The Teledyne FLIR MR77NISTL 5-in-1 Moisture Meter with METERLiNK Technology and NIST Calibration performs all of the critical and advanced measurements professionals demand. The Teledyne FLIR MR77-NISTL is a rugged and feature-rich moisture meter that is designed to help you tackle critical restoration and remediation projects. It uses a pinless sensor or an external pin probe to accurately measure the moisture content up to .75 inches below the surface of various wood types and building materials. The MR77-NISTL also features a field-replaceable temperature/humidity sensor, Bluetooth connectivity to mobile devices, and the ability to capture surface temperatures using a spot IR thermometer with laser pointer.