The iSeries BX-80NRi from Optex is a wireless-ready, outdoor detector that provides the stability and reliability necessary for an outdoor PIR sensor. The iSeries version comes with an Inovonics EN1941 transmitter and battery pre-installed and allows installers to save valuable installation time and labor costs because no trenching, installing conduit or pulling wire is required. With long, narrow detection areas that extend from both its sides, the battery-powered BX-80NRi is specifically designed to be wirelessly wall-mounted centrally on a building. This unique detection pattern covers the building perimeter with a multi-layered, horizontal barrier that detects intruders before they break in. To help reduce false activations, the range can be adjusted so that detection extends only to the end of the building. The unit also has a size-judging function, which helps it discriminate between large and small objects within the detection area.