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Model 30

The Ludlum Model 30 is a versatile and lightweight display unit intended for use with with an external detector for alpha, beta, or gamma radiation survey. Three modes of operation – RATE, MAX, and COUNT – are available for the user. Measurements can be collected in two sets of units (primary and secondary) for RATE and MAX modes in cps, Bq, dpm, R/hr, rem, or Sv/h units.



The user can switch between two sets of chosen units by simply pressing the Units button. An internal switch is used to enable or disable the front-panel setup feature to protect desired settings from inadvertent modification. Setup is also available via software available from Ludlum Measurements.

This instrument features a large, easy-to-read LCD (liquid crystal display) that may be rotated for maximum ease of use for the operator. Other features are an audio warning tone and easy, intuitive, user-friendly design. Splash-resistant construction allows the Model 30 to be used in outdoor environments. The instrument body is constructed of lightweight, durable, high-impact plastic.

The Model 30 is shipped ready for use with batteries, a 53 cm (21 in.) detector cable, and calibration certificate.

  • Attaches to Detector Allowing One-Handed Operation
  • Large Backlit Auto-Ranging LCD with Adjustable Viewing Angle
  • Simple Green, Yellow, and Red Status Indicators
  • 3-Button Intuitive Interface for Easy Operation
  • USB Port and All-Digital Calibration
  • Available Options Include Stretch Scope Configuration
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