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)

Additional information

Weight	7 lbs
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