The FLIR CM83-NIST is an industrial-grade power clamp meter engineered with advanced power analysis, harmonics measurements, and variable frequency drive (VFD) filtering functions to meet the needs of electrical troubleshooters. The meter features Bluetooth® technology to connect compatible mobile devices for remote viewing and sharing, and METERLiNK® technology to wirelessly embed electrical readings into radiometric infrared images on compatible FLIR thermal cameras. Comes with certificate traceable to NIST.