Item #EX/DM91, Wireless TRMS Multimeter / Datalogger - Flir / Extech

The FLIR DM90 & DM91 (Bluetooth/Datalogging) offers comprehensive features and durable design for quick and safe troubleshooting of electrical, electronic, and HVAC/R systems. Equipped with LoZ, VFD Mode, µA current measurement capability and more, the DM91 provides trusted results for the most accurate diagnosis of problems. The DM91 is enhanced with Bluetooth® technology to wirelessly connect via METERLiNK® to FLIR infrared cameras, or to mobile devices running FLIR ToolsTM or the FLIR InSiteTM workflow management system.

  • Diagnose complex systems with high and low voltage measurement capabilities
  • Measure True RMS, LoZ, and VFD, as well as microamp and milliamp current
  • Assess temperatures up to 400°C (752°F) with Type-K thermocouple
  • Work safely with built-in, non-contact AC voltage
  • User-friendly design with an intuitive interface and enhanced ergonomics
  • Work longer with flexible battery options, powerful LED worklights, and rugged, drop-tested design
  • Detect and document intermittent trends using the datalogging mode with on-board storage of 40k measurements (DM91)
  • Rely on the protection of CAT IV-600V, CAT III-1000V safety ratings
  • Send readings via METERLiNK to compatible FLIR infrared cameras to embed data into live or saved thermal images (DM91)
  • Wirelessly connect to FLIR Tools or the FLIR InSite workflow management application, for efficient troubleshooting and streamlined inspections (DM91)
Flir dm90 91 specs


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Item Name
TRMS MultiMeter, Wireless, with Datalogging