System Sensor 4WTA-B Four-Wire Smoke/Heat Detector with Sounder — Discontinued

System Sensor 4WTA-B Four-Wire Smoke/Heat Detector

Discontinued product: The System Sensor 4WTA-B i3 detector is no longer a current manufacturer product. This page is retained as a legacy reference for existing systems. Contact Avenger Security before ordering or substituting equipment.

The 4WTA-B combines a conventional four-wire photoelectric smoke detector, a 135°F fixed-temperature heat sensor and an integral 85 dB sounder. It operates on compatible 12- or 24-volt non-polarized circuits.

Legacy specifications

• Four-wire photoelectric smoke detection
• 135°F fixed-temperature heat sensor
• Integral sounder
• Nominal 12/24 VDC operation
• Replaceable detector head with included base

Replacement warning: A replacement must be evaluated for panel compatibility, circuit supervision, power, sounder operation, listing and code requirements. Do not substitute another detector solely because its wiring appears similar.

Licensed fire-alarm support in Texas

Avenger Security provides licensed fire-alarm 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.