FLIR DM90 - True RMS Multimeter with Type K Temperature | FLIR Systems  
FLIR DM90 - True RMS Multimeter with Type K Temperature | FLIR Systems

TRMS Multimeter with Type K Temperature

The FLIR DM90 and DM91 offer the comprehensive features and durable design professionals need to quickly and safely troubleshoot electrical, electronic, and HVAC/R systems. Equipped with LoZ, VFD Mode, µA current measurement capability and more, the DM90/DM91 multimeters give you trusted results for the most accurate diagnosis of electrical problems. The DM91 is also enhanced with Bluetooth® technology, so you can 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 True RMS, LoZ, VFD, and high- and low-voltage measurement capabilities. You can also assess temperatures up to 400°C (752°F) with the supplied Type K thermocouple, or take non-contact AC voltage readings with the built-in detector.




The DM90/DM91 are designed and built to make your job faster and easier. Work longer without interruption, thanks to powerful LED worklights and flexible battery options. Plus, the DM91 offers a datalogging mode with onboard storage of up to 40,000 measurements, so you can document intermittent trends.




The DM91 uniquely features Bluetooth METERLiNK® so you can send readings to FLIR ToolsTM or to the FLIR InSiteTM workflow management app, embed the data in FLIR thermal camera images, or instantly share with clients.


FLIR DM90/DM91 Features


Rich feature set

Includes True RMS, VFD mode, uA measurement, LoZ, NCV, and more


CAT IV-600V, CAT III-1000V Safety Category Rated

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Thermocouple input + test probe

The DM90 includes high-quality test probes and a Type K thermocouple input

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Smart design and functionality

Intuitive user interface, large display screen, LED worklights

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Drop-tested and IP54-rated for water resistance


Includes Limited Lifetime Warranty


FLIR DM90/DM91 Specifications

Features by Meter DM90 DM91
Data Storage with Recall

1 file of 40k readings

Maximum Voltage 1000 V DC, 1000 V AC True RMS
  Range Basic Accuracy
Frequency Counter 100.00 Hz ±0.1%
Resistance 6.000 MΩ ±0.9%
Continuity Check 600.0 Ω ±0.9%
Capacitance 10.00mF 1.9%
Diode Test 1.500 V
Temperature, Type-K Thermocouple -40.0 to 752.0°F DMM ±(1.0% + 5.4°F)/IGM ±(1.0% + 9°F)
-40.0 to 400.0°C DMM ± (1.0% + 3°C)/ IGM ±(1.0% + 5°C)
Measuring Rate 3 samples per second
General Information 3000A AC (Optional TA72/74) ±3.0% + 5 digits
Display Count 6000
Category Rating CAT IV-600V, CAT III-1000V
IP Rating IP54 IP40
Battery type  4x AAA 3x AA
Drop Test 3 meters
Battery Life Alkaline: approx. 110 hrs
Lithium polymer (optional): approx. 500 hrs
Warranty Limited lifetime warranty

Call 1-866-477-3687 to chat with a knowledgeable specialist.

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