1x Ludlum Model 12 RateMeter, CALIBRATED, and GUARANTEED for 1 yr

This Listing Is For:
1x Calibrated Ludlum Model 12-14 Count Ratemeter (similar to Model 12)

These units have been professionally restored and returned to full Model 12 functionality after being Ludlum factory-modified for bench use with serial connections. They are fully tested, documented, and guaranteed.

🔧 Restoration Details

• Removed the Ludlum installed factory modifications for bench mount, external power with a serial data connection

• Converted back to standard Model 12 functionality

• All unused external openings sealed with high-solids industrial epoxy (1 in the battery compartment lid, 4 in the base under cork feet)

• Battery compartments and corrosion-free

• A few had failed lights and these were replaced with LED units. (Ask if you would like an LED unit)

• Fully tested and documented post repair

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✅ Features & Advantages

• Digital Calibration – Each meter is newly calibrated, with documentation included

• Ready to Use – Guaranteed 100% functional and fully tested before shipping

• Probe Compatibility – Configured for 900V Geiger probes (other voltages available by request)

• Superior to Model 3 – Built-in high voltage scale on meter fact and easily adjustable discriminator make this model far more versatile for swapping between probe styles (alpha, beta, gamma, scintillator, etc.)

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📋 Meter Face

• Standard count rate scale

• High voltage scale included for monitoring and resetting meter output

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🔬 Testing & Guarantee

• Every unit is fully tested and adjusted across all ranges

• Verified with a calibrated Ludlum Model 500 pulser

• Photos of your exact unit being tested will be provided prior to shipment (eBay allows photos 5 per email)

• 1-Year Guarantee – Covers full functionality and defects (excludes abuse, neglect, or mishandling)

• Repair services available at reasonable cost if needed outside warranty

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⚡ Key Notes

• Clean internals, bright corrosion-free battery contacts

• Calibrated to operation at 900V ±10% and 35mV (unless another setting is requested)

• Each analog range tested for pulse count accuracy

• Random probe clip included unless purchased with a specific probe

• Probes are sold separately – ask about discounts for complete sets

• One free cable included per meter when a probe is purchased together (ex: 1 meter + 2 probes = 1 cable)

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📸 Additional Information

• These are pre-owned, professionally restored instruments. Expect small scuffs, bumps, or light adhesive marks from past labels.

• Fully cleaned and tested – cosmetic wear only, no effect on performance.

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🚚 Shipping & Terms

• Listing is for one calibrated Ludlum Model 12-14 in tested working condition

• Batteries not included

• Discounts available for multiple purchases

• Signature may be required on delivery due to value

• Each unit photographed and documented before shipment

• International buyers – please contact us to confirm accurate shipping rates

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📩 Feel free to reach out with questions or for detailed photos of specific units before purchase!