CDV-700 survey meter for low range radiation detection

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Lionel CDV-700 This is a fully functional low range (millirem per hour) gieger muller (GM) radiation survey instrument. As you can see from the picture it comes with a sidewall GM. The side wall GM has a sliding shield that twists to open and to close a 'window' that reveals the detector (a brass colored cylinder). As you can see from the picture, with the window 'open' the meter has a reading of almost 2mR/hr on contact with the check source on the side of the scaler bottom. This operability reading was taken with the open window of the GM probe centered over, and in contact with, the check source. The check source is permanently mounted on the scaler case.The meter pictured is the one you are purchasing. The pictures were made to show the interior of the unit and the face of the scaler.This survey meter requires two (2) D-cell batteries.The advantage of having a sidewall GM with a sliding shield is that you can determine whether or not you are in a plume (radioactive cloud) if there is a release of radioactive gasses: if the closed window reading and the open window reading is the same then you are not immersed in the plume. If the open window reading is higher than the closed window reading then you are in the plume. The increased reading is because beta radiation emitted by some of the radionuclides in the plume only travel a few feet and are attenuated by the probes sliding shield. Gamma radiation travels much further than beta radiation and is less attenuated by the probes sliding shield. Note: this meter is not designed to monitor alpha radiation and I doubt it's much good in a neutron field either. Both of those types of radiation require specialized equipment which is impractical for fallout shelter use. This instrument was designed and distributed by civil defense authorities for use during a nuclear accident or attack. As noted above it detects both beta and gamma radiation. This is a used instrument and is in very good shape. It may have some paint scrapes, rust spots, oxidized aluminum, or other marks from use. It comes with one pair of headphones (not pictured) that attach to the meter (the connection is under the yellow plastic cap affixed to the handle with a bead-chain). A printout of the manual obtained from online sources is also included.The nitty gritty details: Payment is expected by PayPal within five days after the auction ends or five days after I invoice you if you request an invoice. Typically I invoice within 3 days (excluding weekends) after the close of the auction if you have not paid immediately after the auction closes. E-mail me if you run into unexpected difficulties paying. Don't bid if you can't pay. Don't bid on multiple auctions unless you can pay for all of them in case you get lucky (or unlucky). I do follow up on non-paying bidders. Sorry, I can only accept Domestic Shipping to the 48 contiguous states is the actual shipping cost or $18, whichever is cheaper. Shipping to Alaska and Hawaii is $28 or the actual shipping cost, whichever is cheaper. If you are interested in possibly saving money on shipping, please request an invoice at the close of the auction. Shipping is via USPS, FedEx or UPS and is at the Buyers expense. I do not charge a packing charge. Buyers are provided with tracking numbers upon shipping through the eBay won/purchased list. International Shipping is via FedEx, UPS, or USPS and is at the Buyers expense. Shipping charges will be determined at the end of the auction and will be based upon actual costs to ship to the Buyer's shipping address. I do not charge a packing charge. The Buyer will be provided with the tracking number upon shipping. Note: I will have to remove the check source from the case bottom for all shipments with international delivery addresses . This will mar the case, but will not affect the ability of the meter to detect radiation. The Buyer is responsible for any VAT or import taxes in addition to actual shipping costs. These costs are considered ... read more

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