Radiation Alert® Area Monitor

Radiation_Alert_Area_Monitor SEI

logo with rad-alert


The Radiation Alert® Area Monitor is one of the most user friendly, all inclusive, state of the art radiation area monitors available. The easy to use interface is an intelligent resistive touch screen display featuring a large five digit LED readout.

It comes with either an internal or external detector and free software for monitoring every Radiation Alert® Area Monitor on your network. Includes user selectable warning indicators for low and high radiation alarm levels, low battery, detector failure, and email and text alerts. All the settings are stored internally, even when power is disconnected.

All units are electronically calibrated at the factory. NIST source calibrations available upon request.

Detector Options

Internally Mounted Energy Compensated GM Detector
Externally Mounted Energy Compensated GM Detector
1X1 or 2X2 Externally Mounted Scintillation Detector

Range Options

• AM-7149: 0.2 – 16,000 mR/hr (2.0 – 160,000 μSv/hr) Using an Internally Mounted LND 7149 Energy Compensated
GM Detector. External mounting also available
• AM-7128: 15μR/hr – 200 mR/hr (0.2 – 2000 μSv/hr) Using an Internally Mounted LND 7128 Energy Compensated
GM Detector. External mounting also available
• AM-71313: 0.1 to 1500 mR/hr (0.5 – 15,000 μSv/hr) Using an Internally Mounted LND 71313 Energy
Compensated GM Detector. External mounting also available
• AM-1X1NAI: 1 μR/hr to 10 mR/hr (0 μSv/hr – 0.1 mSv/hr) Using an Externally Mounted 1X1 NaI(Tl) Scintillation
• AM-2X2NaI: 0.1 μR/hr to 2 mR/hr (0 – 20 μSv/hr) Using an Externally Mounted 2X2 Nal(Tl) Scintillation Probe


GM Probes – 100ft, Scintillation Probes – 50ft

Touch Screen Display

4.3 inch TFT 480×272 touch screen display with user friendly Programmable Units of Measurement and Audio and Visual Alarms. 5-digit LED display with 2.5 cm (1 in.) character height. 65K true colors capable of displaying full color images, animations, icons, and video clips

Display Units

Can display in µR/hr, mR/hr, µSv/hr, mSv/hr, cpm, Kcpm, cps, Kcps.


NIST Calibrated readings within 10% of true value with detector connected


Varies automatically from 20 seconds to 2 seconds


Ultra-Bright Strobe and Audible Alarm
Can trigger up to three relays with DB-9 serial connection
USB VCP for computer data logging, can also be used to control the unit with use of remote software for alarm indication and acknowledgment (Silence by remote)


10 Base-T connection for use with remote software for alarm indication and acknowledgment (Silence by remote)

Calibration Controls

Functions accessible through touch screen push button under calibration cover enables secure access to changing settings

High Voltage

User adjustable from 200 to 1200 volts

Dead Time

User adjustable to compensate for dead time of the detector and electronics


12 VDC wall mount adapter with four sets of international adapters for almost any style wall receptacle

Battery Life

Typically 7.5 hours in non-alarm condition; 6 hours in alarm condition

Battery Charger

Battery is continuously trickle charged when the instrument is connected to line power and turned on


Easy mount steel enclosure

Temperature Range

10 to 60 °C (14 to 140 °F)

Size and Weight

16.2 x 26.6 x 5.3 cm (6.4 x 10.5 x 2.1 in.) – 84.8 oz (5.3 lbs) without probe and cable


Management software for use with networked area monitors, Base Unit, Power Supply, Software Download, Mounting Clips (External Versions Only), C to C Cable (External Versions Only).


External Strobe and Horn, External Detector, NIST Calibration

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