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We measure accurate temperature in extreme conditions


A4-EX is a Multi-wavelength plug and play pyrometer use application specific data base derived from years of experience in real application. AST A4-EX use special algorithms to accurately calculate both the actual temperature and emissivity of the surface.A4-EX can hold multiple data base so that single instrument can be easily switched between multiple application like Molten metal, Extruded profiles, Rolled aluminium surface, Continuous casting, Aluminum billets, Slabs etc.

Model Temperature Range Emissivity Aiming Download
A4-EX 170°C – 550°C
200°C – 650°C
250°C – 870°C
300°C – 1150°C
0.1 -1.0 Laser Pilot Light Datasheet

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Key Features

  • Simple to use-No calibration required
  • High accuracy-(1%) in real site conditions
  • Capable of measuring targets with variable emissivity
  • Measures through smoke,dust,water vapor etc.
  • Rugged design
  • Full range of accessories
  • Wide range of built-in functions
  • A4-SW Application software for PC
  • A4-SWA Mobile Application software for Android via Bluetooth

Standard Scope of Supply

  • Integrated laser pilot light
  • Digital Interface RS-232
  • Calibration certificate,PC Software & Operation Manual


  • Mechanical and Electrical Accessories
  • Analog Output:0…20mA or 4.20mA or 0-10V or K type T/C
  • Extra Cable Lengths
  • RS422,USB,Bluetooth

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