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Ion Chamber Survey Meter, Beta Slide Radiation Measurement

  • Mfr # 451B-RYR

  • Zoro # G2458477

product price:  $6,249.99
/ea
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Key Features

Operating Range
0 to 5 mR/hr or 0 to 50 uSv/hr, 0 to 5 R/hr or 0 to 50 mSv/hr, 0 to 50 mR/hr or 0 to 500 uSv/hr, 0 to 50 R/hr or 0 to 500 mSv/hr, 0 to 500 mR/hr or 0 to 5 mSv/hr
Gamma Radiation Range
Above 7 keV
Alpha Energy Sensitivity
7.5 MeV
Beta Energy Sensitivity
100 keV
Gamma and X-ray Energy Sensitivity
From 7 keV
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Specifications

Product Information

MFR #
451B-RYR
Zoro #
G2458477
UPC #
095969328777
Country of Origin
United States

Dimensions

Manufacturers Warranty Length
1 yr
Manufacturer Warranty Length
1 yr
Battery Size
9V

Details

Operating Range
0 to 5 mR/hr or 0 to 50 uSv/hr, 0 to 5 R/hr or 0 to 50 mSv/hr, 0 to 50 mR/hr or 0 to 500 uSv/hr, 0 to 50 R/hr or 0 to 500 mSv/hr, 0 to 500 mR/hr or 0 to 5 mSv/hr
Gamma Radiation Range
Above 7 keV
Alpha Energy Sensitivity
7.5 MeV
Beta Energy Sensitivity
100 keV
Gamma and X-ray Energy Sensitivity
From 7 keV
Battery Life
Approximately 200 hr
Accuracy
+/-10% of Reading Between 10% and 100% of Full-scale Indication on Any Range, Exclusive of Energy Response (Calibration Source is 137Cs)
Includes
Beta Slide
Calibration Certificate
NIST
Item
Radiation Survey Meter
Powered By
(2) 9V Batteries
Display Units
2-1/2 Digit Digital Display, Analog Bar Graph with a Permanent Scale on the Display
Display
LCD
Calibration Certificate Type
NIST
Number of Batteries Required
2
Maximum Dose Rate
500 uSv/hr
Display Type
Digital
Battery Voltage
9V
Measuring Units
mR/hr, R/hr, uSv/hr
Digital Display Screen Type
LCD
Gamma Energy Sensitivity
7 keV
Minimum Dose Rate
0 uSv/hr
Battery Run Time
100 hr
Battery Chemistry
Alkaline

Description

The Fluke Biomedical Ion Chamber Survey Meter (Model 451B-RYR) is a precision instrument for detecting alpha, beta, gamma, and X-ray radiation levels. Made in the USA, it features dual digital and analog displays for clear, accurate readings across multiple radiation units and ranges. Its high sensitivity and NIST-traceable calibration ensure reliable performance for medical, industrial, and environmental monitoring.

Key Features:

  • Measures alpha, beta, gamma, and X-ray radiation with high sensitivity
  • Dual display: 2-1/2 digit digital LCD plus analog bar graph for real-time readings
  • Multi-unit measurements: mR/hr, R/hr, and μSv/hr over broad ranges (0 to 5 R/h and 0 to 500 mR/h)
  • Energy sensitivity: 7.5 MeV (alpha), 100 keV (beta), 7 keV+ (gamma/X-ray)
  • Powered by two 9V alkaline batteries, offering approximately 200 hours of operation
  • Includes NIST calibration certificate with accuracy within ±10% of reading (10%-100% scale)
  • Beta slide accessory for enhanced beta radiation measurement
  • Suitable for medical, industrial, and environmental radiation monitoring applications

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