Model 2241-RK Response Kit

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DETECTORS: Model 44-9 Pancake G-M, Model 44-2 Gamma Scintillator
DET1/DET2: A locking toggle switch to allow for quick change between two detector setups
CONNECTOR: Series "C" (others available on request)
AUDIO: Built in unimorph speaker with ON/OFF switch (greater than 60 dB at 2 feet)
ALERT/ALARM: Indicated by enunciator on display and audible tone
DISPLAY: 4 digit LCD display with 0.5"(1.3cm) high digits, separate enunciators for display units, alert, alarm, low battery, detector overload, counting overflow, and scaler counting
BACKLIGHT: Push-button to activate 
RATEMETER: Can display in R/hr, Sv/hr, cpm, or cps when control switch is in RATEMETER position
DISPLAY RANGE: Auto ranging from 0.0 R/hr - 9999 R/hr; 0.000 Sv/hr - 9999 Sv/hr; 0 cpm - 999k cpm; or 0 cps - 100k cps
LINEARITY: Reading within plus or minus 10% of true value with detector connected
SCALER: Activated by push-button in handle (count time adjustable from 1 - 9999 seconds in 1 second intervals) 
CALIBRATION CONTROLS: Accessible from front of instrument (protective cover provided)
HIGH VOLTAGE: Adjustable from 200 - 2500 volts
DISCRIMINATOR: Adjustable from 2 - 100 mV
OVERLOAD: Indicated by OVERLOAD on display (adjustable depending on detector selected)
RESET: Push-button to zero display, acknowledge and/or reset alarm
POWER: 2 each "D" cell batteries (housed in sealed compartment that is externally accessible)
BATTERY LIFE: Typically 200 hours with alkaline batteries (low battery indicated on display)
CONSTRUCTION: Cast and drawn aluminum with beige polyurethane enamel paint
TEMPERATURE RANGE: -4° F(-20° C) to 122° F(50° C) 
May be certified for operation from -40° F(-40° C) to 150° F(65° C)
SIZE: 6.5" (16.5 cm)H X 3.5" (8.9 cm)W X 8.5" (21.6 cm)L
WEIGHT: 3.5 lbs (1.6 kg) including batteries