Indicated Use	Alpha, beta, gamma sample counting
Detector Type	Gas proportional
Recommended Counting Gas	P-10 Mixture (10% methane, 90% argon)
Window	0.4 mg/cm² metalized polyester
Window Area	Active: 32 cm² (5 in²) Open: 32 cm² (5 in²)
Efficiency	¹⁴C: 10% ⁹⁰Sr/⁹⁰Y: 42% ²³⁰Th: 35% Gamma: <1%
Operating Voltage	Alpha: 900 to 1300 V Beta-Gamma: 1300 to 1700 V
Counter Threshold Setting	2 to 5 mV (typical)
Sample Size	Maximum 5.1 cm (2 in.) diameter
Sample Tray	Adjustable height from 0 to 0.9 cm (0 to 0.35 in.)
Connector	Series "C"
Size (H x W x L)	11.4 x 10.2 x 13.9 cm (4.5 x 4 x 5.5 in.)
Weight	0.9 kg (2 lb)

Model	Description	Part Number
Model 12	Analog Survey Meter	48-1609
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 2221	Analog Scaler-Ratemeter with Digital LCD Single channel analysis	48-2065
Model 2241	Digital Scaler-Ratemeter Auto-ranging RS-232 port	48-2444
Model 2241-2	Digital Scaler-Ratemeter Auto-ranging RS-232 port 2 detector setups	48-2731
Model 2350-1	Digital Datalogging Meter Stores 1000 data points Supports 16 detector setups	48-2751
Model 3030E	Alpha-Beta Scaler Dual channel for alpha-beta sample counting Scaler Ranger: 0 to 999,999 counts Timer: 0.1, 0.5, 1, 2, 5, 10, or 60 minutes PC interface	48-3448