The NT-T036 (NS-468 model) is an economical and reliable cable tester for basic verification of RJ11, RJ12, and RJ45 data cables. It quickly checks for opens, shorts, and miswires by using a sequence of LED lights on its green plate. Its compact size and straightforward operation make it a handy tool for quick checks on-site, helping to ensure that network drops and patch cables are wired correctly before deployment.