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FLIR EM54 HVAC-R Environmental Meter

The FLIR EM54 is ideal for inspecting and troubleshooting HVAC/R ducting systems within residential, commercial, and industrial facilities.

Next Day Delivery (subject to availability)

£199.00 excluding VAT £238.80 including VAT @ 20%
  • Data Logging
  • Includes Docking Cradle
  • Measures Air Temperature
  • Measures Relative Humidity
  • Multi Mode Operation
  • Min/Max/Avg data hold
  • LCD Display
  • FreeDelivery
  • 30DayMoneyBack
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  • Description
  • Features & Specification
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FLIR EM54 HVAC-R Environmental Meter

One tool provides all the environmental measurements you need

The FLIR EM54 is ideal for inspecting and troubleshooting HVAC/R ducting systems within residential, commercial, and industrial facilities. This meter can help you verify that duct inlets and outlets have the specified volumetric flow – a prerequisite to an efficient functional system. Featuring humidity, wet bulb, and dew point functions, the EM54 can measure deviations from proper relative humidity levels.
Plus, the included Type-K contact temperature probe is useful to check electric motors and thermal equipment components for proper operating temperatures.


Receive high-quality data consistently, and work without interruption. Using the tripod, place the meter away from objects that may influence
relative humidity measurements.


Work on a wide range of systems more efficiently using the contact temperature probe and wet bulb/dew point calculations.


Intuitively operate this simple, ergonomic meter with a backlit display, a ‘hold’ function that freezes readings, and well-marked function keys.

About FLIR

FLIR Systems - The World's Sixth Sense

FLIR Systems, Inc. designs, develops, manufactures, markets, and distributes technologies that enhance perception and awareness. We bring innovative sensing solutions into daily life through our thermal imaging systems, visible-light imaging systems, locator systems, measurement and diagnostic systems, and advanced threat detection systems. Our products improve the way people interact with the world around them, enhance public safety and well-being, increase energy efficiency, and enable healthy and entertained communities.

FLIR EM54 Environmental Meter
Measurement Range Resolution Accuracy
Air Temperature 30 ~ 60°C (-22 ~ 140°F) 0.1°C (1°F) ±1°C (±1.8°F)
10° ~ 30°C (50° ~ 86°F)
±2°C (±3.6°F) -30° ~ 9.9°C (-22° ~ 50°F) and 31° ~ 60°C (88° ~ 140°F)
Relative Humidity 5 ~ 98% 0.1% ±3.5%
Dew Point -30°C ~ 60°C (-22°F ~ 140°F) 0.1°C (1°F) F) ±3°C (4.8°F)
Wet Bulb -30°C ~ 50°C (-22°F ~ 122°F) 0.1°C (1°F) ±3°C (4.8°F)
K-Type Temperature -99.9°C ~ 1372°C (-148°F ~ 2502°F)
NOTE: The supplied Type-K probe cannot be used to measure temperature > rating printed on the connector
0.1°C (1°F) ± (1.5% +1°C [1.8°F]) -99.9° ~ 99.9°C (-148° ~ 212°F)
± (1.5% +2°C [3.6°F]) 100° ~ 1372°C (212° ~ 2502°F)
Air Velocity 0.4 ~ 30 (m/s) 79 ~ 5906 (ft/min) 1.4 ~ 108.0 (km/h) 0.9 ~ 67.2 (mph) 0.8 ~ 58.3 (knots) 0.01 (m/s) 1 (ft/min) 0.1 (km/h) 0.1 (mph) 0.1 (knots) ± (3% + 0.2 m/s)
± (3% + 39 ft/min)
± (3% + 0.7 km/h)
± (3% + 0.4 mph)
± (3% + 0.4 knots)
Airflow 0 ~ 999900 CFM 0 ~ 999900 CMM 0.001 ~ 100 0.001 ~ 100 Airflow is a calculation; airflow accuracy is dependent on the air velocity accuracy (specification listed above)

Orders requiring calibration 

Whilst we take the greatest care to get all orders dispatched and delivered to you in the stated time frame, orders received PM and requiring
calibration may on occasion miss dispatch that day, according to the complexity of the calibration. Be assured they will ship on the next dispatch
this in most cases should not add more than 24 hours to your delivery.

Bank/Public Holidays

Predicted delivery times are based on regular trading days Monday to Friday. Public holidays, bank holidays and weekends are outside the usual scope 
of our dispatch and subject to activities/holidays of our carriers and therefore may incur additional days lead time to your order.

*UK Mainland (Temporarily revised June 2020)

Please note that regrettably, we have had to realign our delivery service options to those available from our carriers.
During the current situation surrounding the effects of the Coronavirus pandemic, logistics from every company are under immense pressure to deliver goods on time.
We have taken the decision to temporarily limit our services rather than let our customers down.
We hope you will understand our position on this and we apologise unreservedly for the inconvenience we know this will cause.
We look forward to restoring our full delivery service schedule just as soon as we are able.

Standard FREE 1-2 Day Courier Delivery – UK Mainland only - Zones A & B

Included in the price for all orders over £75.00 (exc vat). Sent using express courier, delivered within 1-2 working days from the date of your order, subject to availability.


Next Day Anytime Delivery (Excluding Saturday & Sunday) – UK Mainland only - Zones A & B
Sent by express courier, delivered next day (excluding weekends) from the date of your order, subject to availability.


Orders must be placed before 3:00pm for a qualifying next day delivery and a telephone number supplied, subject to availability.

New Postage Map Sept 2018>

Delivery Surcharges

Because of the high cost of carriage, we need to apply a surcharge on all deliveries made in the following regions bringing the carriage charges to:

  • Zones A & B  - Mainland delivery rates apply. 
  • Zone C - Scottish Highlands (Charges are calculated at the checkout).
  • Zone D - Outer Hebrides, Orkney Isles, Shetland Isles, Isle of Man, Scilly Isles, and Channel Islands (Charges are calculated at the checkout).
  • Zone E - Northern Ireland (Charges are calculated at the checkout).
  • Zone F - Republic of Ireland (Charges are calculated at the checkout).

Offshore Services

All offshore deliveries are a 2 day service as standard. This includes Channel Islands, Northern & Southern Ireland, Scottish Islands, Isle of Man and the Scilly Isles.

International Delivery

International delivery charges are automatically added to your order at the checkout. For any questions regarding international deliveries please contact us at


All export inquiries should be directed to the export division before placement of order.

If no shipping option is available to your selected country please call us FREE on 0800 0224 060 to purchase your items.
All stated prices are subject to VAT at the current rate where applicable E&OA