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Best Communication Instrument

Qiaoba Laser Diode Module 650nm 5mw Red Lazer Diodes 2Pack (Laser Cross)

  • Wide Range of Working Temperature: The mini diode laser head can work in -10 degree~£«40 degree.
  • Application: The red dot laser head widely be used for Level instrument, Ground instrument, Long distance laser listener remote light control, Long distance laser wireless communication, etc..
  • Feature: The laser head with 650nm wavelength, and working voltage: 5V. Output power: 5mW. Laser Shape: Dot.
  • Wire connection: Red wire connect to Positive, Blue wire connect to Negative.
  • Package Include: 15 Pack mini laser dot diode module head red 650nm 6mm 5v 5mw diode lasers..
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MakerFocus 20pcs 5V 650nm 5mW Red Dot Laser Head Red Laser Diode Laser Tube with Leads Head Outer Diameter 6mm

  • [Wide Application]: Level instrument, ground instrument, electric toys, long distance laser wireless communication, stage light, flashlight, laser gyro, laser pointer, electric toy, industrial use. etc.
  • [Wire connection]: Red wire connect to Positive, Black wire connect to Negative.
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Full Version USB Hart Modem WS232UP Hart -USB Modem Hart Transmitter with Built-in 24VDC & Loop Resistor for All HART Device

  • The Latest Full Version USB HART MODEM WS232UP, With Built-in 24V DC & Loop Resistor, Windows XP/7/8/10 Support, Suitable For All Devices Which Support HART Protocol, etc..
  • The WS232UP USB-HART Modem provides a complete and flexible PC communication link to HART networks and power kit and loop resistor, for commissioning, servicing, calibrating, or acquiring data from any HART instrument or transmitter. The WS232UP is developed based on BELL202 modem standard, this external interface is rugged and compact and ideal choice for field service, commissioning, engineering, training, table top shows, lunch and learns and demo cases..
  • Fully HART compliant for communication with any HART instrument and error-free slave testing * DC-DC isolation power draws from USB port and needs no external power supply.
  • * Three modes: 1) 24VDC/270Ω. 2) Normal. 3) 270Ω. The mode is easily slide-switch selected so you’ll always have a power supply or loop resistor with you * Easy installation and use, this modem can power all 2-wire HART devices-independent of supplier.
  • * Rugged aluminium alloy case gives you industrial-grade reliability in a small package * Free HART application software for you to configure your HART device * Smart Design, smaller than a normal name card.
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Hilitchi 40Pcs Mini Laser Dot Diode Module Head WL Red 650nm 6mm 5V 5mW and 3V 5mW and Light Dependent Resistor LDR Sensor 5 mm GM5539 5539

  • 5V 650nm 5mW Red Dot Diode Laser Head Red Laser Diode 6mm Red Laser Diode Laser Head.
  • Wide range of wroking temperature: -10°C to +40°C.
  • Application: Level instrument, Ground instrument, Long distance laser listener remote light control, Long distance laser wireless communication.
  • Can be used to connect diode tubes for multiple use.
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Play phone for kids Baby Toy

  • Kids friendly design, dozens of animations and sweet sounds.
  • Interactive communication with animated smiles.
  • Sounds and multiple themes for dialer screen.
  • 9 games, 11 instrument sounds and much more.
  • Real phone experience, incoming calls, missed call alert.
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2PCS Color Wooden Orff Sand Ball Maraca Percussion Hand-cranked Musical Instrument

  • Aesthetically hand painted, added colorful colors,a fun noisemakers for a Fiesta party..
  • Describe the ability to develop manual brain, grasp, vision, interest training, senses, hearing, other ability development, parent-child communication, hand-eye coordination.
  • Made of wood, which are pure natural wood, non-toxic and non-polluting..
  • The Wooden Sand Ball is an Orff instrument.This is a hand-rolled musical instrument. You can use it to play your favorite percussion anytime, anywhere, on any occasion..
  • In your hand, you only need to shake it to make a pleasant sound..
  • You can use it to play your favorite percussion anytime, anywhere, on any occasion..
  • It is bright and beautiful, colorful, hand-cranked with a sweet and crisp sound, which can provide your child with good visual and auditory effects..
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Tegg 10 PCS Mini 650nm 6mm 5mW Red Laser Dot Diode Module Copper Head 3.3V

