Ludlum Model 2221 w/ 44-10 2x2 Nal Probe Rental P1 Probe Used with Horiba U-50 &

Used with Horiba U-50 & U/W-20 Series instruments for a single calibration point on multiple sensors

1000 ppm propane

so the mask is even more comfortable

• Password protection that limits individual user access

stretch resistant and lifelong legibility – markings in metric (mm) or engineering scale (1/100’)

Ludlum Model 2221 w/ 44-10 2x2 Nal Probe Rental P1 Probe Used with Horiba U-50 &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 (4) 125I: 4% 57Co: 20% 137Cs: 9% 60Co: 15% Typical Sensitivity (137Cs gamma) 900 cpm per R hr Recommended Energy Range 30 keV to 3. 0 MeV Energy Response Energy dependent (see Energy Response Curve) Typical Background (10 R hr field) 9750 cpm Photomultiplier Tube 5. 1 cm (2 in.) diameter Operating Voltage 500