Indicated Use	Sample counting
Detector	ZnS(Ag) scintillator
Window	0.4 mg/cm²
Efficiency	²³⁰Th: 30%
Typical Background (10 µR/hr)	≤ 3 cpm
Photomultiplier Tube	3.8 cm (1.5 in.) diameter
Operating Voltage	500 to 1200 V
Sample Size (max.)	2.54 cm (1 in.) dia.
Sample Holder	O-ring sealed stainless steel slide
Size (D x L)	Detector: 7.6 x 21.6 cm (3 x 8.5 in.) Sample Tray: 4.6 x 14 cm (1.8 x 5.5 in.)
Weight	0.9 kg (2 lb)

Model	Description	Part Number
Model 2000	Scaler Scaler Range: 0 to 999,999 counts Timer: 0 to 999 minutes	48-1648
Model 2200	Scaler-Ratemeter Scaler Range: 0 to 999,999 counts Ratemeter Range: 0 to 500,000 cpm Timer: 0 to 999 minutes Adjustable window	48-1651
Model 3000	Digital Survey Meter	48-4035
Model 3001	Digital Survey Meter 4 detector setups	48-4036
Model 2221	Analog Scaler-Ratemeter with Digital LCD Single channel analysis	48-2065
Model 2241	Auto-Ranging Digital Scaler-Ratemeter RS-232 port	48-2444

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