial consultation. Existing troubleshooting, diagnostics and repair are billable services.