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GF.706S SF6 Gas Detection Thermal Imager

The GF.706S is a high-sensitivity cooled infrared gas detection camera designed for SF₆ leak monitoring in substations and high-voltage electrical equipment.
It enables remote, non-contact detection of sulfur hexafluoride gas leaks under normal equipment operating conditions, significantly improving inspection safety and efficiency.
With a cooled QWIP detector, 11 color palettes, HD OLED viewfinder, and advanced temperature measurement tools, the GF.706S delivers elite-level gas imaging performance for industrial power environments.

Key Features

  • Cooled QWIP detector with extremely high thermal sensitivity
    • NETD < 0.025°C

  • Detects SF₆ and multiple industrial gases:
    • SF₆, ammonia, ethyl cyanoacrylate, chlorine dioxide, acetic acid, chloral dimethyl fluoride, ethylene, MEK

  • Remote, non-contact gas leak visualization using passive IR imaging

  • HD dual display system:
    • 0.6" OLED viewfinder
    • 5" LCD touchscreen (rotatable)

  • Photo, voice, and full video recording capabilities

  • 11 imaging palettes including Iron Red, Rainbow, B/W, B/W Inversion

  • Automatic/manual contrast & brightness control

  • Advanced measurement tools:
    • 10 movable spots
    • 5 movable areas
    • Line profiles
    • Isotherms
    • Temperature difference display
    • Alarm (voice & color)

  • Rugged design: IP54, –20 to +50°C operating temp

How It Works / Overview

The GF.706S uses cooled QWIP longwave infrared detection to identify gas spectral absorption of SF₆ and other industrial gases.
By imaging the gas as it absorbs IR energy, leaks appear as visible plumes even when invisible to the human eye.

Its cooled detector (<0.025°C sensitivity) captures extremely small temperature and spectral variations, enabling:

  • Leak detection at long distances

  • Non-contact inspection of energized high-voltage components

  • Leak visualization without shutting down equipment

  • Fast scanning of switchgear, GIS, transformers, and breakers

Technical Specifications

Detector

  • Type: Cooled QWIP detector

  • Resolution: 320 × 256

  • Spectral Range: 9.8–11.2 μm (peak at 10.55 μm)

  • NETD: < 0.025°C

Optics & Imaging

  • FOV options:
    • 14.5° × 10.8° (0.5 m MFD)
    • 24° × 18° (0.3 m MFD)

  • Spatial resolution: 0.79 mrad or 1.13 mrad

  • Frame Rate: 60 Hz

  • Focus: Automatic / Manual / Electric

  • CCD Sensor: 3.2 MP CMOS (AF)

Display System

  • 0.6" high-res OLED viewfinder

  • 5" high-res LCD touchscreen (rotating)

Measurement Tools

  • Temperature Range: –40°C to +500°C

  • Accuracy: ±2°C or ±2%

  • Functions:
    • Movable spots (×10)
    • Movable areas (×5: max/min/avg)
    • Movable lines
    • Line profiles
    • Isotherms
    • Temperature difference
    • Alarm (voice / color)

  • Emissivity: 0.01–1.00

  • Background correction: Auto

  • Atmospheric correction: Auto (distance, humidity, ambient temp)

Image & Video Storage

  • Storage: 8 GB SD card (up to 32 GB supported)

  • Formats:
    • JPEG (thermal + measurement data)
    • MPEG-4 video

  • Voice annotation: 40 seconds per image

Power

  • Battery: Li-ion rechargeable

  • Runtime: 3 hours continuous

  • Charging: Intelligent charger or online power adapter

  • Power Saving: Auto screen saver + auto shutdown

Environmental

  • Operating Temp: –20°C to +50°C

  • Protection: IP54

  • Humidity: ≤95% (non-condensing)

  • Weight: 2.5 kg

  • Size: 335 × 160 × 172 mm

Standard Accessories

  • GF.706S Gas Leakage Thermal Imager

  • Shoulder Strap

  • Safety Box

  • Lens Cap

  • 2× Li-ion Batteries

  • Charger

  • Video Output Cable

  • Power Adapter

  • SD Card

  • SD Card Reader

  • Network Cable (Mini-USB to RJ45)

  • User Manual

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