... -- ROR, Fixed Temperature HEIMAN Fire Alarm Products4 Wire Conventional Heat Detector --- HM-203HC-4Power Supply Non-Polar Input Low Standby Current ... Compatiable with Heiman HM-612 Series and HM-613Series Detectors Network Type4 WireOPerating VoltageDC 9~35VStandby Current2mA (relay N.O.); ... control on material, testing, quality, leadtime etc. Fire Alarm Heat Detector (Rate-Of-Rise, Fixed Temperature)