FLIR T840

High-Performance Thermal Camera with Viewfinder

The FLIR T840 infrared camera is designed to help electric utility and other thermography professionals comfortably survey equipment both indoors or outdoors and seek out signs of failure all day long. Thanks to an integrated eyepiece viewfinder and a bright 4-inch color LCD display, the T840 makes it easy to conduct inspections outside in bright, challenging light conditions. The 180° rotating lens platform and thoughtful ergonomic design helps users quickly diagnose failing components in hard-to-reach areas. Pair the T840 with a FLIR FlexView™ dual field of view lens for the convenience to instantly switch from wide-area to telephoto scanning. A 6° telephoto lens option is also available to ensure accurate temperature measurement of small targets from farther distances.

Fast, flexible, accurate – in any work environment

Safely and comfortably assess equipment
Scan large areas from a safe distance with 464 x 348 resolution, and reduce the strain of full-day inspections with the 180° rotating optical block
Get industry-leading image clarity from FLIR Vision Processing™, MSX®, and UltraMax® to help you make the right call – fast
Get the most out of your workday with FLIR Ignite automatic image uploading directly from the camera and rapid reporting features that help you organize findings in the field

FLIR T840 Thermal Imaging Camera

Advanced Professional Thermal Camera for Electrical & Industrial Inspection

Key Features

  • High-resolution 464 × 348 thermal detector
  • Rotating optical block (180°) for ergonomic inspections
  • FLIR Vision Processing™ with MSX®, UltraMax®, and HDR
  • Laser-assisted autofocus for precise and fast focusing
  • On-camera inspection routes and measurement tools
  • Wi-Fi, Bluetooth, USB, and HDMI connectivity

Main Applications

  • Electrical inspections (panels, substations, utilities)
  • Mechanical and predictive maintenance
  • Industrial condition monitoring programs
  • Energy audits and facility maintenance
  • Manufacturing, utilities, and heavy industry

Imaging & Optical Specifications

IR Resolution 464 × 348 pixels
Thermal Sensitivity (NETD) < 30 mK at 30°C
Field of View (Standard Lens) 25° × 19°
Minimum Focus Distance 0.15 m
Image Frequency 30 Hz
Focus Laser-assisted autofocus, continuous, manual
Spectral Range 7.5 – 14 µm

Measurement

Temperature Range −20°C to 120°C
0°C to 650°C
Accuracy ±2°C or ±2%
Measurement Tools Multiple spot meters, area (min/max/avg),
Isotherms, Delta T, Line profile
Emissivity Adjustment Variable from 0.01 to 1.0

Display & User Interface

Display 4-inch LCD, 800 × 480 pixels
Touch Screen Capacitive touchscreen
Viewfinder Integrated OLED viewfinder
Image Modes Thermal, MSX®, Picture-in-Picture, Digital Camera

Storage & Connectivity

Image Storage Radiometric JPEG
Storage Media Removable SD card
Interfaces USB, HDMI, Wi-Fi, Bluetooth
Software Compatibility FLIR Thermal Studio, FLIR Route Creator

Power System

Battery Type Rechargeable Li-ion battery
Operating Time Approx. 4 hours per battery
Battery System Replaceable, hot-swappable
Charging In-camera or external charger

Physical & Environmental

Weight Approx. 1.3 kg (including battery)
Protection Rating IP54
Drop Test 2 m
Operating Temperature -15°C to 50°C
Storage Temperature -40°C to 70°C

Specifications are subject to change without notice. FLIR, MSX®, UltraMax®, and Vision Processing™ are trademarks of Teledyne FLIR LLC.