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Interlogix 721U

Photoelectric Smoke detector head only, Two-wire, Output for remote LED

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Condition: New
Brand: Interlogix
Status: Discontinued
SKU: 99321
Manufacturer Part #: 721U
Replacement: EC2-OS

Description

The ESL/Interlogix 700 Series conventional photoelectric smoke detector is an interchangeable head and base detector with a light-scattering optical sensor that provides outstanding stability and excellent response to a wide range of fires. A pulsed infrared LED light source and a high-speed photodiode sensing element are housed in an omnidirectional sensing chamber protected by an insect screen.

Documents

Description

The ESL/Interlogix 700 Series conventional photoelectric smoke detector is an interchangeable head and base detector with a light-scattering optical sensor that provides outstanding stability and excellent response to a wide range of fires. A pulsed infrared LED light source and a high-speed photodiode sensing element are housed in an omnidirectional sensing chamber protected by an insect screen.

Additional information

Weight 2 lbs
Brand

Production Status

Discontinued

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Attributes

Weight 2 lbs
Brand

Production Status

Discontinued

Product Features

  • Two-Wire and Four-Wire Conventional Photoelectric Smoke and Heat Detectors
  • Advanced alarm verification feature reduces chance of nuisance alarms
  • Automatic drift compensation
  • Head and terminal base design (base sold separately)
  • Low-profile design blends into the ceiling
  • Self-diagnostic capability continually monitors operation
  • Meets NFPA 72 sensitivity test requirements
  • Field-replaceable optical chamber
  • Extensive two-wire compatibility listings
  • Remote LED indicator available for 721U, 721UT and 741UT detectors
  • Compatible with most Kidde, Fenwal and Chemetron Conventional Control Panels (See compatibility chart in Datasheet No. K-70-100)
  • FM Approved
  • UL Listed
  • CSFM Approved

What's Included

Shipping Details

Lead times are based on details provided by our suppliers. This is the best information we have currently. Product availability and pricing may change depending on market conditions. All orders are subject to processing time at our main shipment hub. Additionally, orders cannot be expedited unless they are currently in stock.

Return Details

This item must be returned within 45 days of the date it was purchased, shipped, delivered, or made ready for pickup. Refunds and returns must be sent via email to [email protected]. Please outline the items being returned, the reason for the return, along with any pictures of additional information about the product. See the return policy for complete information.

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Pricing & Availability Details

Lead times are based on details provided by our suppliers. This is the best information we have currently. Product availability and pricing may change depending on market conditions. All orders are subject to processing time at our main shipment hub. Additionally, orders cannot be expedited unless they are currently in stock.

Payment Details

We accept payments by Credit card, PayPal, Wire Transfer, and mail in checks. All orders are subject to processing time at our main shipment hub.  After placing your order, you will be sent your shipment tracking number after the mandatory processing has been completed.

Return & Cancellation Details

This item must be returned within 45 days of the date it was purchased, shipped, delivered, or made ready for pickup. Refunds and returns must be sent via email to [email protected]. Please outline the items being returned, the reason for the return, along with any pictures of additional information about the product. See the return policy for complete information.