  • Made of high quality material.Durable, long service life. Small size. Light weight..
  • Low power consumption.Simple driving circuit.Convenient modulation.Resistance to mechanical shock and vibration..
  • The laser head consists of a luminescent tube core, a condenser lens and a copper adjustable sleeve. The three parts have been assembled, the focal length of the lens has been adjusted, and the lens has been glued together with strong glue. The user can connect the 3.3V DC power supply to work..
  • Be widely used for laser toys, Level instrument, Ground instrument, Long distance laser listener remote light control, Long distance laser wireless communication..
  • Working voltage: 3.3V. Wave length: 650nm. Output power: 5mW. Shape of the laser light: Dot. Outer diameter: 6mm /0.24Inches. Package: 10 PCS..
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Fiber Attenuator Singlemode Simplex LC/UPC Fixed 2dB

  • [MAIN PARAMETER]: LC/UPC Female to LC/UPC Male.
  • [MATERIAL]: The core material of the adapter is ceramics..
  • [FEATURE]: To ensure the optical power stay in a stable level on its original transmission wave.High attenuation accuracy, low added loss and good stability..
  • [SPECIFICATION]: Bandwidth: 1260nm - 1640nm.
  • [APPLICATION]: Widely used in the fiber optic communication system, for example, optical instrument calibration or fiber signal attenuation..
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Networx Fiber Optic Attenuator, Fixed - LC/UPC 20dB

  • [MAIN PARAMETER]: FC/UPC Female to FC/UPC Male.
  • [MATERIAL]: The core material of the adapter is ceramics..
  • [FEATURE]: To ensure the optical power stay in a stable level on its original transmission wave.High attenuation accuracy, low added loss and good stability..
  • [SPECIFICATION]: Bandwidth: 1260nm - 1640nm.
  • [APPLICATION]: Widely used in the fiber optic communication system, for example, optical instrument calibration or fiber signal attenuation..
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Guide Rail Bearing, High Speed V1804, Bearing Steel Electric Tools Fitness Equipment for Motor Toys

  • Smooth operation, small error, low noise, high speed..
  • Bearing has a V groove that generally rides on a guide rail..
  • Made of high quality steel material for durability and long service life..
  • Suitable for motor, toys, model, instrument and meter, electric tools, communication equipment, fitness equipment and other fields..
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uxcell 2Pcs KW4-3Z-3 5A/250VAC Simulated R-Lever Type Micro Switches

  • Rating Load: 5A/250VAC. And the contact type is SPDT NO+NC.
  • 3 pins, applicable to AC DC control circuits.Reliable for years.
  • High precision design, use easily.Designed to control the movement of a mechanical part..
  • IP 40 Protection Degree. Which means this switch is available to tools & small wires (>1mm).
  • Widly used in appliance, elctronic equipment, automatic machine, communication equipment, car electric, apparatus and instrument, electro motion tool....
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uxcell 3dB FC Fiber Optic Attenuator, FC/UPC to FC/UPC Single Mode 9/125 Adapter

  • Fiber Mode: 9/125 Single mode / 62.5/125 Multi-mode..
  • [ADJUSTABLE]: Mechanically Adjustable Attenuation Value: 0-15dB..
  • [FEATURE]: To ensure the optical power stay in a stable level on its original transmission wave.High attenuation accuracy, low added loss and good stability..
  • [SPECIFICATION]: Operation Wavelength: 1310nm, 1550nm, 850nm, 1550nm..
  • [APPLICATION]: Widely used in the fiber optic communication system, for example, optical instrument calibration or fiber signal attenuation..
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Ladieshow 250Pcs Micro Switch,Tactile Push Button Switch Assortment Momentary Push Button for Car Remote Control Key

  • Rating: Ue: AC125/250V, Ie: 15A/7.5A, Ith: 20A.
  • OF max. 200g RF min. 50g PT max. 1.2mm OT min. 0.6mm MD max. 0.3mm OP 14.7+/-0.5mm.
  • Widly used in appliance, elctronic equipment, automatic machine, communication equipment, car electric, apparatus and instrument, electro motion tool etc....
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