Guaranteed & NIST 2026 Calibrated! Ludlum Model 2241 + 44-10 Probe 1yr Warranty

*Fully calibrated units are available for rental or purchase, with various meter and probe combinations. Contact us for specific combinations you may require or be interested in.*

These meters have been set up and calibrated to a NIST traceable standard by an independent 3rd party!

Guaranteed! 2026 Calibrated! 1x Ludlum Model 2241 + 1x 44-10 2" x 2" NaI Scintillator Probe

Unit has backlit display and automatic alarms that can be adjusted to various levels.

This unit is guaranteed to be fully functional and ready to be used without issues (including batteries)! 

I have several of these and only set up one for the pictures of this listing. The pictures are only representative of the unit you will receive. Several are on hand and you will receive one of similar style with current calibration!

All of the units are identical. These units are used and may show signs of normal wear and tear. They are 100% functional and guaranteed.They may have provisions for a check source holder on the side of the case. If there are holes in the case (not the threaded mounts as sometimes used), they will have been epoxy filled making the case sealed again. If it had the threaded inserts, these leave the case sealed when installed.

The unit you will receive has been calibrated in 2026 and the paperwork will reflect this!

This was FULLY serviced and Calibrated in 2026!

EXTREMELY HIGH SENSITIVITY Gamma radioactive material detector. 

All related paperwork is included as shown in the pictures.

Gamma Scintillator Radiation Survey Meter "Geiger Counter"

Please look at the pictures closely and search the part numbers online for further specifications and details. 

For the pictures, the probe was used to measure the output of Cs Check source. It had no trouble detecting the radiation from this item. (This is not included)

These are top quality items that have been taken care of!

SEE PICTURES!

Please ask if you have any questions! 

Item will ship the same day payment clears!

If buying outside the 48 states, please contact me before buying to arrange shipping!