Products
Handhelds
GM Based Instuments
Radiation Alert® Ranger
Radiation Alert® Ranger EXP
Radiation Alert® Frisker
Monitor 200
Monitor 4
Energy Compensates GM Based Instruments
Radiation Alert Monitor 1000EC
Monitor 4EC
Monitor MC1K
Scintillation Based Instruments
Radiation Alert® GammaView
NuCoMo 100
CoMo-170/-300
Dosimetry
Pen Dosimeters
Pen Dosimeter Charger
Radiation Alert® Sentry EC
Area Monitors
Area Monitor 1×1
Area Monitor 2×2
Area Monitor 7128
Area Monitor 71313
Area Monitor 7149
Area Monitor PA
Radiation Alert® Software
Radiation Alert® Observer USB Software
Radiation Alert® SentryCom Software
Radiation Alert® Area Monitor Server Software
URSA-II MCA Software – Multi-Channel Spectrum Radiation Analyzer Software
Spectrum Analyzers
URSA-II – Universal Radiation Spectrum Analyzer
Portal Monitors
NuCLEARANCE Portal Monitor
Accessories
Replacement Probes
Remote Alarm for Area Monitor
Radiation Alert® WipeTest Plates
Test Swipes
Radiation Alert® Rubber Boot
Radiation Alert® Carrying Cases
Protective Water-Resistant case
Tactical Carry Case
Radiation Alert® Detector Stands
Dosi-Lite Pen Dosimeter Light
Check Source
Blue Tube Cap for Ranger
Red Tube Cap for Ranger EXP
About
Support
FAQs
Operation Manuals
Quick Start Videos
Radiation Basics
Service & Repair
Contact Us
Service & Calibration
Industries & Applications
Industries
Government & Security
Healthcare
Industry & Manufacturing
Laboratories & Education
Nuclear & Health Physics
Public Safety
Applications
Antique and Mineral Screening
Chemical
Leak Testing and X-ray Screening
NORM
Scrap Metal Screening
Surface Contamination
WIpe Testing
Worldwide Distributors
CONTACT
News
Can the Monitor 4 operate silently?
May 06 2026
Yes. The instrument includes a
silent operation option
when audible alerts are not desired.
