Digital Radiation Survey Meter w/internal detector

An internal GM detector and digital auto-ranging display make the DSM-504 an impressive combination of simplicity and accuracy. Designed for users of radiation devices in industrial process applications needing the accuracy in lower range dose monitoring but the higher range capability of evaluating the extent of emergency situations.

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Product Specifications

Input Sensitivity0.05V
Display-LCD4-Digit x .75" LCD w/LED Backlight
LCD Refresh Rate0.8 - 3.0 Sec in 0.2 Sec increments - adjustable
Display BacklightPush button, 30 Second auto off
Dose Ranges1mR/hr to 50R/hr
CPM Ranges0-999.9 Kcpm
Probe LinearizationInternal adjust for cal constant and dead time
Scaler Ranges0-999.9 Kcpm
Scaler Count Time Ranges10-2550 Seconds (10 second increments)
Alarms5-95% of Range
DiagnosticsLow Battery, Overrange - Audible and Visual Alarms
Range AdjustmentAuto-Ranging All Scales
Electrical Non-Linearity< 5%
Response TimeFast - 10-2550 Seconds (adjustable) | Slow 10-250 seconds (adjustable)
Environmental-20° F[-28° C]-140° F[60° C] | 5-95% RH IPX4 Housing
High VoltageAdjustable 300-1500 VDC|Regulation +-1%
Battery6 "AA" Alkaline-400 hours nominal
CircuitryDigital Microprocessor Controlled
Dimensions5.25" (14cm) H x 4" (10cm) W x 7" (18cm) L
Weight2.5 lbs. (1.2 Kilos) w/Batteries
ConstructionHeavy Duty Cast Aluminum and Stainless Steel
ProbesInternal Energy Compensated GM 0-100 R/hr
Data Output (optional)9 Pin Serial RS-232 - Panel switch manual data extraction
Questions? Call today!
(208) 557-6945

Mailing Address
W. B. Johnson Instruments
3998 Commerce Cir.
Idaho Falls, Idaho 83401

Shipping Address
W. B. Johnson Instruments
3998 Commerce Cir.
Idaho Falls, Idaho 83401