ECO-TX-E721 Please log in to see price or purchase this item Quantity discounts available QuantityPrice SKU: ECO-TX-E721 MANUFACTURER: Ecolink Product Details 319.5Mhz (Qolsys/Interlogix) PIR Motion Sensor, 40lb Pet Immunity Product Details Back Product Details319.5Mhz (Qolsys/Interlogix) PIR Motion Sensor, 40lb Pet Immunity