MJW Technical Services, Inc.

Print Sun September 05, 2010

Johnson Product List

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Survey Meters & Counter/Scalers


ModelDescriptionApplication
GSM-115 (CE)
  • 4 Range Microprocessor Survey Meter
  • 500, 5,000, 50,000 & 500,000 CPM
  • .2, 2, 20 & 200 mR/hr - Low Battery & Saturation, LED's HV & battery meter
  • Built-In Audible
  • Response Variable 4-20 Seconds
  • General Purpose 2.5" Meter that is compatible with most Johnson Probes. Ranges from micro R to 10R/HR
GSM-500 (CE)
  • 4 Range Microprocessor Survey Meter
  • Auto Ranging Integrate & Peak Hold
  • 500, 5,000, 50,000 & 500,000 CPM
  • Dose Ranges 25 Micro R/hr to 1 R/hr Depending on Probe
  • Dose Linearization all Probes
  • Dead Time Compensation CPM
  • Auto LO Battery, HV Out of Range
  • Probe Saturation LED's
  • General Purpose 3.5" Meter that is compatible with most Johnson Probes. Ranges from micro R to 10R/HR
GSM-525 (CE)
  • 4 Range Dual-Probe Microprocessor Survey Meter
  • Auto Ranging Integrate & Peak Hold
  • CPM & Dose Probe 1 CPM DT
  • Compensated Probe 2
  • 500, 5,000, 50,000 & 500,000 CPM
  • Probe 1 Dose Ranges 25 Micro R/hr to 1 R/hr Depending on Probe
  • Dose Linearization
  • Dead Time Compensation CPM
  • Auto LO Battery, HV Out of Range
  • Probe Saturation LED's
  • Broad Capability Contamination & Dose Monitor Using GM Probe for Alpha-Beta Monitoring and Energy Compensated GM for Dose Monitoring up to 10 R/hr. Operates two probes with different dose and/or CPM calibrations and high voltage requirements. Optional time count operation and adjustable alarms.
RML-200
  • 120 VAC or Battery Powered Rate Meter w/Alarm
  • 4-Range Auto Ranging
  • Microprocessor Controlled
  • High Voltage 300-1500 vdc
  • Adjustable Alarm 5% - 95%
  • Dry Contact Alarm Output
  • Includes Internal Rechargable Battery & Charger
  • General Purpose Rate Meter that Supports Most Johnson Probes
RML-5
  • 3 Range
  • 120 VAC or Battery Powered Rate Meter w/Alarm
  • 4" Speaker
  • 2 Watts RMS-50,000 CPM
  • High Voltage 300-1500 vdc
  • Adjustable Alarm 5% - 95% Full Scale
  • Includes Internal Battery & Charger
  • General Purpose Rate Meter that Supports Most Johnson Probes