µSv Scale!! Guaranteed & 2026 Calibrated! Ludlum Model 3 + 44-9 Probe +Case

*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.*

We have multiple units! These meters have been set up and calibrated with the µSv scale!

Guaranteed! 2026 Calibrated! Ludlum Model 3 + 44-9 Geiger Probe With Hard Case

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

This unit will have a 1yr warranty from date of sale. It will be be guaranteed to work as expected. Abuse and mishandling will not be covered. Batteries are considered consumables and are not covered by the guarntee. 

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. I do not have source compartments or the sources for these.

The unit you will receive has been calibrated in 2025 and the paperwork will reflect this!

This was FULLY serviced and Calibrated in 2025!

Alpha, Beta, and Gamma radioactive material detector. 

All related paperwork is included as shown in the pictures.

Radiation Survey Meter "Geiger Counter"

Alpha - Beta - Gamma Detector probe.

A custom fit hard case is included. 

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 some thoriated tungsten welding electrodes. It had no trouble detecting the radiation from these items. (These are 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!