FLIR’s DM92 and DM93 world-class digital multimeters offer advanced variable firequency drive filtering to help you accurately analyze non-traditional sine waves and noisy signals. No matter what electrical challenge you're up against, the DM92 and DM93's powerful lighting and durable design will make the job simple. The DM93 offers additional features including Bluetooth technology to connect a compatible smartphone for remote viewing and sharing, and METERLiNK® technology, to wirelessly embed electrical readings into radiometric infrared images on compatible FLIR thermal cameras.