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.
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.
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.
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.
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.
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.
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.
Thermoelectric detectors use ether a thermistor or thermocouple to measure temperature change. A thermistor is a resistor where the change in resistance indicates a temperature change. A thermocouple measures the voltage change across a metallic conductor.
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.
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.
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.
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.
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.
