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FOTRIC 840-Ex Series
Product Introduction:
Professional handheld explosion-proof thermal imager, temperature range -20°C to 700°C- Consultation Hotline:18615230752 Landline:0531-88975421
Product Details
Technical parameters
Application scenarios
Optional accessories
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The FOTRIC 840-Ex series dives deep into the user market, understanding users' habits. With an ultra-simple interface design, users can start testing without a manual and explore the mysteries of thermal imaging.
Product Overview

Technical parameters
Basic Parameters
| Specification | Value |
|---|---|
| Infrared Resolution | 160 × 120 |
| Super-Resolution (SR) | Enhanced to 320 × 240 |
| Detector Type | Uncooled infrared focal plane array |
| Thermal Sensitivity (NETD) | 50 mK (0.05°C) |
| Pixel Pitch | 17 µm |
| Spectral Response | 7–14 µm |
| Image Frame Rate | 30 Hz |
| FOV | 46° × 35° |
| Spatial Resolution (IFOV) | 5.13 mrad |
| Minimum Focus Distance | 0.1 m |
| Lens Focal Length | f3.3 |
| Focus Mode | Manual focus and focus-free from 0.4 m |
| Digital Zoom | 1–8×, continuous via scroll wheel |
Special Features
| Feature | Supported |
|---|---|
| Cloud Thermal | Not supported |
| T-DEF | Visible-light temperature measurement; adjustable thermal transparency 0%–100% |
| MagicThermal | Supported — in live thermal view, touch to display target area in color thermal while other areas show in black-and-white thermal |
| IREdge | Supported |
| T-TWB | Supported |
| HawkAI | Supported |
| AI Temperature Screening | Supported |
Measurement & Analysis
| Specification | Value |
|---|---|
| Temperature Range | –20°C to 550°C |
| Temperature Ranges | –20°C to 120°C; 0°C to 550°C |
| Smart Range | Supported |
| Measurement Accuracy | ±2°C or ±2%, whichever is greater (at 25°C ambient) |
| Measurement Points | 12 |
| Measurement Lines | 6 |
| Measurement Areas | 12 |
| Global Measurement Correction | Emissivity, ambient temperature, reflected temperature, relative humidity, target distance, IR window (temperature and transmittance) |
| Area Measurement Correction | Per-area emissivity supported |
| Area Alarm | Supported |
| Temperature Rise Function | Supported |
| On-Device Analysis | Direct thermal image and video analysis on the device |
| Analysis Software | AnalyzIR professional thermal analysis software |
Image Display
| Specification | Value |
|---|---|
| Display | 3.5-inch, 640 × 480 |
| Image Modes | Thermal, visible light, PIP, T-DEF |
| Color Palettes | 8 palettes: Grey, Iron, Rainbow, GreyRed, Rain, GlowBow, Medical, Prism; palette inversion and real-time preview switching supported |
| Temperature Span Modes | Auto (min 3°C); manual (min 2°C); touch-selectable max/min (min 2°C) |
| Color Alarm | Above, below, or between temperature |
| Image Overlay | Global max/min/average temperature, measurement parameters |
| Hot/Cold Tracking | Auto-tracking markers for max and min temperature points |
Capture
| Specification | Value |
|---|---|
| Camera | 8 MP industrial-grade camera |
| Storage | TF card, standard 32 GB (~100,000 images); compatible with 64 GB and 128 GB TF cards |
| Capture Mode | Single frame and timed capture |
| File Format | JPEG (full radiometric thermal), visible image, IRS (full radiometric video), MP4 (non-radiometric video) |
| Freeze / Capture | Supported; single frame capture and full radiometric video recording |
| QR/Barcode Scan | Supported — used as a label tag |
| Annotations | Voice, text, label, and favorite annotations supported |
| Full Radiometric Video | Recordable for on-device analysis |
| Non-Radiometric Video | Thermal and visible-light video (view-only, not for analysis) |
| On-Device Gallery | View, edit, and delete captured thermal images and video files |
Data Connectivity
| Specification | Value |
|---|---|
| Cellular | Full-scheme 4G cellular network |
| WiFi | 2.4 GHz & 5 GHz, 802.11a/b/g/n/ac |
| Bluetooth | BT4.2 LE, connects to Bluetooth headsets |
| USB | USB Type-C; USB 3.0/2.0 compliant, USB OTG |
| HDMI | Micro HDMI, HDMI 1.4 compliant, 60 Hz 1080p |
| FTP Quick Transfer | Connect to the imager via WiFi/hotspot using FTP |
| PC Full Radiometric Stream | Analyze full radiometric video via FOTRIC AnalyzIR |
| Remote Display | Thermal video stream via Type-C 3.0 to PC (AnalyzIR); HDMI to display/projector |
| Remote Control | Full remote operation via FOTRIC AnalyzIR |
Auxiliary Functions
| Specification | Value |
|---|---|
| Laser | Class 2; wavelength 635 nm; power <1 mW |
| Positioning | BeiDou / GPS / GLONASS; position data saved in each static thermal image |
| Compass | Not supported |
| LED Flashlight | Flashlight and strobe mode |
Power System
| Specification | Value |
|---|---|
| Battery | 3.6 V, 5000 mAh Li-ion; field-replaceable and rechargeable |
| Battery Life | ≥5 hours |
| Charging | Battery charger |
| Charging Time | 2.5 hours (full) |
| Power Saving | Auto screen-off |
| External Power | Not supported |
Reliability & Certification
| Specification | Value |
|---|---|
| Safety Standard | SELV (GB 4943.1-2011 / IEC 60950-1:2005) |
| Intrinsic Safety | Ex ib ⅡC T4 Gb |
| EMC | GB/T 17626.2 / IEC 61000-4-2 |
| Ingress Protection | IP54 |
| Drop Resistance | 2 m (GB/T 2423.8 / IEC 60068-2-32) |
| Shock Resistance | 25 g (GB/T 2423.5-2019 / IEC 60068-2-27:2008) |
| Vibration Resistance | 2 g (GB/T 2423.10-2008 / IEC 60068-2-6:1995) |
| RoHS | Compliant |
Physical
| Specification | Value |
|---|---|
| Operating Temperature | –20°C to 50°C |
| Storage Temperature | –40°C to 70°C (without battery) |
| Relative Humidity | <95% RH |
| Dimensions | 243 × 95 × 142 mm (H × W × L) |
| Weight | 730 g (with battery) |
| Housing Material | Hard plastic: PC+ABS; soft grip: TPE |
| Mounting | UNC 1/4-20 tripod interface |
Warranty & Maintenance
| Specification | Value |
|---|---|
| Warranty | 2 years on the whole unit |
| Recommended Calibration Cycle | 2 years |
| Supported Languages | Chinese, English |
| Standard Accessories | Infrared thermal imager host, 2 × rechargeable Li-ion battery, battery charger, power adapter, USB Type-C to USB cable, Micro HDMI to HDMI cable, 32 GB TF card, TF card reader, lanyard, documentation bag (packing list, calibration certificate, user manual, certificate of conformity, warranty card), portable soft case |
Application scenarios
Oil pipeline insulation defect detection
Insulator heating detection
Conductor and ground wire heating detection
Motor heat dissipation monitoring
Cable inspection and monitoring
Optional accessories
Contact usContact us

Address
山东省济南市历城区花园路鑫苑中心A1-804

Telephone
18615230752/0531-88975421

Mail
346159705@qq.com

186-1523-0752
0531-88975421


