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Model AT-138


  • Sensitive to Gamma and X-ray
  • 0 to 200 mR
  • Lightweight
  • Hermetically Sealed
  • Sturdy Pocket Clip
  • Meets ANSI N13.5 & N322-1997
  • Responds Well to Fast Pulse X-Rays
  • Low Leakage, Measures Background

This direct reading dosimeter is a ruggedly constructed precision instrument for measuring and reading accumulated dose of gamma and X-ray radiation exposure up to 200 mR. Applications include personal and environmental monitoring. The low-energy feature has hospital applications including fluoroscopy, portable radiography, and angiography. A hardened sapphire end window provides clean, scratch-proof viewing of measurements. This pocket-sized instrument is lightweight and has a sturdy clip to attach to an individual's pocket for constant use and ongoing protection.

To ensure accurate readings, the AT-138 must be zeroed before use with a dosimeter charger, such as the AT-909 or The Charger (see the Options tab below for more information).

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