Check the listing for details. Bicron NaI 4X4 detector with MHV connection. Condition: Used. Listed at 1300.00 USD. Bicron NaI 4X4 detector with MHV connectionThese are 4X4 Sodium Iodide (NaI::Tl) detectors removed from a conveyor system designed to detect very low levels of gamma radiation. These detectors are much more sensitive than the standard NaI detector used to measure radiation background (typically a 2X2). These detectors have good plateau's and work very well. This is a very sensitive detector at a great price. It will very easily see variation in natural background, let alone any radiological impact at your site. When Fukushima happened, we were inundated with requests for survey meters. We talked a whole lot of people out of buying meters and the usual equipment is not sensitive enough to measure background fluctuations necessary to determine if crops or food is contaminated. This is the sort of thing that you will need to use for that! These detectors are great for portal monitors, or performing walkover surveys of areas to look for elevated radioactivity. You would be surprised how much radiation can be detected almost anywhere. These detectors will see it if it is there. We have meters you can use do operate these detectors. They have all been tested and have great response with good plateau's. This is a great deal on a very large NaI detector. Bigger is better when it comes to these. See the illustration of a walkover survey we did of a pasture with a 2X2 and our Counts.Pro device. These detectors are much more sensitive than the one that was used to make that survey map. Counts.Pro is sold here on Ebay or online and lets you record your meter reading using a smart device. Our instruments are always fully warrantee'd so you never have to worry. We have been in the nuclear industry for 17 years and sell worldwide to hobbyists and nuclear professionals. CHP Consultants dba CHP Surplus est. 2002 chpconsultants.com We offer 30-day return policy on our inventory. If you are not satisfied with an item, please contact us so we can work out a solution to your satisfaction. Due to the variety of the items, we sell through our store, we are only able to thoroughly test our items labeled as “Radiation Detectors”. We are happy to answer further questions on any item if we can. Please do not hesitate to message us if more information is needed. We are easy to reach during regular business hours. Monday through Friday 9-3.We take pain staking efforts to pack all items quickly and properly for safe shipping.We can consolidate shipping. If you place more than one order and wish to consolidate, simply message us prior to shipping and we can reduce shipping costs. Local pick up is available Oak Ridge, TN. Internal Use Barcode: MultipleLocation: 8E We stand behind our eBay store. Check out CHPSurplus here for various miscellaneous equipment at a low price.