Promotional price valid on web orders only. Your contract pricing may differ. Interested in signing up for a dedicated account number?
Learn More

Thermo Scientific™ RadEye™ G20-10 and G20-ER10 X-Ray and Gamma Survey Meters

Protect nuclear medicine personnel and nuclear facility employees with gamma survey meters for continuous monitoring of external or ambient ionizing radiation fields.

Supplier:  Thermo Scientific™ 4250687

 View more versions of this product

Catalog No. 19-173-335

Add to Cart



Nuclear medicine personnel who work with medical isotopes or in facilities that use radiation need to monitor their risk of exposure at all times. Protect employees and meet occupational safety regulations with the Thermo Scientific™ RadEye G20-10 and G20-ER10 X-ray and Gamma Survey Meters. These lightweight, compact Geiger counters are ideal for ambient equivalent dose and dose rate measurement, with a flat energy response curve from 17keV to 1.3MeV according to ambient equivalent dose H*(10). The RadEye G20-ER10 model covers the whole dose rate range from background to 100 mSv/h.

RadEye G20-10 / G20-ER10 X-Ray and Gamma Survey Meters for ambient equivalent dose and dose rate measurement are the perfect Geiger counters for nuclear industry personnel as well as civil defence, fire brigades, and hospital and pharmaceutical industry employes who work with radiation-emitting equipment.

  • Fast response, even below 1 µSv/h.

  • Rugged, compact design with thick rubber protective cover.

  • Menu-driven user interface for low training cost and immediate familiarity.

  • Huge internal data memory for both scaler results and continuous data recording.

  • Bright backlit LCD display, offering plain text messages in multiple language choices.

  • Audible indication: single pulse or chirper mode proportional to count rate.

  • Earphone output for operation in loud environments.



0.01μSv/h to2 mSv/h
RadEye G20-10 X-Ray and Gamma Survey Meters, Upper dose rate limit: 2 mSv/h
Backlit LCD
Survey Meter
−20°C to +50°C
-4°F to 122°F
Pancake GM with multi-element filter
6.7 cm
Civil defense, fire brigades, hospitals, nuclear industry, and pharmaceutical industry
Sv/h; rem/h
2.64 in.
2 mSv/h (200 mrem/h)
2.44 in.
Designed to meet and exceed IEC 60846-1.
17 keV to 3 MeV( ± 30%); 17 keV to 3.0 MeV according to IEC 60846-1 (2009)
0.01 μSv/h to 2 mSv/h
5.12 in.
Approx. 4 cps per µSv/h
+/- 10% within the measurement range
0.3 kg
Gamma, X-Ray
62 mm
>500 hr.s on two AAA batteries
0.66 lb.
13 cm


Product Certifications


Provide Content Correction

We continue to work to improve your shopping experience and your feedback regarding this content is very important to us. Please use the form below to provide feedback related to the content on this product.

Product Title

By clicking Submit, you acknowledge that you may be contacted by Fisher Scientific in regards to the feedback you have provided in this form. We will not share your information for any other purposes. All contact information provided shall also be maintained in accordance with our Privacy Policy.

Cancel Submit