Ludlum Model 19 NaI Micro R Survey Meter 2026 Lab Calibrated 1 Yr Guarantee

Ludlum Model 19 NaI Micro R Survey Meter
2026 Third Party Laboratory Calibrated • Guaranteed Functional • Hard Case Included

Fully calibrated units are available for rental or purchase in a variety of meter and probe combinations. Contact us for specific configurations.

This listing is for one complete Ludlum Model 19 with current 2026 third party laboratory calibration, calibration paperwork, and a fitted hard case.

Several units are available. Quantity pricing may be available for multi-unit purchases.

The Ludlum Model 19 is a well regarded gamma survey instrument with an internal NaI scintillation detector, known for its sensitivity, fast response, and practical field use. These remain a solid choice for gamma survey work and general radiation detection applications.

Each unit in this group has been serviced, verified functional, and is ready for use. The meter received will include batteries and will be ready to go to work upon arrival.

A key point with these units is that the 2026 calibration was performed by an independent third party calibration laboratory. This is not a simple bench check or basic operational review. These Model 19 instruments were sent out specifically for professional lab calibration so they would include current documentation from a qualified outside source. That provides an added level of verification and gives buyers confidence that the instrument’s performance has been confirmed by an independent laboratory.

These units are also backed by a 1 year functional warranty. The warranty covers normal operation and guarantees that the instrument will power on and function properly for one year from the date of delivery. If a covered issue arises during that period, the unit may be returned for repair or replacement at no charge. This warranty does not cover abuse, neglect, mishandling, impact damage, or environmental damage such as temperature shock.

Please note: the photos shown are representative examples from current inventory. The exact unit received may vary slightly in cosmetic appearance, serial number, labeling, case style, or other minor external details. All units are the same general model and configuration and include current 2026 third party laboratory calibration documentation. If photos of the exact unit to be shipped are needed, please ask before purchase.

Included with this listing:

• 1 Ludlum Model 19 NaI Micro R Survey Meter
• Current 2026 third party laboratory calibration
• Calibration paperwork
• Fitted hard case
• Batteries

The radioactive material shown in the photos is not included.

For reference only, the unit pictured was used to demonstrate response to thoriated tungsten electrodes. Those items are not included in the sale.

These are not untested surplus units pulled from storage. They are documented, professionally calibrated, and ready for service.

Please contact us with any questions.

Ships the same day payment clears.

For buyers outside the lower 48 states, please contact us before purchase to arrange shipping.