Monitor 200

The Monitor 200 measures alpha, beta, gamma, and x-rays. Its digital display shows readings in your choice of CPM, CPS, μSv/hr, mR/hr, or in accumulated counts. It has a digital, easy to read backlit display, a red count light, and a beeper that sounds with each count detected. This radiation detector device also includes an adjustable timer and a loud, customizable alert.

Free Observer USB Software
Free Observer BLE Software For Use With The
Optional Bluetooth Module

Internal memory and the free Observer USB Software (Windows® only) allow you to download your data, and set computer alarms. With the optional Blue Tooth module you can download Free Radiation Alert® Observer BLE app from the Google App Store, where you can display the readings from your detector on your android device, label sample readings and descriptions, take timed counts, append GPS data and send your saved survey file. Alarms set on the instrument will also activate on your android device.

Applications & Uses: Surveying for NORM (Naturally Occurring Radioactive Material) contamination, Gross wipe counting, Contamination surveys of packages, equipment, people, etc., Regulatory inspections, Scrap Metal Screening, Low energy radionuclide detection

 Applications & Uses: Checking accelerator & x-ray shielding for leakage, industrial gauges containing Cesium-137, Locating Sources, Personal protection, General surveying

Helpful Videos
Monitor 200 Taking a Timed Count    Monitor 200 Setting The Alarm  
Monitor 200 Backlight                         Monitor 200 Silent Operation

Digital Radiation Detector Comparison | Contact For Pricing and Availability

Specifications

Detector

    

Halogen-quenched GM tube with thin mica end window. Mica window density 1.5-2.0 mg/cm2. Effective window diameter is .360 inch. Side wall is .012 inch thick.

Operating Range mR/hr – .001 (1µR) to 200 mR/hr µSv/hr – .01 to 2000 CPM – 0 to 235,400 CPS – 0 to 3923 Total Counts – 1 to 9,999,000 counts

Energy Sensitivity

1070 CPM/mR/hr referenced to Cs137
Detects alpha down to 2.5 MeV; typical detection efficiency at 3.6 MeV is greater than 80%.
Detects beta at 50 keV with typical 35% detection efficiency.
Detects beta at 150 keV with typical 75% detection efficiency.
Detects gamma and x-rays down to 10 keV typical through the window, 40 keV minimum through the case.
(Ref to Cs137)

Accuracy of Radiation Detector Device

Referenced to Cs137
Typically ±15% from factory, ±10% with NIST Source Calibration NIST Calibration Additional

Anti-Saturation

Readout will OVERRANGE in radiation fields as high as 100 times the maximum reading.

Included with Monitor 200

Carrying Case	Stand
Observer BLE Software for Android	Observer USB Software
Extreme Boot

 

 

Selectable Alert Set Range

mR/hr .001 – 100 and CPM 1 – 350,000. Pulsating beeper sounds the alert. Adjustable alert levels are used for mR/hr / CPM, and µSv/hr / CPS. 70db @ 1m. Alarm will sound when in Timer Mode when set alarm threshold is reached.

Display

Graphic LCD with Backlight.

Outputs

USB for use with Free Observer USB Software for PCs
Bluetooth Option Additoinal: Wirelessly connects the instrument with an Android mobile device for use with Free Observer BLE App

Count Light

Red LED flashes with each count.

Audio Indicator

Sounds with each count (can be switched off for silent operation)

Power Requirements

USB Power or Two (2) AA alkaline batteries (included). Approx. 800 hrs @ background.

Temperature Range

-10° to +50°C (14° to 122°F)

Humidity

10% to 70% Non-Condensing.

Size

140 X 68 X 33 mm (5.5 X 2.7 X 1.3 in.)

Weight

181 g (0.4 lbs.)

Includes

Carrying Case, Xtreme Boot, Lanyard, Stand, Batteries, Mini-USB Cable, Observer USB Software Download, Observer BLE App Certificate of Conformance
Bluetooth module available for use with Observer BLE APP and Rad Responder

Options

Water Resistant Case , NIST Calibration

Limited Warranty

1 year limited warranty

 

Options for Monitor 200

Water Resistant Case	Radiation Response Kit