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Market:

Detector Style:

Technology:

Alarm Type:

Carbon Monoxide Detector?

Power:

Operating Voltage Range:

Allow up to: overrange/margin
Use the overrange/margin to restrict your search to items whose full-scale range is close to your requirements.
(Overrange/margin requires both 'From' and 'To' values to work.)

Features:

Help with Smoke Detectors specifications:

Market
           
   Your choices are...         
   Commercial       Devices are designed for commercial applications, such as in an office complex. 
   Industrial       Devices are designed for industrial applications, such as on manufacturing floors or within a manufacturing process. 
   Residential       Devices are designed for use within private residences. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Detector Style
           
   Your choices are...         
   Stand-Alone Detector       Stand-alone detectors include a smoke sensor and detector circuitry. Typically, they feature a built-in alarm; however, this is not always the case. Sometimes, instead of built-in alarm, stand-alone detectors have electrical contacts for auxiliary alarms. 
   Detection System / Component       Products consist of a smoke detector and control unit, or are smoke detectors that are designed for use in networked systems. These devices are usually programmable. 
   Smoke Detector IC       Semiconductor manufacturers produce integrated circuits (ICs) that are designed specifically for smoke-sensing applications. These devices do not contain the actual smoke sensor. Note also that the specific features of the integrated circuit may make one IC more suitable for DC, and another for AC. 
   Addressable Detector       Addressable detectors communicate within networked detection systems.  
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Technology       
   Your choices are...         
   Ionization Chamber       Ionization detectors use an ionization chamber and a source of ionizing radiation to detect smoke. These smoke detectors are commonly available because they are relatively inexpensive, and are good at detecting small amounts of smoke produced by flaming fires. Ionizing (or ion chamber) smoke detectors contain a very small amount of radioactive material, Americium-241 (Am-241). Am-241 has a half-life of 458 years and emits alpha particles. Ionizing smoke detectors are designed so that gaining access to their radioactive sections would require the complete destruction of the device. An ionization chamber is very simple, however, and consists of two plates with a voltage across them, as well as a radioactive source of ionizing radiation. The alpha particles that are generated by the small radioactive source ionize the oxygen and nitrogen atoms of the air in the chamber. The term "ionization" means that the result is a free electron (with a negative charge) and an atom missing one electron (with a positive charge). The negative electron is attracted to the plate with a positive voltage, and the positive atom is attracted to the plate with a negative voltage. The electronics in ionization chamber smoke detectors can sense the small amount of electrical current represented by these electrons and ions moving toward the plates. Smoke entering the ionization chamber disrupts this current; the smoke particles attach to the ions and neutralize them. The smoke detector then senses the drop in current between the plates and sets off the alarm. 
   Photoelectric       Photoelectric smoke detectors contain a light and a sensor that are at 90-degree angles to one another. Normally, light from a light source on the left moves straight across and misses the sensor. When smoke enters the chamber, however, smoke particles scatter the light, and some amount of light hits the sensor. The smoke sensor then triggers the alarm in the smoke detector. Photoelectric detectors are better at sensing smoky fires, such as that of a smoldering mattress. Common light technologies include LEDs (light emitting diodes) and lasers (laser diodes). Spot laser technology is more sensitive than LED technology in detecting a fire. 
   Other       Other unlisted, specialized, or proprietary sensing technologies. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Alarm Type      Smoke detectors may have audible alarms, visual alarms (LEDs) or both. They may also have alarm output to a control unit. Smoke detectors without a built in alarm come with alarm contacts for output to an external annunciator in the detector base or to a control unit. Smoke sensing ICs may come with piezoelectric horn drivers or with alarm output circuitry. The National Fire Protection Association (NFPA) establishes minimum requirements for fire alarm systems and initiating devices such as smoke detectors. Smoke detectors and fire alarm systems that support NFPA 72 must produce an audible alarm signal that is different from all other audible signals.
   Your choices are...         
   Audible Alarm       Devices have an audible alarm. 
   Visual Alarm Indicators (LEDs)       Devices may have only visual indicators such as LEDs, or visual alarms and audible alarms. 
   Control Panel       Devices communicate a signal to a control panel to trigger the alarm. 
   Other       Other unlisted, specialized, or proprietary alarm types. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Carbon Monoxide Detector       The assembly includes a carbon monoxide detector. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
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Power
           
   Your choices are...         
   AC       Devices operate on AC voltage. 
   DC       Devices operate on DV voltage. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Operating Voltage Range       The operating voltage range. 
   Search Logic:      User may specify either, both, or neither of the limits in a "From - To" range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria.
           
   Allowable Sensor Over-Range       Overrange specification limits the range of matching products to the specified range multiplied by a selected overrange factor. This keeps returned matches close to the range requirement and filters out products with a wider range than needed. "From", "To", and "Overrange" must all be specified to activate this option.

Example: User specifies a sensor with a range from 0-100. Without overrange specification, sensors with ranges of 0-100, 0-1000, and -10,000 to +10,000 are returned as matches. An overrange specification of 50% will filter out any sensors with a full scale range greater than 150. 

   Search Logic:      Matching products will have a range within the specified overrange limit.
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Features
           
   Your choices are...         
   For Use Inside Air Ducts       The device can be mounted inside an air duct. 
   Heat Detector       Heat detectors are fire detection devices that sense heat produced by combustion. They can trigger an alarm when they detect a rapid temperature rise or reach a preset temperature. 
   Interconnectable       Some detectors or ICs can be connected with other units for common signaling. For these devices, the specifications say "interconnectable" and indicate the maximum number of units that can be connected. Alternatively, the specifications indicate whether the device is suitable for relay connection. 
   Adjustable Sensitivity       The sensitivity level which triggers the alarm is adjustable. 
   Hermetically Sealed       The contacts are sealed to prevent exposure to explosive or corrosive gasses. 
   Wireless       The device uses wireless technology to communicate with an alarm system. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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