Check the listing for details. Black White Transmittance Densitometer Transmission Density Meter Gauge 4.5D. Condition: New. Listed at 713.00 USD. Black White Transmittance Densitometer Transmission Density Meter Gauge 4.5D Introduction: This portable black and white transmission density meter can measure up to 4.5DThe transmission density of is also of reference value for those greater than 4.5D.When the measured value is greater than 4.8D, the instrument displays 8.88, indicating that the maximum range has been exceeded.This portable black and white transmission densitometer is an instrument for analyzing the quality of X-ray films in pressure vessels, ship hulls, chemicals, bridges, hospitals, and other fields.Feature:These are two portable black and white transmission density meters equipped with imported photoelectric sensors.This density meter is equipped with a large capacity Li ion battery inside. Fully charged, it can work continuously for more than 4 hours when the viewing area light source is turned on, and for more than 24 hours when the viewing area light source is turned off.This densitometer has the characteristics of small size, light weight, simple operation, convenient carrying, high measurement accuracy, and good long-term stability.This densimeter can measure both density value and density difference.This densitometer uses a highly stable light source and a special light head structure. The circuit part adopts high-precision detection technology, which improves the ability to resist light and electrical interferenceThe instrument adopts a metal casing, which can effectively shield external electromagnetic interference and ensure the stability of the instrument. Specification: 1 Measuring range 0 to 4.5D2 Measuring area ф2mm (optical hole diameter)3 Repeatability ±0.01D4 Measurement error(0.00D～3.00D)±0.02D (3.00D to 4.50D)±0.03D 5 Display method Broken code screen display6 Adapter 8.4V-1000mA7 Battery capacity 2200mAh8 Charging time ≤ 2.2h9 working time ≥ 24h (off the viewing lamp)10 viewing time ≥ 4h (open the viewing light)11 power consumption ≤ 4W12 Use of the environment 0 ~ 40 ℃relative humidity≤ 85%13 Overall dimensions 210 × 100 × 110mm14 machine weightabout 1.5Kg Accessories, Randomized Documents: 1、Adaptor2、Operation manual3、Warranty card4、Certificate of conformity5、Standard density film (optional) PAYMENT INFORMATION:1.We can accept Credit Cards,Paypal,T/T,Escrow and so on.2.The buyer is responsible for any tax and/or duty charged by their country. INTERNATIONAL SHIPPING:The package will be shipped by EUB DHL, FEDEX or EMS. After we shipped the parcel,we'll fill in the tracking number and inform you by e-mail.Please write the correct address and telephone number when you make orders,so the courier can contact you when they deliver the parcel to you. thanks WARRANTY INFORMATION:1.All the products have been checked and packed in good condition before dispatch.2.All the products with one year warranty.3.If you find any quality problems,please send it back within 3 days,and we'll send you a new one or refund you the payment after we get the returned one.4.Buyers have to pay for the return cost and we will pay the cost for resend5.All products returned should be in new conditions.