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Ludlum Model 44-25 has 2 GM Probes and a single connector to hook to your meter. Allows monitoring of a larger area than a single GM tube. Great for frisking hands and feet. Can be used with a stand, or without.
Specifications
INDICATED USE: alpha, beta, gamma survey of hands
SUGGESTED INSTRUMENTS: general purpose survey meters, ratemeters, and scalers
DETECTOR: 2 pancake-type, halogen quenched GMs
SENSITIVITY: typically 6600 cpm/mR/hr
BACKGROUND: 120 cpm
WINDOW: 1.7 + 0.3 mg/cm² mica
WINDOW AREA: 31 cm² (4.8 in²) active; 18 cm² (2.8 in²) open
EFFICIENCY (4π): 5%-14C; 22%-90Sr/90Y; 19%-99Tc; 32%-32P; 15%-239Pu
ENERGY RESPONSE: energy dependent
OPERATING VOLTAGE: 900 volts
CONSTRUCTION: aluminum housing
SIZE: 24.1 x 15.2 x 19.8 cm (9.5 x 6.0 x 7.8 in.) (H x W x L)
WEIGHT: 1.5 kg (3.3 lb)
