Siemens OP921 Photoelectric Smoke Detector

Product Id : 158482

2,500.00

Siemens OP921 Photoelectric Smoke Detector uses microcontroller circuitry and surface-mounted technology for maximum reliability. This Siemens Smoke Detector incorporates an optical sensor using a light-scattering detection principle. The device uses advanced software algorithms to analyze the signals that provide highly stable and accurate smoke detection. These detectors fit into one ceiling/wall footprint and only occupy (1) address on the signal line circuit.  This Smoke Detector is a plug-in, two-wire, addressable photoelectric smoke detector whose value is increased with the built-in ISOtechnology feature. This Photoelectric Smoke detector uses a dust-resistant photoelectric smoke chamber and microprocessor-based electronics with a low-profile plastic housing. Every OP921 smoke detector is shipped with a protective dust cover.
Applications: Home, Office, Malls, Hotel Lobby, Air Ducts, Indoor Stadiums, Hospitals, Clean rooms, etc.

  Usually ships in 2 - 4 weeksUsually ships in 2 - 4 weeks, However please contact store for precise delivery schedule. Backorder also allowed

50 in stock



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Country : United States

Product Description

Siemens OP921 Photoelectric Smoke Detector utilizes the microcontroller circuitry and surface-mount technology for maximum reliability. This Siemens OP921 Smoke Detector incorporates an optical sensor using a light-scattering detection principle. This Siemens Smoke Detector utilizes advanced software algorithms to analyze the signals providing highly stable and accurate smoke detection. Siemens OP921 has built-in ISOtechnology™ also has Optional True Class-X SLC operation significantly improving system reliability and circuit integrity while providing advanced addressable fault finding. Each detector fits into one wall-or-ceiling footprint, and only occupies one address on the signal-line circuit. This Smoke Detector is a plug-in, two-wire, addressable photoelectric smoke detector whose value is increased with the built-in ISOtechnology feature. This OP921 Photoelectric Smoke Detector is Listed  Under writers’ Laboratories  [UL268A Listed for direct in-air duct usage]. This Siemens Smoke detector utilizes a dust-resistant photoelectric smoke chamber and microprocessor-based electronics with a low-profile plastic housing. Every OP921 fire detector is shipped with a protective dust cover.
Features of Siemens OP921 Photoelectric Smoke Detector :

  • This Smoke Detector has Built-in ISOtechnology for True-Class-X SLC performance
  • It has a Dust-resistant photoelectric chamber
  • OP921 Photoelectric Smoke Detector has Microprocessor-based electronics with a low-profile plastic housing.
  • UL 268 7th Edition Listed
  • This Siemens Smoke Detector is an addressable detector approved for operation with the Underwriters’ Laboratories-specified temperature range of 32° to 120° (0° to 49°C).
  • 252 Isolation devices per SLC
  • Each detector is Self Tested: 1. Self-monitored for sensitivity with UL Listed limits 2. complete diagnostics performed every 10 seconds.
  • Compatible with Model 8720 | DPU (device programmer / loop tester)
  • Polarity is insensitive via SureWire™ technology.
  • Functions with Model DB-11–series mounting bases
  • Tri-color detector-status light-emitting diode (LED) with 360 ° view
  • Field-selectable application-sensitivity profiles
  • Remote sensitivity measurement capability
  • Utilizes advanced, microprocessor-based signal processing
  • Extended temperature-and-humidity operating range
  • Automatic environment compensation
  • Superior electromagnetic interference (EMI) and radio-frequency interference (RFI) immunity
  • Restriction of Hazardous Substances (RoHS compliant).

Additional Information

Weight 1 kg
Manufacturer Siemens
Model No OP921
Measuring Parameters Smoke
Operating Temperatures +32°F (0°C) to 120°F (49°C)
Relative Humidity 0-95% (Non-Condensing)
Air Velocity 0 − 4,000 feet-per-minute (fpm) (0 – 20 meters-per-second)
Input Voltage 16VDC to 30VDC
Maximum Spacing 30-foot Centers (900 Square Feet), per NFPA 72
Weight 144 Grams Including Battery

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