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The Rad Alert 200 is the next generation area monitor that includes a built in GM Gamma detector for monitoring rooms where radio nuclides may be present or where devices producing radiation may be located. This unit includes separate panels to display exposure rate (mR/hr), total integrated exposure (mR) and total exposure time on a remote alarm that is tethered to the primary alarm. The primary alarm includes a digital timer that counts time when radiation is present and a room door is open. This feature can be useful for routing patient safety QA or as a stopwatch in the event of an emergency. The monitor has a backup powered by either rechargeable NiMH or alkaline AA batteries. The rechargeable batteries are maintained on a trickle charge. The detector unit has an adjustable trigger level with the level displayed on a digital display. The slave unit contains an audible buzzer with an adjustable volume control that can be turned on or off with a switch mounted on the side of the unit. A separate dose trigger is also included that can be set by the user. When the dose exceeds this level a separate yellow light turns on.

Includes a 30 meter cable for easy connection between monitor and remote alarm.

RadAlert 200 detector

Indicated use

  Radiation area monitoring


Internal GM  detector range

   0.5 mR/hr to 30,000 mR/hr  (utilizes 2 separate GM Tubes)



  4 digit LCD display with 0.4 in (1 cm) character height Emergency counter 8 digit LED display with 0.8 in character height


Display range

  000.0 to 200


Display units




  Reading within ± 10% of true value with detector connected



  Typically 1 second from onset of radiation



(green light) Indicates the instrument is functioning properly & power is on



  Indicated by a flashing red light and audible buzzer



  indicated by red LED 8 AA NiMH on trickle charge in remote station


Calibration controls

  Accessible from potentiometer on side of unit


Dead time

  < 10% at max exposure rate


Data output

(current sink), and direct connection to battery and ground


Power requirements

  12 VDC universal adaptor may be plugged into either main detector unit or remote alarm


Battery life

 7-9 hours


Battery charger

  Battery is continuously trickle charged when instrument is connected to line power



  ABS Plastic Enclosure


Temperature range

  0º to 130ºF (- 18º to 54ºC). 



  4.4 (w) x 2.4 (d) x 8.5 in (h) (11.2 x 6.1 x 21.6 cm)



  6.5 lb (2.3 kg)




Remote Station

Indicated use

  Remote display for RadAlert 100 & 200



  (green light) Indicates the instrument is functioning properly & Power is on



(flashing LED) Indicates the radiation level exceeds the alarm point, flashing yellow LED indicates exposure rate has exceeded the high alarm level. 


high alarm


Exposure Rate        

Integrated Exposure

Detector fail

  Indicated by red LED



 Piezo Buzzer type with ON/OFF switch and adjustable volume


Power requirements

  12 VDC universal adaptor 



  ABS Plastic Enclosure


Temperature range

  0º to 130ºF (- 18º to 54ºC). 



  9.5 (w) x 2.5 (d) x 6 in (h) (22.9 x 6.4 x 15.2 cm)