The 4WTAR-B is a 4-Wire Photoelectric smoke detector, incorporates a state-of- the-art optical sensing chamber, an advanced microprocessor and features a restorable, built-in, fixed temperature (58 °C) thermal detector. It also contains a piezoelectric horn which generates the ANSI S3.41 temporal pattern in an alarm condition and a Form C relay.

Features

• Full line of options including:
  – 85 dB sounder
  – Form C relay
  – Isolated thermal sensor
• Plug-in design – base included
• In-line terminals
• Flexible mounting options
• Stop-Drop ’N Lock™ attachment to the base
• Removable cover and chamber
• Remote maintenance signaling
• Drift compensation and smoothing algorithms
• Simplified sensitivity measurement
• Dual colour LEDs