Reviews Handheld Spectrophotometer For Archaeology

CGOLDENWALL 722N Visible Spectrophotometer Wavelength Range 320-1020nm Spectral bandwidth 4nm LCD Digital Lab Spectrophotometer 110V with USB and RS232 interfaces Wavelength accurracy±2nm

• Adopted Technology- 722N type spectrophotometer adopts microcomputer processing technology, applicable for material determination&quantitative analysis in visible spectroscopy field. Wavelength range: 320-1020mm.
• Large Sample Chamber- The visible spectrophotometer possess a large sample chamber, which can even accommodate 10cm cuvettes..
• Durable Tungsten Lamp- The instrument adopts refined tungsten lamp, ensuring the service life of the instrument..
• High Accurate Measurement- The measurement of this spectrophotometer is accurate, reproducible and stable. There are extremely small errors in measuring the wavelength and transmittance..
• Wide Application- The visible spectrophotometer can be widely applied in medical testing, food, petrochemical industry, environmental protection and monitoring and many other fields..

Kyoto Electronics DA-130N Portable Density Meter

• High precision: High wavelength accuracy (±3nm), Wavelength range(350~1020nm), good monochromaticity, low astigmatism, high accuracy of measurement and good stability..
• Automatic Function: Automatic light door, automatic zero and hundred adjustment equipment calibration..
• Easy to Use: This spectrophotometer has digital display shows measurement values. Visible spectrophotometer, an analytical instrument commonly used in physic-chemical laboratories to make quantitative and qualitative analysis of specimen materials in the Visible..
• Long Service Life: Digital Spectrophotometer Spectrometer adopting tungsten lamp to ensure the service life of equipment. It is a must-have multi-purpose analytical instrument for routine laboratories..
• Widely Application: Widely used in medical, food, petrochemical industry, environmental protection and monitoring, etc..

Rare - James A Michener The SOURCE in Dust Jacket 1965 NICE COPY

fonhunt Visible Spectrophotometer 721 LCD Digital Lab Vis Spectrophotometer with 350-1020nm Range Tungsten Lamp Lab Equipment Spectrophotometer Large Sample Chamber,

• Visible spectrophotometer, an analytical instrument commonly used in physic-chemical laboratories to make quantitative and qualitative analysis of specimen materials in the Visible. Wavelength Range: 350-1020nm, Spectral Bandwidth: 6nm, Wavelength Accuracy: ±3nm.
• This spectrophotometer has digital display shows measurement values, large sample chamber, maximum can place 10cm of colorimetric dish..
• Automatic light door, automatic zero and hundred adjustment equipment calibration..
• Visible Spectrophotometer, adopting tungsten lamp to ensure the service life of equipment..
• Excellent metering accuracy is higher than the general instrument. Widely used in medical, food, petrochemical industry, environmental protection and monitoring, etc..

750 Underwater Metal Detector for Diving, PI Waterproof Probe Pulse Induction Technology Handheld Gold Finder with Pinpointer Vibration and LCD Detection Indicator

• ▲FULLY WATERPROOF PINPOINTER--- The TM750 underwater metal detector is a state-of-the-art handheld pinpointer that incorporates Pulse Induction (PI) technology, which allows you to hunt metal in water, on land, or in any type of soil..
• ▲SEALED & SAFE CONSTRUCTION--- This gold detector is waterproof to a depth of 100 feet, it can be used in almost any environment, including fresh or saltwater. The stainless steel hardware is built to last and a build-in low battery sensor is safe. You can take it to dive in the sea.
• ▲TARGET DISTANCE--- Automatic tuning, the pulses of vibration increase in frequency as the probe tip approaches the target precision pinpointing. Which allows you to locate the target metal faster and never miss any target..
• ▲VIBRATION & LED LIGHT--- When the target metal is detected, the Vibra-iking750 signals with pulses of vibration and flashes of bright blue light so that you can easily distinguish detecting signals..
• ▲MULTI APPLICATIONS- This gold finder can be for diving searching, Coins, Jewelry, Relics, Public security check, Police detecting, Professional archaeology, Pinpointing decoration line, etc..

