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  • Email: info@cem-instruments.in
  • Phone: +91-33-22151376 / 22159759

Radiation Meter

Radiation Scanner / Meter


The radiation detector DT-9501 was developed to detect α-, β-, γ- and x- radiation. The radiation meter DT-9501 provides many features including a large, high-resolution backlit LCD display with annunciators. The radiation detector DT-9501 has internal data storage for up to 2000 data sets, which are saved either manually or automatically. Furthermore the radiation detector DT-9501 is equipped with a Bluetooth interface to transfer the measured data in real-time to a computer. With the software, that is included with the product, the data can then be further processed and reviewed. The radiation detector DT-9501 stands out with its high accuracy and practical design. The radiation detector can be applied in the pharmaceutical industry, laboratories, power plants, quarries, the emergency services, metal industries, petroleum reservoirs, environmental protection etc.

  • Uses of imported Geiger counter sensor
  • Have ray measurement function selector switch
  • High-definition LCD liquid crystal display has the functions of backlight, measuring dynamic, ray category, reading, real-time, battery, measurement units symbols and simulation diagram instructions.
  • Show the average time adjustable
  • Can be used for radiometer value accumulated and measuring unit conversion
  • Has alarm, real-time stamp readings and Bluetooth data transmission functions
  • Have pulse counting function
  • Automatic selection of measurement range
  • Miniaturization impact resistant design, easy to carry
  • Meets ergonomic principle, comfortable hand feel
  • With Bluetooth communication data transmission function and powerful computer data analysis software
  • Large capacity memory, can put 4000 set of data storage directly inside the instrument, then transfer it to the computer. No need to manually record and support power down to keep stored data after 1 minute function, users don’t have to worry about losing data while replacing new batteries.


Ray types α, ß, γ and X ray
Range (automatic selection range) Radiation dose rate : 0.01µSv/h - 1000µSv/h
Pulse dose rate : 0-4000cpm, 0-4000cps
Radiation dose accumulation total value : 0.001µSv – 9999Sv
Pulse dose accumulation total value : 0-9999
sensibility When in environment background of energy is 1 Sv/h Cobalt - 60 ray, it is 108 pulse or 1000 CPM/mR/hr α- from 4.0  million volt MV   ß-   from 0.2   million volt MV γ-  from 0.02   million volt MV X – from 0.02  million volt MV
Basic accuracy <10%( less than 500µSv/h),
<20%( less than 600µSv/h )
Ray selection switch combination selection to α, ß, γ, X
Sensor  Halogen fill detector (G.M Geiger counter tube)
Output port Bluetooth wireless data transmission ( Space transmission distance 10m )
Mean time  Manual or automatic adjustable between 2 to 12 seconds
Show   Big screen with 4 digit LCD, with bar graph display, following data can be shown: Radiation dose rate, pulse dose rate, radiation dose accumulative value, pulse dose accumulative value, time, date, alarm value, max radiation dose rate, radiation type, measuring dynamic icon, battery power indicator, etc..
Warming function Alarm value can be set freely,  the default Settings is 5 µ Sv/hr
Normal natural environment radiation value Less than 0 - 0.2 uSv / h
Memory function  Automatic storage 4000 set of data, and record a set of data per minute(including real-time date, time, measuring value and measurement unit)
Bluetooth transmission data Every second transmission 1 set of data (including real-time date, time, measuring value and measurement unit)
Software  Data real-time far transfer display, analysis and record
Detector working temperature 0 ° to 50°C
Weight   206 g
Dimension  Length 200cm, width 70mm, high 45mm 
Power source   3.6V High-energy lithium-ion batteries 
Quality certificate  European CE, US FCC-15 
Warranty  Main engine 12 months 
Note: Sievert (mark is Sv, unit, 1Sv=100 rem) rem (roentgen equivalent man)
µSv/h (unit of ray radiation dose rate)
1 SV=100Rem      1 rem=1cSv=10mSv
1 uR/h=10uSv/h    1mR/h =10mSv/h
CPS : pulse counts per second (In the pulse rate model, pulse has constantly been measured by counter tube  and translated into pulse rate)
CPM : pulse counts per minute(In the pulse rate model, pulse has constantly been measured by counter tube and translated into pulse rate)
  • Instruction Manual
  • Software
  • Carrying Case
  • Test Report