Monitor 200 Geiger Counter

Supplier of Geiger counters for the detection of radioactivity, offering a selection of handheld and external probe models of radiation detectors, and guidance on how to select the right model of Geiger counter for your application. This site also provides educational resources on Geiger counter design and applications, as well as topics on radiation, including danger levels.
%26nbsp%3B%0D%0A%26nbsp%3B%0D%0A%26nbsp%3B%0D%0AThe%20Monitor%20200%20measures%20alpha%2C%20beta%2C%20gamma%2C%20and%20x-rays.%20Its%20digital%20display%20shows%20readings%20in%20your%20choice%20of%20CPM%2C%20CPS%2C%20%26mu%3BSv%2Fhr%2C%20mR%2Fhr%2C%20or%20in%20accumulated%20counts.%20It%20has%20a%20digital%20display%2C%20a%20red%20count%20light%2C%20and%20a%20beeper%20that%20sounds%20with%20each%20count%20detected.%20Other%20features%20include%20an%20adjustable%20timer%2C%20and%20selectable%20alert.%20With%20the%20free%20Observer%20USB%20Software%20Family%2C%20you%20can%20set%20computer%20alarms%2C%20calibrate%20your%20instrument%2C%20and%20download%20your%20collected%20data%20from%20the%20internal%20memory%20for%20easy%20reporting!%0D%0AFeatures%26nbsp%3B%0D%0ADetector%0D%0AHalogen-quenched%20GM%20tube%20with%20thin%20mica%20end%20window.%20Mica%20window%20density%201.5-2.0%20mg%2Fcm2.%20Effective%20window%20diameter%20is%20.360%20inch.%20Side%20wall%20is%20.012%20inch%20thick.%0D%0AOperating%20Range%0D%0AmR%2Fhr%20-%20.001%20(1%26micro%3BR)%20to%20200%20mR%2Fhr%20%26micro%3BSv%2Fhr%20-%20.01%20to%202000%20CPM%20-%200%20to%20235%2C400%20CPS%20-%200%20to%203923%20Total%20Counts%20-%201%20to%209%2C999%2C000%20counts%0D%0AAccuracy%0D%0ATypically%20%26plusmn%3B15%25%20from%20factory%2C%20%26plusmn%3B10%25%20(NIST)%0D%0AEnergy%20Sensitivity%0D%0A1070%20CPM%2FmR%2Fhr%20referenced%20to%20Cs137%20Detects%20alpha%20down%20to%202.5%20MeV%3B%20typical%20detection%20efficiency%20at%203.6%20MeV%20is%20greater%20than%2080%25.%20Detects%20beta%20at%2050%20keV%20with%20typical%2035%25%20detection%20efficiency.%20Detects%20beta%20at%20150%20keV%20with%20typical%2075%25%20detection%20efficiency.%20Detects%20gamma%20and%20x-rays%20down%20to%2010%20keV%20typical%20through%20the%20window%2C%2040%20keV%20minimum%20through%20the%20case.%0D%0AAnti-Saturation%0D%0AReadout%20will%20OVERRANGE%20in%20radiation%20fields%20as%20high%20as%20100%20times%20the%20maximum%20reading.%0D%0ASelectable%20Alert%20Set%20Range%0D%0AmR%2Fhr%20.001%20-%20100%20and%20CPM%201%20-%20350%2C000.%20Pulsating%20beeper%20sounds%20the%20alert.%20Adjustable%20alert%20levels%20are%20used%20for%20mR%2Fhr%20%2F%20CPM%2C%20and%20%26micro%3BSv%2Fhr%20%2F%20CPS.%2070db%20%40%201m.%20Alarm%20will%20sound%20when%20in%20Timer%20Mode%20when%20set%20alarm%20threshold%20is%20reached.%20%0D%0ADisplay%0D%0AGraphic%20LCD%20with%20Backlight.%0D%0ACount%20Light%0D%0ARed%20LED%20flashes%20with%20each%20count.%0D%0AAudio%20Indicator%0D%0A%26nbsp%3B%26nbsp%3B%26nbsp%3B%20Internally%20mounted%20beeper%20(can%20be%20switched%20off%20for%20silent%20operation)%20%0D%0AData%20Logging%26nbsp%3BCapacity%0D%0A%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%205%2C452%20data%20points%2C%20which%20at%201%20minute%20intervals%20as%20an%20example%2C%26nbsp%3Bequates%20to%203.7%20days%0D%0AOutputs%0D%0AUSB%20for%20use%20with%20Observer%20USB%20Software%20Family%0D%0ABluetooth%20for%20use%20with%20the%20Free%20Observer%20BLE%26nbsp%3BApp%20for%20Android.%0D%0APower%20Requirements%0D%0ATwo%20AA%20alkaline%20batteries%20(included).%20Approx.%20800%20hrs%20%40%20background.%0D%0ASize%0D%0A140%20X%2068%20X%2033%20mm%20(5.5%20X%202.7%20X%201.3%20in.)%0D%0AWeight%0D%0A6.4%20oz%20(0.4%20lbs.)%0D%0AIncludes%0D%0ACarrying%20Case%2C%20Xtreme%20Boot%2C%20Lanyard%2C%20Stand%2C%20Batteries%2C%20Mini-USB%20Cable%2C%20Observer%20USB%20Software%20Download%2C%20Certificate%20of%20Conformance%0D%0AOptions%0D%0ANIST%20Calibration%0D%0ALimited%20Warranty%0D%0A1%20year%20limited%20warranty%26nbsp%3B%26nbsp%3B%0D%0AThe%26nbsp%3BMonitor%20200%20typically%20ships%20within%201%20business%20day.%0D%0AMonitor%20200%20Operating%20Manual

Mazur Instruments PRM-8000 Handheld Geiger Counter and Nuclear Radiation Monitor, 0.001 to 200 mR/hr

Geiger Counter #8 by Public Health England

S. E. International Monitor 4 Geiger Counter w/Case – Bariatricando

Quantum Professional Geiger Counter Radiation Detector Dosimeter

Radiation Safety - Survey Meters - Geiger Counter - NDS Gamma / X-Ray Survey Meters - NDS ND-200P 4 Low Range Survey Meter - NDT Supply.com

S.E. International Radiation MONITOR 4 dosimeter Analog Geiger Counter w/C t202

On Digital Geiger Counters - A quick comparison between GQ GMC-600+ and Radiation Alert Ranger. What is good and what is not so hot - details in the comments. : r/Radioactive_Rocks

Radiation Alert® Area Monitor 200

Mini monitor with Geiger-Muller tube, c1990