Check the listing for details. SYSTEM SENSOR 2WT-B PHOTOELECTRIC SMOKE DETECTOR. Condition: New. Listed at 50.00 USD. SYSTEM SENSOR 2WT-B PHOTOELECTRIC SMOKE DETECTOR The System Sensor 2WT-B is a 2-wire, photoelectric i3 smoke detector with a 135°F fixed thermal sensor. Throughout the i3 series, installation is simple with its installer-friendly base and plug-in design. The base accommodates a broad range of back box and direct mounting options and provides ample space for pre-wiring the device. To complete the installation, the i3 detector plugs into its base with a simple Stop-Drop ’N Lock action. To reduce the likelihood of nuisance alarms, all i3 detectors are equipped with both drift compensation and smoothing algorithms. These capabilities minimize both short- and long-term causes of nuisance alarms, such as RF interference and dust accumulation. The System Sensor 2WT-B has red and green LEDs to simplify local status indication during power-up, standby, alarm, maintenance, and freeze trouble conditions. When in alarm, i3 sounder models generate an 85 dB temporal tone. If connected to the RRS-MOD reversing relay/synchronization module, all i3 sounders on the loop will activate when one detector is in alarm. The RRS-MOD also synchronizes i3 sounder output to ensure a clear audible signal. Features / Specifications Alarm Current: 130mA max. Freeze Trouble: 41°F Heat Sensor: 135°F Operating Temperature Range: 32° to 100°F Download the Specification sheet in *.pdf format Similar Item Payment We accept the following payment methods: PayPal Visa Master Card American Express Discover Please contact us if you have any questions. Shipping Services We offer the following shipping services: USPS Priority Mail (free shipping) UPS Next Day Air Saver UPS 2nd Day Air UPS Next Day Air If you would like your package shipped differently, please contact us. Please note: Even if you selected free shipping, your package may still be shipped UPS Ground International Shipping If you are outside the United States and need our articles you can contact us through an Ebay message. We offer 4 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 5:00 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.