Reviews Communication Instrument

HiLetgo 10pcs 5V 650nm 5mW Red Dot Laser Head Red Laser Diode Laser Tube with Leads Head Outer Diameter 6mm

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.

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..

[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.

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.

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.

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..

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..

[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..

[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..