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  • Item Type: Button Switch
  • Size: 74x55x29mm / 2.91x2.17x1.14in
  • Mounting Diameter: 22mm and 25mm


  • Canceling the handle switch, when the power supply is connected, it can be used directly;
  • The power supply is cascade.
  • Two out test for 2pcs wrist strap.
  • Electrical performance: Audible alarm
  • To monitor two pieces wrist strap at the same time.
  • Earth system of body wrist strap in normal operation;no noise,green light on.
  • Earth system of body wrist strap in circuit-broken status:buzz noise,red light glittering

M2.5 M3 M4 M5 M6 M8 Nylon Round Head Cross Recessed Machine Screw Plastic Phillips Head Metric Bolts White Length 4mm-60mm
Various screws, nuts, fasteners, spacer standoffs are available; such as gaskets, washers, bolts, etc. They are made of nylon, brass or stainless steel with normal drive heads including flat head, Philips head, round head, socket head and so on.
Since the sizes and quantities are various from model to model, please pay attention to the size description and choose the exact one you need.

  • Item: white Phillips round head nylon screw
  • Material: nylon
  • Size: M2.5/M3/M4/M5/M6/M8
  • Feature: Good insulation, corrosion resistance and light weight
  • Operating temperature:-20 ℃~-120 ℃
  • Fire rating: 94V-2
  • Product Size: thread diameter (D) * thread length (L) e.g.: M5*40 (thread diameter 5mm and length 40mm) excludes head length


  • Which can ensure long time using.
  • Model: Nylon countersunk screw M2.5-4.0
  • Head type: countersunk head
  • Category: Machine screws
  • It is an ideal tool for home and workplace, professionals, amateurs, landlords, handymen, repair men, woodworking, construction, plumbing, HVAC, 3D printed projects, communication equipments, ship assembly and so on.



  • ATmega32u4 Microcontroller
  • Input Voltage: 7-12V
  • 20 Digital I/O Pins
  • 7 PWM Channels
  • 12 ADCs
  • 16MHz Clock Speed
  • 32 KB Flash Memory
  • Require USB micro cable to load program

About this item

  • Type: sma to sma coax cable connector right angle | Cable type: low loss RG316 coaxial cable, Length: 15CM | sma male connector
  • Short and flexible coaxial cable |This versatile cable features a Right-Angle connector, which offers a more natural fit at the device connection point and helps prevent unnecessary strain and damage to the port.
  • The sma right angle coax cable is good for Antennas, FPV Drone, LTE hotspot, gateway, sma radio, Antenna Analyzer, 4g lte antenna sma, router, USB Tuner, RTL SDR dongle, SWR meter, Wireless LAN Devices, WiFi antenna, Radios External Antenna,etc.

Product Specification : 

  • Rate Current : 13A
  • Grounding : GFCI
  • Application : Residential / General-Purpose 
  • Model Number : NB-KF3E 
  • Colour : White 
  • Rate Voltage : 240V AC 50HZ 
  • Residual Current : 10mA/30mA
  • Tripping Time : < 0.1s 
  • Voltage Withstand :2000V
  • Endurance Test Time : 20000
  • Limited Current : 250A 
  • Function : PRCD RCD GFCI ELCB 
  • Net Weight :132g 
  • Rated Power : 3120W

Application Ideas


• Feet on the bottom of small appliances, handheld electronic devices, telephones, keyboards, scales, clocks and computers.
• Stops for cabinet doors, lids and drawers.
• Spacers for picture frames to provide alignment and electronic/automotive applications.
• Protectors to prevent damage during shipping.



  • Item Type: Power Module
  • Material: PCB
  • Working Voltage: DC 9V~36V
  • Output Voltage: 5.2V
  • Maximum Output Current: 5A
  • Purpose: Control The Change of DC Voltage
  • Applicable Scenarios: Industry, Electronic Equipment, Etc

Technical Details

  • Brand :Folany
  • Manufacturer : Folany
  • Package Dimensions : 11 x 7 x 2 cm; 20 Grams
  • Item part number : ‎Folanynfroq6dci87228
  • Operating System : ‎Ios
  • Compatible Devices : Default
  • Special Features : Default
  • Mounting Hardware : ‎Case
  • Number of items : 1
  • Keyboard Description : Default
  • Connector Type : USB
  • Hand Orientation ‎ : Ambidextrous
  • Manufacturer : Folany
  • Item Weight : ‎20 g

TDA2822M 2.0 Stereo Audio Amplifier Board Dual Channel AMP AUX Amplifier Board Module DC 1.8-12V audio board


  • Supply voltage: DC 1.8-12V
  • Output Power: 0.1W-5W ;4-32 Ohms
  • Dimensions: 52 x 31 x 23mm (L*W*H)
  • Input Interface: 3.5mm Audio input
  • Adjust form: volume adjustment
  • Using TDA2822M acts as amplifier chip, this chip is STMicroelectronics (ST) developed dual-channel monolithic power amplifier IC, usually in the pocket cassette player (WALKMAN), tape recorders and multimedia speaker in for the audio amplifier.
  • Simple circuit, good sound quality and wide voltage range


  • Mounting Style : Panel Front Mounting.
  • Mounting Pane : Screw Type.
  • Terminals (Standard) : Screw - Type .
  • Voltage : 250 V .
  • Current : 15 A.
  • Contacts, Terminals : Cu Alloy, Nickel Plating
  • Operating Temp. Range : -20°C to +85°C.
  • Contact Resistance : 5 m ohms Max.
  • Body : Nylon .

Working Principle:

The connecting wheels of the large and small transmission wheels increase the engine speed. There are magnets and copper coils inside the generator. The copper coil rotates to cut the magnetic induction line motion, thereby generating an induced current. Light up the small lamp beads by boosting the voltage through the booster board.

  • UK-2.5B
  • Wire section:0.2-2.5mm2
  • Rated voltage: 690v
  • Rated current: 32A
  • ​​​​​​​​​​​​​​Product material: fire retardant