Jenway 632-031 Sipper Pump with Inlet and Outlet Tubing for 63 Series Spectrophotometer, 110V

• 110V sipper pump delivers controlled and reproducible sample volumes from 75 microliters to 9.5mL into the chamber of a flow-through spectrophotometer cuvette.
• For use with the Jenway 63 series spectrophotometer (sold separately).
• Timed aspiration mode provides a wash cycle to help maintain consistent sampling.
• Continuous aspiration mode allows monitoring of a bulk or flowing sample.
• Includes inlet and outlet tubing for moving sample material.

scenstar Visible Spectrophotometer 721 350-1020nm Wavelength Range Spectrophotometer Portable Lab Equipment (US Stock)

• Used in physic-chemical laboratories to make quantitative and qualitative analysis of specimen materials in the ultraviolet, visible spectral range.
• Visible spectrophotometer can be used in the medicine, clinical examination, biochemistry, quality control, petro-chemical industry and environmental protection..
• This spectrophotometer has digital display shows measurement values..
• Automatic light door, automatic zero and hundred adjustment equipment calibration..
• Adopting tungsten lamp to ensure the service life of equipment..

Hilitand MD740 Handheld Metal Detector 30m Pulse Induction Pin Pointer Metal Locator Full Waterproof with Hanging Rope (NO Battery)

• ...nly on flat ground and water, but even in strongly permeable hard soil layers such as granite, limestone and shale..
• [WIDELY APPLICATIONS] Searching for metals, such as coins, keys, relics, jewelry, needles and much more, hunting on beaches, mountains, or diving searching, also can be used for public security check, archaeology, pinpointing decoration line, police detecting, waste Iron Recovery and so on..
• [ABOUT THIS PRODUCT] This metal detector is easy to operate,turn on the switch then it can be used,and the switch can adjust three detection modes-sound,vibration,sound and vibration alarm mode,you can switch the mode according to the place of use.Moreover,this detector comes with display to show the strength of the detected signal.When metal is detected,the closer it is to the detection target,the stronger the signal.Also includes a belt loop and a wrist strap,convenient to use and carry..

CGOLDENWALL Visible Spectrophotometer 721G Lab Equipment Wavelength Range:340-1000nm Spectral Bandwidth: 5nm

• This Visible Spectrophotometer adopts a microprogramming technology. It can be used in a material determination, a quantitative analysis in a visible spectrum field. This equipment is a multipurpose analyzer which is necessary for all general labs. It applies to the medical health, clinical examination, biochemistry, petrochemical engineering, environmental protection, quality control’s department and teaching lab of universities and colleges etc..
• Fundamental principles: The spectrophotometer analytical method is based on the different materials’ molecular structure’s selective absorption of electromagnetic radiation..
• The available electromagnetic radiation’s spectral region is normally between 330nm-800nm..
• Main Technical standard: Wavelength Range: 340nm~1000nm.
• Stray light: ≤0.5%(T)(at 360nm ,with NaNO2).

zorvo Visible Spectrophotometer 4 LCD 721 Digital Lab Visible Spectrophotometer 350-1020nm Tungsten Lamp Lab Equipment 110V

• ✅Visible spectrophotometer: It is an analytical instrument commonly used in physic-chemical laboratories to make quantitative and qualitative analysis of specimen materials in the Visible, visible spectral range finds much scope for its service in such fields as medicine, clinical examination, biochemistry, quality control, petro-chemical industry and environmental protection..
• ✅Digital Display: This spectrophotometer has digital display shows measurement values. Display: 4 LCD.
• ✅Advantages: Excellent metering accuracy is higher than the general instrument.
• Adopting tungsten lamp to ensure the service life of equipment.
• Large sample chamber, maximum can place 10cm of colorimetric dish..
• ✅Specifications: Wavelength Range: 350-1020nm.
• Light Source: D2 lamp (1500hr), Tungsten lamp (2000hr).
• Dimensions (W x D x H): 450 x 520 x 320mm.
• ✅Widely Application: Widely used in medical, food, petrochemical industry, environmental protection and monitoring, etc..