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DM166 Thermal Imaging TRMS Multimeter (IGM)

The FLIR DM166 Thermal Imaging TRMS Multimeter is a must-have tool for commercial electricians, automation, electronics & HVAC technicians.

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  • Competitive quote
  • Expert technical advice/demos
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  • Competitive quote
  • Expert technical advice/demos
  • Trusted aftercare support




FLIR DM166 Multimeter - The Most Affordable DMM with IGM

This product is now obsolete. To find out more about the DM93 Advanced Digital Multimeter (the model which has superseded the existing DM range) CLICK HERE.

The FLIR DM166 Thermal Imaging TRUE RMS Multimeter is an affordable feature-packed tool housed rugged drop tested design!

Whether you‘re an electrician, work on electronics or you‘re an HVAC professional this affordable all-in-one tool will help you find problems quickly and diagnose them efficiently.

The FLIR DM166 is a versatile multimeter is packed with high and low voltage test functions to help you troubleshoot electrical, mechanical and HVAC systems, but it also boasts a 8 x 60 resolution thermal imaging camera to show you what‘s hot and what‘s not, guiding you to the precise location of a potential fault.

Locate overloaded circuits and loose connections with thermal imaging, target were to measure with the built-in laser and rely on proven FLIR multimeter test functions to diagnose over-heating components, faulty coils and other temperature anomalies.


▶ Troubleshoot with the FLIR DM166

FLIR DM166 Thermal Imaging TRMS Multimeter Video


FLIR DM166 Key Features:

  • 4,800 pixel thermal camera visually guides you to an electrical problem
  • Includes high-quality test probes and a Type-K thermocouple
  • Removes high-frequency interference with reading through VFD mode
  • Safely check for live connections using noncontact temperature measurement
  • Offers CAT III-600V, CAT IV-300V safety rating
  • Drop-tested and IP rated for greater durability

FLIR DM166 - Troubleshoot Faster

One tool gets the job done.

  • Quickly scan for overheating components with IGM
  • Diagnose faults with broad DMM test functions
  • Troubleshoot easier with the unique combination of onboard thermal imaging and traditional DMM test functions

FLIR DM166 - Work Safer

Identify energised and potentially faulty equipment from a safe distance.

  • Safely check for live connections using non-contact temperature measurement
  • Carefully measure voltage with integrated non-contact voltage detection
  • Work with peace of mind knowing your meter has a CAT III-600V, CAT IV-300V safety rating

FLIR DM166 - Diagnose Problems More Efficiently

  • Rich feature set covers both high-voltage and low-voltage applications
  • Reliably take 600 V AC/DC voltage measurements and 10 A AC/DC current measurements
  • Remove high-frequency noise that affects readings with the Variable Frequency Drive (VFD) measurement function
  • Precisely measure resistance up to 60 MΩ, frequency up to 50 KHz, and capacitance up to 10,000 µF

Check out the DMM Selection Guide Here


Comparison Chart for: FLIR DM166 Thermal Imaging TRMS Multimeter (IGM)

TypeTRMS Digital Multimeter with Non-Contact VoltageHVAC TRMS Digital Multimeter with TemperatureElectrical and Field Service TRMS Multimeter with VFD modeThermal Imaging TRMS Multimeter with IGM
MarketGeneral PurposeProfessionalProfessionalProfessional
IGM Resolution80 x 60
IGM Temperature Range-10°C to 150°C (14°F to 302°F)
Display Counts/Type6000/Backlit LCD6000/Backlit LCD6000/Backlit LCD6000/2.4” TFT
Bar Graph
Basic Accuracy0.5%0.5%0.5%0.5%
True RMS AC/DC Voltage600 V600 V600 V600 V
True RMS AC/DC Current10 A10 A10 A10 A
AC/DC µA Current
Resistance60 MΩ60 MΩ60 MΩ60 MΩ
Capacitance10,000 µF10,000 µF10,000 µF
Frequency50 kHz50 kHz50 kHz
Temperature-40°C to 400°C (-40°F to 752°F)-40°C to 400°C (-40°F to 752°F)-40°C to 400°C (-40°F to 752°F)
Data Hold
LoZ Mode
Low Pass Filter/VFD
Water Proof/Drop ProofIP40IP40IP40IP40/3 m
Non Contact Volt Detect (NCV)
Data StorageNoNoNoNo
Safety CategoryCAT III-600V CAT IV-300VCAT III-600V CAT IV-300VCAT III-600V CAT IV-300VCAT III-600V CAT IV-300V