1,000 Ohm Nickel RTD, Connection Head Probe, 1 2" X 1 2" NPT, 12” TIHB1K0 DUCT RH & TEMP SENSOR Rango de Presion:0 a 1" w.c. DUCT RH & TEMP SENSOR 0 10V 2% NPT 2 Way 202 CV Plated Brass Trim DCA Profile On Off(Fail Closed) 100 250 Vac 1 Aux Switch Nema 3R Enclosure Connection Head Probe 1 2" X 1 2" NPT