System Sensor 2WT-B 2-Wire Smoke/Heat Detector

The System Sensor 2WT-B is a conventional two-wire i3 photoelectric smoke detector with an integrated 135°F fixed-temperature heat sensor. It is intended for alarm panels that specifically list the detector as compatible with their two-wire smoke circuit.

Key features

• Photoelectric smoke detection
• 135°F fixed-temperature heat sensor
• Two-wire, 12/24V non-polarized operation
• Removable detector head and included mounting base
• Visual status and maintenance indication
• Freeze-trouble indication at approximately 41°F

Panel compatibility is required

Two-wire smoke-detector compatibility is panel- and circuit-specific. Verify the manufacturer's compatibility identifier, maximum detector count, circuit voltage, end-of-line requirements and reset operation before installation. The integrated heat sensor does not replace a professionally designed heat-detection layout. 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.