Ludlum 2241-2RK w/44-9 Probe
The Ludlum Model 2241-2RK is a portable general-purpose survey meter equipped with a Geiger-Mueller detector for measurement of alpha, beta and gamma radiation.
The Model 2241 operated in either Ratemeter Mode with a moving decimal point and six-digit in Scaler Mode.
The unit has both visual and audible alarms.
Alpha Beta Gamma radiation surveys
NIST-Traceable certificate of calibration
|Ratemeter||Displays in R/hr Sv/hr cpm or cps|
|Display||Auto-ranging from 0.0 micro R/hr to 9999 R/hr; 0.000 micro Sv/hr to 9999 Sv/hr; 0 cpm to 999k cpm; or 0 to 100k cps|
|Audiio Alarm||Built-in unimorph speaker with ON/OFF switch > 60 dB at 2ft.|
|Alert/Alarm||Indicated by enunciator on display and audible tone|
|Power||Two \D\""" cell batteries about 200 hours operation.|
|Detector||Pancake type halogen quenched Geiger-Mueller|
|Sensitivity||Typically 3300 cpm mR/hr (137Cs gamma)|
|Operating Voltage||900 volts|
|Dimensions||1.8\""" x 2.7\""" x 10.7\"""|
|H x W x L||6.5 x 3.5\""" x 8.5\"""\"""||165 x 89 x 216 mm|
|H x W x L||3.5 lbs including batteries||1.6kg including batteries|