{"product_id":"nist-2025-calibrated-ludlum-model-3-44-6-probe-guaranteed-for-1-year","title":"NIST 2025 Calibrated! Ludlum Model 3 + 44-6 Probe Guaranteed for 1 year!","description":"\u003cdiv class=\"item-specifics\"\u003e\u003cdiv class=\"specs-grid\"\u003e\n\u003cdiv class=\"spec-pair\"\u003e\n\u003cdiv class=\"spec-name\"\u003eBrand\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eLudlum\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-pair\"\u003e\n\u003cdiv class=\"spec-name\"\u003eUnit Type\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eUnit\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-pair\"\u003e\n\u003cdiv class=\"spec-name\"\u003eCustom Bundle\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eNo\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-pair\"\u003e\n\u003cdiv class=\"spec-name\"\u003eModel\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eMODEL 3\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-pair\"\u003e\n\u003cdiv class=\"spec-name\"\u003eMPN\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eModel 3\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-pair\"\u003e\n\u003cdiv class=\"spec-name\"\u003eUnit Quantity\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e1\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-pair\"\u003e\n\u003cdiv class=\"spec-name\"\u003eModified Item\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eNo\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-pair\"\u003e\n\u003cdiv class=\"spec-name\"\u003eCountry of Origin\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eUnited States\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-pair\"\u003e\n\u003cdiv class=\"spec-name\"\u003eRadiation Detector Type\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eGeiger Counter\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003cdiv class=\"item-description\"\u003e\u003cdiv class=\"description-text\"\u003e\n\u003cp data-start=\"469\" data-end=\"599\"\u003e\u003cstrong data-start=\"469\" data-end=\"599\"\u003eCalibrated meter and probe combinations are available for purchase or rental. Contact us if you need a specific configuration.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"601\" data-end=\"1092\"\u003eThis Ludlum Model 3 paired with a Ludlum 44-6 gamma probe has been fully serviced and calibrated using a Ludlum Model 500 digital pulse generator with a current NIST traceable factory calibration. The 44-6 is an energy-compensated GM detector designed for gamma count-rate measurements. The meter features a CPM-only scale face, and its needle response and output were verified following Ludlum calibration procedures. Calibration paperwork documenting the December 2025 service is included.\u003c\/p\u003e\n\u003cp data-start=\"1094\" data-end=\"1179\"\u003e\u003cstrong data-start=\"1094\" data-end=\"1124\"\u003eCertified 2025 Calibration\u003c\/strong\u003e\u003cbr data-start=\"1124\" data-end=\"1127\"\u003e\nLudlum Model 3 Survey Meter with 44-6 Gamma Detector\u003c\/p\u003e\n\u003cp data-start=\"1181\" data-end=\"1338\"\u003eThis unit is fully functional, tested, and ready for immediate use. Batteries are included.\u003cbr data-start=\"1272\" data-end=\"1275\"\u003e\nYou will receive the exact instrument shown in the photographs.\u003c\/p\u003e\n\u003cp data-start=\"1340\" data-end=\"1549\"\u003eThe meter is used and may show normal cosmetic wear from handling, but it has been inspected, serviced, and adjusted to ensure proper performance. All calibration documentation shown in the photos is included.\u003c\/p\u003e\n\u003cp data-start=\"1551\" data-end=\"1663\"\u003eCPM-only display for gamma count-rate measurements\u003cbr data-start=\"1601\" data-end=\"1604\"\u003e\nLudlum 44-6 energy-compensated GM probe for gamma detection\u003c\/p\u003e\n\u003cp data-start=\"1665\" data-end=\"1785\"\u003eThe photos show the probe responding to a check source to demonstrate proper function. The check source is not included.\u003c\/p\u003e\n\u003cp data-start=\"1787\" data-end=\"1896\"\u003eThese are high-quality professional instruments that have been maintained and tested to a very high standard.\u003c\/p\u003e\n\u003cp data-start=\"1898\" data-end=\"2006\"\u003ePlease review all photos and feel free to search the part numbers for additional details and specifications.\u003c\/p\u003e\n\u003cp data-start=\"2008\" data-end=\"2077\"\u003eIf you have any questions, feel free to reach out. I respond quickly.\u003c\/p\u003e\n\u003cp data-start=\"2079\" data-end=\"2118\"\u003eItem ships the same day payment clears.\u003c\/p\u003e\n\u003cp data-start=\"321\" data-end=\"490\"\u003e\n\n\n\n\n\n\n\n\n\n\n\u003c\/p\u003e\n\u003cp data-start=\"2120\" data-end=\"2214\"\u003eIf purchasing from outside the 48 states, please contact me before buying to arrange shipping.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003cstyle\u003e\n  .item-specifics, .item-description {font-family: Arial, sans-serif; font-size: 14px; margin-top: 16px;}\n  .title {font-size: 16px; font-weight: bold; margin: 0 0 8px 0;}\n  .specs-grid {display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px 24px;}\n  .spec-pair {display: grid; grid-template-columns: 120px 1fr; gap: 8px;}\n  .spec-name {font-weight: bold; color: #111;}\n  .spec-value {color: #333;}\n  .description-text {margin-top: 8px; line-height: 1.4; color: #333;}\n\u003c\/style\u003e\n","brand":"Tech By MBF","offers":[{"title":"Default Title","offer_id":50664258142455,"sku":"v1|277563652754|0","price":625.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0925\/3752\/0375\/files\/s-l1600_8a071218-b961-43c4-9b87-abd42d1e092d.jpg?v=1781046404","url":"https:\/\/techbymbf.com\/products\/nist-2025-calibrated-ludlum-model-3-44-6-probe-guaranteed-for-1-year","provider":"Tech By MBF","version":"1.0","type":"link"}