Have you ever wanted to bid a nice perimeter job but did not want to hassle with trenching? Now your day has come thanks to Chino, Calif.-based Optex America. The new AX-100TFR and AX-200TFR battery-operated photoelectric detectors are a revolution in the perimeter security industry, offering a significant cost saving alternative to a traditional hardwired system. No trenching is required, drastically reducing installation costs. The units come wireless ready with a multifunctional back box and are compatible with most manufacturers' wireless systems. The AX-TFR Series comes with four 3.6V batteries, with an average lifespan of 5 years on the 100-foot model and three on the 200-foot version. optexamerica.com