Call Toll Free 1-877-781-7178
or 1-732-583-7878

PayPal Logo
PayPal Acceptance Mark

Have you seen ...
Free shipping over $199
Shopping Cart:
now in your cart 0 items
Your cart is empty.
Free shipping over $199

System Sensor 4WT-B Smoke Detector w/ Thermal Sensor








4WTB Smoke Detector w/ Thermal Sensor
Replacement For System Sensor 2112/24TB, 2112/24TD, 2112/24TS, 2412THB


Detection: Photoelectric

Wiring: 4-wire

Heat Sensor: 135°F (57.2°C) fixed

Operating Voltage: 12/24 V non-polarized nominal, 8.5 min. to 35 max.

Maximum Ripple Voltage: 30% of nominal (peak to peak)

Alarm Current: 20mA max. @ 12V, 23mA @ 24V

Standby Current: 50 µA max. avg.

Alarm Contact Ratings: 0.5 A @ 30V AC/DC

Temperature Range: 32° to 100°F (0° to 37.8°C)

Humidity Range: 0% to 95% RH, noncondensing

Freeze Trouble: 41°F (5°C)

Sensitivity: 2.5%/ft. nominal

Wiring Gauge: 14-22 AWG

Dimensions: 2.0" (51mm) H x 5.3" (127mm) Dia.

Weight: 6.3 oz. (178 g)


Add to Cart:

  • Model: System Sensor 4WT-B
  • 155 Units in Stock
  • Manufactured by: System Sensor

Parse Time: 0.194 - Number of Queries: 261 - Query Time: 0.095490221405029