Presidium duo tester - pdt s7 item detailsretractable 0.6mm thermoelectric probe tip for the smallest of gemsmetal alert buzzer to ensure consistent contact easy-to-read and color coded analog displaybuilt-in diamond and simulant test discs for your referencebuilt-in simulant holder for calibration of reflectivity meter (stones not included, see other listing for pdt with stones)no waiting time between tests! The presidium duo tester is a light and portable instrument that quickly identifies diamonds from most colored gemstones, including moissanite, based on their thermal conductivity and reflective indexes. Featuring a retractable 0.6mm probe tip that ensures consistent pressure, you can test diamonds, moissanite, and colored and coated gemstones as small as 0.02ct with ease and reliability. This presidium instrument will identify diamond, moissanite, and most colored gemstones, both polished and unpolished, quickly and reliably. The presidium pdt-s7 is simple, easy to use, and portable for your convenience. Works perfectly with the included ac adaptor or 5x aa batteries!the presidium pdt will test a total of 16 different colored gemstones, diamond, and moissanite sapphire vs. Tanzanitejadeite vs. Chrysoprasesapphire vs. Iolitejadeite vs. Aventurine quartzsapphire vs. Spinelruby vs. Spinelsapphire vs. Citrineruby vs. Garnetsapphire vs. Topaztopaz vs. Aquamarinesapphire vs. Tourmalinetopaz vs. Amethystemerald vs. Jadeitetopaz vs. Citrineemerald vs. Garnetspinel vs. Garnetjadeite vs. Garnetgemstones vs. Glassincluded:presidium duo tester pdt-s7probe pen (replacements available)ac adaptor (us and european style plugs)carrying casewarranty card & user handbooksimulant reflectivity reference chartfree 5x led illuminated hand-held magnifier + 3x aa batteries payment at this time, we are only able to accept the following forms of payment: paypal credit/debit cards via paypal we are sorry for any inconvenience this may cause shipping continental us buyers: all orders placed before 3pm on a business day (monday - friday excluding holidays) will ship same or next day. Any order placed after 3pm on friday will be processed the following monday. We promise a maximum handling time of 2 days for any order. International buyers: please inquire for additional shipping costs. Any extra shipping fees must be covered by the buyer. Any customs fees imbued by your country are the sole responsibility of the buyerreturns general return policy if you are not satisfied with item(s) purchased from us, you may return your item(s) in original condition for a refund within 14 days of reciept after contacting us. No returns will be accepted for any reason after the 14-day period.items returned in unused, original condition, you will receive a 100% refund. Returned merchandise must include all packaging, along with included contents and accessories, bonus items, documents or paperwork, and proof of purchase in order for the full refund to be honored. Please read the entire product description. Items that do not fall within the manufacturer's return or exchange policies cannot be accepted for returns or refunds. Customer is responsible for shipping costs on any returned merchandise. There will be no refunds or exchanges for used gold testers or any testing liquids (gold testing liquid, acids, r.i. Liquid, gel refills). International buyers: please remember, that return shipping fees are buyer's responsibility. Important: please be aware that we are not responsible for any item that we do not receive or returned merchandise that is not accordance with these terms. Damaged/defective merchandise: if you receive a damaged, defective, or incorrect item, contact us within 2 days. If you receive merchandise with extensive damage to its packaging upon arrival, please refuse the order and contact us immediately. In such an event, we recommend that you contact the shipper immediately to report the damaged goods. Warranty: all warranties are offered solely by the manufacturer. If you want to return an item more than 14 days after you received it from us, you will have need to contact the manufacturer, which we can assist you with.