Now Selling MSA Gas Detection, Respiratory, Fall Protection & Above The Neck
Now Selling MSA Gas Detection, Respiratory, Fall Protection & Above The Neck
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Ludlum Model 2221 w/ 44-10 2x2 Nal Probe Rental
Ludlum Model 2221 w/ 44-10 2x2 Nal Probe Rental
White Oak Environmental & Safety, LLC

Ludlum Model 2221 w/ 44-10 2x2 Nal Probe Rental

Regular price $57.75 Unit price per
Shipping calculated at checkout.
Indicated Use Low-level, wide-energy gamma detection
Detector Type NaI(Tl) scintillator, 5.1 cm (2 in.) dia. x 5.1 cm (2 in.) thick
Efficiency (4π) 125I: 4%
57Co: 20%
137Cs: 9%
60Co: 15%
Typical Sensitivity
(137Cs gamma)
900 cpm per μR/hr
Recommended Energy Range 30 keV to 3.0 MeV
Energy Response Energy dependent (see Energy Response Curve)
Typical Background
(10 µR/hr field)
9750 cpm
Photomultiplier Tube 5.1 cm (2 in.) diameter
Operating Voltage 500 to 1200 V
Temperature Range -20 to 50 °C (-4 to 122 °F)
May be certified to operate from -40 to 65 °C (-40 to 150 °F)
Environmental Rating IP65
Connector Series "C"
Construction Aluminum with beige powder coat
Size (D x L) 6.6 x 27.9 cm (2.6 x 11 in.)
Weight 1.04 kg (2.3 lb)

Part Number: 47-1540