Best Optical Measuring

uxcell A13082300ux1431 2 Pcs Water Sensor Rainwater Module Rain Detection Module 3.3V-5V

Speed Measuring Sensor IR Infrared Slotted Optical Optocoupler Module Photo Interrupter Sensor for Motor Speed Detection.
IT can be used for slot-type photoelectric, as long as the non-transparent objects through the slot can trigger the output 5V TTL level. Schmitt trigger to use the trembling pulse, very stable, can be used for small car measuring speed, distance measurement and so on!.
Signal output indicator (while breaking the beam, outputs low level, the indicator lights up).
Infrared detection, eliminating the interferences of external stray light.

【MEASURING RANGE】Rotate: 2.5~99,999RPM；Rotating Speed Resolution: 0.1RPM(2.5~999.9RPM)/ 1RPM(Over1000RPM).
【POWERFUL FUNCTION】This Digital Tachometer Applies the MCU and electro optical technology, which can perform contact measurement of rotating & linear rolling speed efficiently. Multi-functions Supports High Accurate and Stable Performance: Automatically store for the MAX, Min and LAST value..
【HIGH QUALITY】Equipped with convex channel lineal rate sensor, it is convenient for measuring the lineal rate of the wire, cable and ropes etc. Large LCD display with clear reading. Low battery indication function, data hold function, powered by 3 * AAA batteries..
【Durable and comfortable】 Solid structure built with durable electronic elements and light ABS plastic house. It has convertible accessories for different measurement. Ergonomic size fits in your hand perfectly to get a better grip..
【WIDE APPLICATION】This tachometer has wide range of applications include measuring rotating speed of machine, motors, model cars, wheels, lathe for metal or wood cutting work etc..

【Practicality】 - Portable turbidimeter, easy operation, good stability and high precision. Enables fast, accurate and consistent turbidity measurements..
【Liquid Crystal Display】 - Accurate reading, LED liquid crystal with backlight, easy operation and high availability..
【Optical System】 - The turbidimeter uses a high precision optical system. The measurement principle is based on measuring the scattered light from the infrared light source at 90 ° turbidity..
【Two Power Supply Methods】 - AC power and DC power, 4 batteries or 6V power supply can be supplied with power and easy to carry..
【Application Range】 - The turbidity meter can be used for water quality testing, wine industry, drinking water, swimming pool water, pharmaceutical industry, waste water treatment, etc. If you have any questions during use, please feel free to contact us. We will actively solve it for you..

2 PACK, PLASTIC FREE PACKAGING & SUSTAINABLE - Our ECOS Laundry Detergent Sheets are 100% plastic-free-packaging making them a sustainable choice for your home. With ECOS dissolvable laundry sheets you can reduce plastic waste with every load..
1 LAUNDRY SHEET = 1 LOAD OF DETERGENT - Just toss it in and watch as it instantly dissolves in both hot and cold water, fighting dirt and tough stains while leaving your clothes feeling clean, fresh, and residue-free..
NO MEASURING, NO MESS - Avoid the mess, the space and the measuring with ECOS. Use 1 sheet for a full load or half for a smaller load. No measuring and nothing to spill..
DERMATOLOGIST TESTED - Our clean formula is a hypoallergenic and gentle alternative to traditional liquid detergents and laundry soaps. Made without dyes, optical brighteners, parabens, phosphates or 500+ other nasty ingredients..
CLEAN FORMULA WITH VISIBLE RESULTS - Since 1967, ECOS has created safer, powerful cleaning products by using enzymes found in nature..

【EXCELLENT MATERIAL】 The linear stage made of aluminum alloy material with black anodized surface. For precision movement, precise positioning, stable performance, easy installation and removal..
【HIGH ACCURACY】 3-Axes optical stage, X, Y, Z axis, travel: XY: ± 6.5mm, Z: 10mm, with micrometer heads for accurate position, Accuracy: 0.02 mm..
【SPECIFICATION】 Workbench size: 40 * 40mm (1.57 inches), Load: 19.2N (2kgf), Minimum scale: 0.01mm.
【APPLICATION】 Widely used in optical instruments and apparatus, measuring equipment, testing fixture, Semiconductor manufacturing equipment, testing machine, microscope, transporter, process machine, medical equipment, printing machine, etc..
【SERVICE】 If you have any questions or need any suggestions about the products we have sold, please feel free to contact us, we will provide you with quality after-sales service..

High Precision optical clarity material Three Black Lines, internally fitted gives minimal parallax errors. For professional measuring and normal usage..
Use For Adjust the furniture placement level, Photo frame/3D printer/Camera horizontal，factory machinery, carpentry measuring level and equipment level such as high accuracy of measurement requirements is available..
Mini appearance, easy to carry, more accurate measurement,Use 3M double-sided adhesive to stick and fix in various directions..
Magnetic/nonmagnetic Dual-use Bubble level Put onto the surface you want to measure, the middle position of bubble inside the spirit level will show that the surface is level..
Magnetic small pocket level tool,easy carry and storage,Package List:3x Mag Strip and 3x Square Bubble Level Measuring Tools Total Size : 52*18*15mm Weight:27g. Color : Green.

PROFESSIONAL HEART RATE OXIMETER MODULE -- Heart Rate click carries MAX30100 integrated pulse oximetry and heart-rate sensor.
OPTICAL SENSOR WITH TWO LEDs -- It's an optical sensor that derives its readings from emitting two wavelengths of light from two LEDs.
WORKING PRINCIPLE -- A red and an infrared one - then measuring the absorbance of pulsing blood through a photodetector.
MORE ACCURATE -- This particular LED color combination is optimized for reading the data through the tip of one's finger.
SUITABLE APPLICATIONS -- It is well used in Wearable Devices, Fitness Assistant Devices, Medical Monitoring Devices.

One 18 count container of OxiClean Color Boost Color Brightener plus Stain Remover Power Paks.
Contains active oxygen power to reach deep into fabric fiberst to quickly and safely break up and remove stains.
Color safe brightener has a built-in optical brightener that reveals vibrant colors and restores radiant whites.
Use directly on stains to pre-treat clothes before washing.
The most convenient way to do laundry – no mess, measuring or spills.

Optical Tool Bar Magnifying Glass Measuring Scale Blue Raised Domed Bar Magnifier.