System Sensor D4240 4-Wire Photoelectric Duct Smoke Detector for HVAC Systems
$ 281.96
Description
System Sensor D4240 4-Wire Photoelectric Duct Smoke Detector System Sensor D4240 4-Wire Photoelectric Duct Smoke Detector eBay id: 404627537679 SKU: D4240 The System Sensor D4240 4-wire photoelectric duct smoke detector features a pivoting housing that fits both square and rectangular footprints and mounts to round or rectangular ductwork. Also, this unit operates in airflow speeds of 100 to 4,000 feet per minute, temperatures of –4°F to 158°F, and a humidity range of 0 to 95 percent (non-condensing). Besides, a plug-in sensor head offers improved false alarm immunity and simple installation, testing, and maintenance. An improved cover design isolates the sensor head from the low-flow feature for simple maintenance. In general, the System Sensor D4240 provides ample wiring space, a ¾-inch conduit knockout, and built-in short-circuit protection to prevent damage to sensitive components during installation. High-contrast terminal designations make wiring easy. With its 2:1 sensor-to-power capability, the power board of the D4240 may be used to monitor a second sensor, D4S, simultaneously (i.e., supply and return side). As many as 50 InnovairFlex detectors can be interconnected. When one unit senses smoke, all interconnected detectors will switch their relays; only the detector sensing smoke will go into alarm, enabling the fire location to be pinpoint. Features / Specifications Photoelectric, integrated low-flow technology Versatile mounting options: square or rectangular configuration The plug-in sensor offers superb false alarm immunity and the latest sensor technology Broad ranges for operating temperature (–4°F to 158°F) and humidity (0% to 95% non-condensing) Patented sampling tube installs from the front or back of the detector with no tools required One easy-access Test/Reset button and improved LED status New high-contrast terminal designations Built-in short-circuit protection from operator wiring errors Download the Specification sheet in *.pdf format Similar Item Shipping Services We offer the following shipping services: USPS Priority Mail UPS Ground If you would like your package shipped differently, please contact us. Payment We accept the following payment methods: PayPal Visa Master Card American Express Discover Do not hesitate to contact us if you have any questions. International Shipping If you are outside the United States and need our items you can contact us through an Ebay message. We offer 2 shipping options if they do not work, please contact us and we will make changes for you. We process all orders the same day when we receive the payment before 5:30 PM ET. Daily we strive to provide the best service to our buyers and give the highest satisfaction but if for some reason there is an error to receive your purchase please contact us before leaving a negative feedback. Warranty Please be aware that we are not authorized distributors. We can not guarantee the featured item will have the manufacturer's warranty or support.
