ReviewsWavelength Meter

Radical Professional Research Trinocular Geology LED Polarizing Microscope 9Mp PC Camera

• Head: Trinocular Inclined At 45 Degrees Rotatable 360 Degrees With Slots For Retarding Plates Sliding Bertrand Lens Camera Port: 100% Light Transfer.
• Analyser: With Slots For Retarding Plates Sliding Bertrand Lens Polarizer: 360 Dregrees Rotation Swing Out For Bright Field.
• Nosepiece: Centrable Quadruple Positive Centering Click Stops. Stage: 130Mm Graduated Rotatable Stage 360 Degree In Steps Of 5 Degree Stage Locking Facility.
• Compensator: Mica: 1/4Th Wavelength Gypsum: Full Wavelength Quartz 14 Wavelength.
• Condenser: Na 1.25 Movable With Analyzer Camera: 9 Mega Pixel Usb Camera W Optical Adapter.

D YEDEMC SM&MM Automatic Intelligent Optical Fiber Fusion Splicer Optical Fiber Welding Splicing Machine (Ai-9) & Fiber Cleaver Kit …

• 3 In 1 Fiber Holder suit for SM, MM, bare fiber, pigtail, rubber-insulated, multi fiber cable.
• Splice Loss:0.025dB(SM)、0.01dB(MM)、0.04dB(DS/NZDS).
• Fiber diameter:Cladding Diameter：80-150μm、Coating Diameter：100-1000μm.
• Fiber Cleave Length:Coating less than 250µm：8-16mm、Coating less than 250-1000µm:16mm..
• Built-In power meter (Wavelength 850nm/1300nm/1310nm/1490nm/1550nm/1625nm).
• Built-in Visual Fault Locator:Power:15mw,2hz flashing And Constantly Bright Mode..
• With 5-inch 800x480 high-resolution screen, is up to 300 times focus magnifications.
• 5s fast splicing 15s fast heating.Once splicing reaches to 50,000 times free replacement a new machine.
• Through the phone app, splicing is easy to operate.10 Languages to switch freely :English,french,Russion,Italian,Portuguese,Polish,Spanish,Thai,Arabic.
• Lifetime Friendly Customer Service,if have problem,pls contact us using the amazon message box,we will solve your problem in time and must give you a satisfactory solution .At the same time,you also need a little patience..

Radical Research Geology Ore Incident Light Polarizing Microscope w 9 Mp USB PC Camera

• Head: Trinocular Inclined At 45 Degrees Rotatable 360 Degrees, Camera Port: 100% Light Transfer.
• Analyser: With Slots For Retarding Plates Sliding Bertrand Lens Polarizer: 360 Dregrees Rotation.
• Nosepiece: Centrable Quadruple Positive Centering Click Stops Epi Transmitted Illumination: 20W Halogen 110/220V.
• Objectives: Strain Free P4X, P10X, P40X Spring Loaded Eyepieces: Wf 10X, 10X With Cross 10X With Micrometer, Stage: 130Mm Graduated Rotatable Stage 360 Degree In Steps Of 5 Degree Stage Locking Facility Compensator: Mica: 1/4Th Wavelength Gypsum: Full Wavelength Quartz 14 Wavelength.
• Camera: 9 Mega Pixel Usb Camera W Optical Adapter Software: Drivers For Win Mac.

uxcell DT-6234B Photo Tachometer Cycloscope Revolution Indicator Rotation Non-Contact Speed Measurement RPM Meter

• - Non Contact Digital Photoelectric Tachometer RPM Meter.Extra large 5-digit LCD display(digital height 0.7-inch).Wide measuring range from 5 to 100,000 RPM.Laser Class II.
• - The last value, max value, min value will be automatically stored in memory automatically and can be obtained by pressing Memory Call Button anytime.Test Range:2.5 to 99,999 RPM (r/min).Resolution:0.1 RPM (2.5 to 999.9 RPM),1 RPM (over 1,00O RPM).Sampling Time:0.8s(over 60 RPM).0.5s(over 120 RPM).Detecting Distance:50 to 250mm/2 to 10inch(LED).
• - Test Range Select:Automatic.High visible LCD display gives RPM reading exactly with no guessing or errors and saves battery energy.Time Base:6MHz Quartz crystal.Circuit:Exclusive one-chip of microcomputer LSI circuit..
• - NOTE:The non-reflective area must always be larger than the reflective area,if the shaft is reflective,it must be covered with black tape or black paint before attaching tape.Shaft surface must be clean and smooth before applying tape..
• - What you will get:1 x DT--6234B non contact Photo Tachometer,23.6 inches reflective tapes,4 x 1.5V AA batteries,1 x Carrying Case(Artificial leather case),1 x Operation maunal..

