Takex PB-100AT-KH Anti-Crawl Beams are available for high-security applications to detect low-level or crawling intrusion, designed specifically for use in Takex TA Series Beam Towers. Supplied with PTKH 'Quickfix' mounting brackets for fast, trouble-free assembly, the beam units locate in vertical slide-channels in the TA tower spine, allowing easy and precise height adjustment.