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Verified: January 13, 2026

System Sensor Smoke Alarm Round Hardwired Photoelectric 20JZ02

~$47.48

The System Sensor 20JZ02 is a round, hardwired photoelectric smoke alarm designed for reliable smoke detection in residential and commercial buildings.

Key Specifications

  • Compatibility: Hardwired systems
  • Voltage: 120 VAC
  • Type: Photoelectric
  • Mounting: Ceiling or wall mount
  • Sensitivity: Meets UL standards for smoke detection
  • Alarm Sound Level: 85 dB at 10 feet
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