3MHz Ultra Photon Rejuvenation 3-Color Light Facial Care Massager Anti Aging Machine Skin Toning Device

• The Photon Beauty Device, designed for facial beautification, uses natural light waves, which are transmitted by LEDs into the skin..
• Red light: wavelength 625 ±3nm, activate cells, promotes the formulation of collagen, remove wrinkles of eyes and eye pouch..
• Green light: wavelength 525±3nm, balance of water and oil for oily skin , very suitable oily skin,sensitive skin..
• Blue light: wavelength 465 ±3nm, activate cells, down melanin, lighting and whiting skin, also can make skin moisture..
• Comes with a pair of goggles, power adapter and gift box. Device needs to be powered by power adapter..

2 Pack 1000w LED Grow Lights for Indoor Plants Full Spectrum, Plant Growing Lamps with Veg & Bloom & Veg-bloom 3 Modes, Daisy Chain and Temperature Hygrometer for Indoor Grow Tent Plant Veg and Flower

• ...at labile shortcomings of LED reflectors, if a short circuit occurs, the reflector can easily melt and catch fire, the upgraded aluminum heat sink is applied to improve the heat dissipation efficiency, slow down the light decay, and be safe, energy saving and efficient.
• Full Spectrum LED Indoor Grow Light: red light wavelength is 620-625NM, blue light wavelength is 450-455NM, white light lumen is 6000-6500K, infrared light wavelength is 730-740NM, purple light wavelength is 395-400NM, orange light wavelength is 600-610NM, from seeds to flowers, full spectrum LED grow lights are suitable for all stages of plant growth, and help the growth of the whole life cycle of plants.
• Extends the Lifespan: this LED grow lights for indoor plants full spectrum have a longer lifespan than most LED lights are rated for, in contrast to many other grow lights that tend to last around 20, 000 hours before needing to be replaced, ours features good technology that extends the lifespan to no less than 30, 000 hours.

Treedix 2PCS Multifunctional PCB Ruler 3inch Measuring Tool Color Wavelength, Schottky Diode, Zener Diode Resistor Capacitor Chip IC SMD Diode Transistor for Electronic Engineers Printed Circuit Board

• 【Multi-function ruler】These two multi-function rulers integrate relevant information of PCB design, such as angle gauge, color wavelength, Schottky diode, Zener diode, BJT NPN, current and voltage formula, unit conversion, inch fraction Conversion.
• the other measuring ruler has angle gauge, device, IC pin pitch meter, resistance capacitor chip package.
• 【Simple identification】It is very useful for identifying the size of SMT/SMD components, BJT NPN, BJT PNP, etc. The ruler provides you with a straight line centimeter mark and an inch mark.
• 【Excellent quality】Double-sided gold-plated, practical and lightweight, can be placed in a card holder and carried with the sound, it is a standard multi-function ruler for electronic engineers.
• 【Professional accuracy】: The scale of the printed circuit board is 3 inches, which brings you accurate and professional accuracy. It is also a measuring tool with necessary functions that electronic enthusiasts urgently need in the design process..
• 【After-sales service】: Our scale has undergone strict quality inspection, if you have any questions, please feel free to contact me, I believe our caring service will make you satisfied.

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).

2 Packs Bug Zapper Mosquito Trap Indoor Insect Attractant Trap Lamp Mosquito Killer for Home Indoor

• Double trapping ability, the mosquito killer lamp has 6 ultraviolet lamps, which emit light with a wavelength of 365-395NM, which is very attractive to mosquitoes. The light is used to attract mosquitoes, then the fan sucks them in so they can’t escape..
• Please use it for 3 to 5 consecutive days for the first time. Close the doors and windows during the day to keep the environment dark and put it in the bedroom to kill mosquitoes. When you go nto sleep, move it to the living room to kill mosquitoes (to prevent mosquitoes in the living room from flying into the bedroom). Try to place it at a position about 1 meter above the ground. Do ot turn on the lights, open doors and windows, and do not place it on the air conditioner or fan outlet..
• Turn on the mosquito killer 3 hours before entering the room, do not put it on the bedside or around the human body, because human body temperature and odor will affect the effect of attracting mosquitoes..
• Look at the mosquito storage box after seven days, because the physical mosquito killing method is adopted, and the mosquitoes are killed by air-drying and dehydration. If it is opened frequently, mosquitoes that are not dead will fly out..
• Mosquito killing lamp adopts physical mosquito killing method. Unlike mosqui....

Azzota SM-1100, 4nm Economic UV-VIS Spectrophotometer, Wavelength Range: 200-1000 nm

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..