Certification : CEModel Number : WT145Place of Origin : China (Mainland)is_customized : Yes Conventional Heat Detector4-Wire Heat Detector 12/24v Conventional Dual Heat Detector Relay Output DetectorThey work perfectly with all conventional intelligent fire control panelsAdvanced MCU Expert Algorithm Software.Easy installation and maintenanceDurable sensor head, no need for replacementSMD circuit board design-satisfactory quality and reliability guaranteed1. GENERAL DESCRIPTIONThe detectors are photo-electronic detector uses a state of-the-artoptical sensing chamber. This detector is designed to provide openarea protection and to be used with most security alarm controlpanel.Two LEDs on each detector provide local 360° visible alarmindication. They flash every six seconds indicating that power isapplied and the detector is working properly. The LEDs latch on inalarm. LEDs will be off when a trouble condition exists indicatingthat the detector sensitivity is outside the listed limit. The alarm canbe reset only by a momentary power interruption.The detector that initiated the alarm condition will have its red LEdand relays latched until reset by panel.Heat detector and smoke & heat detector combine a photoelectronic sensing chamber and a temperature heat detector.2. SPECIFICATIONSOperating Voltage Range: 9 to 28 VDC Volts Non-polarizedStandby Current: ≤200μAMaximum Alarm Current (LED on): ≤45mAAlarm Relay Contact Ratings: 2A@ 24V DCOperating Humidity Range: ≤95%RH(40°C±2°C) Relative Humidity, Non-condensingOperating Temperature Range: -10°C to 50°C (14°F to 122°F)Smoke Alarm Sensitivity: 1.06±.26%FTTemperature Alarm Sensitivity: 57°C (135°F) A1R (only for with heat sensor)Height: 55 mm installed in BaseDiameter: 103 mmWARNINGTO PREVENT DETECTOR CONTAMINATION ANDSUBSEQUENT WARRANTY CANCELLATION, THE SMOKEDETECTOR MUST REMAIN COVERED UNTIL THE AREA ISCLEAN AND DUST FREE.3. INSTALLATIONNOTE: All wiring must conform to applicable local codes,ordinances, and regulations.INSTALL THE DETECTOR BASE1. Open area smoke or heat detectors are intended formounting on a ceiling or a wall in accordance with the firestandard in your country.2. Attach mounting base to ceiling or wall. The base ofthe detector can be mounted directly onto an electricaljunction box such as an octagonal (75mm, 90mm or100mm), a round (75mm), or a square (100mm) boxwithout using any type of mechanical adapter.3. Position all wires flat against terminals, and fasten thewires on the terminals, See Figure 1.4. Terminals function description:Terminal 1: Relay Output -COMTerminal 2: Relay Output – NO/NC (default NO)Terminal 3: DC Power –Terminal 4: DC Power +