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  • Voltage : 5VDC, 15mA, 40Hz, 2cm to 255cm,
  • Measuring Angle : 15degree, 45*20*15mm
  • Send IO trigger pin with at least 10us active high signal.
  • The module will send automatically eight 40kHz pulse from the transmitter(that’s why it is called ultrasonic). Any object detected will reflect the transmitted pulse back to the receiver.
  • The signal return in active high level can be detected at pin ECHO. The high level time, which is time of high output duration from sending ultrasonic and returning, resembles the distance.
  • Test distance = (high level time×velocity of sound (340M/S) / 2,
  • Avoid soft objects as it will absorb most of the transmitted waves


  • Power Supply :5V DC

  • Quiescent Current : <2mA

  • Working Current: 15mA

  • Effectual Angle: <15°

  • Ranging Distance : 2cm – 400 cm or 1" - 13ft

  • Resolution : upto 0.3 cm


  • 45.3 x 20.4 x 15.4mm (not including 4-way header pins)


  • Material: Arcylic
  • Suitable for HC-SR04 Ultrasonic Sensor
  • Thickness: 3mm
  • Size: 56x68x28mm
  • Weight: 8g


Material: Acrylic
Color: Yellow
Thickness: approx. 2.8-3.1 mm


PU Pneumatic Air Hose:
Type: PU4X2.5/PU6X4/PU8X5/PU10X6.5
Color: Black/Blue/Transparent

Application - Used for piping of pneumatic devices.

- Polyester-based thermoplastic Polyurethane resin(TPU)
- Excellent flexibility at low temperatures.
- Light-weight with good tolerance to wear and chemicals.
- Convenient for piping as it has better flexibility than nylon tubes.
- Tubes are available in diverse colors according to the working situation.

- Fluid type: Air/Industrial Water
- Working Pressure: 0-10 Bar
- Working Temperature: 0-60°C

***FOR EXAMPLE*** -If you want purchase 5meter, Please click 5 times for the variant you want, we are selling in pcs/meter.




1. This product only has the USB lighting function, and does not have the storage function.

  2. The lamp will be a little hot during use, which is normal. safe to use.

3. Need mobile power, USB power adapter, computer USB power supply, plug and light.

Nickname: USB colorful lights (color adjustment + red and blue alternate flashing)

Purpose: It can be plugged into laptop computers, desktop computers, mobile power supplies, and can also be plugged and lighted through a 5V power adapter, which is convenient and fast.

  • Interface: 2 Pin
  • Clover Leaf Plug Specifications: Europe Standard Plug 
  • Cable Length: 1.8 meter / 3meter
  • Color: Black Input: 100-240VAC
  • Material : Plastic
  • Color : Semi-Transparent Clear White
  • Capacity : 250mL
  • Size : 110 mm x 73mm x 120mm
  • Net Weight : 24g
  • Also can be used in Laboratory.
  • With this measurement beaker, ensures that your measurements will be accurate, even for small quantities.
  • This 250ml measuring jug is ideal for accurate liquid measurement.
  • 100% brand new with high quality
  • Material: Single Side Copper PCB
  • Size: Approx.6.5 x 14.5 cm
  • Thickness: Approx.1.2mm
  • Hole Diameter: Approx.1mm
  • Hole Pitch: Approx. 2.54mm
  • Weight: Approx.0.0131kg/pc
  • Quantity: 2Pcs
  • For point to point DIY soldering
  • Interface: 3 Pin
  • Clover Leaf Plug Specifications: UK Standard Plug (Same with Malaysia Standard)
  • Cable Length: 1.5 meter
  • Color: Black
  • Input: 100-240VAC
  • Fuse: 3A fuse built in (can be easily remove)
  • Condition : Brand New
  • Brand : Generic
  • Model Number : Caution Stickers 
  • Type : Caution Labels 
  • Dimension : 1inch * 2inch
  • Pre-printed Message : Static Sensitive Devices
  • Smooth surface paired with high mechanical strength and toughness
  • Anti-static, ESD stainless steel.
  • High purity - clean room compatible
  • High abrasion resistance
  • Excellent chemical resistance to most acids and solvents

Typical applications:

  • Handling of scratch sensitive samples
  • Cleaning and etching processes
  • Handling of static and/or static-sensitive components
  • Handling of soft specimens
  • Handling of magnetic specimens
  • Rated Voltage : 3.3V to 5V
  • Rated Current : less than 30mA
  • Length of Wires : approximately 8.5cm
  • Resonant Frequency : 2300Hz
  • Color : Black
  • Wires are tinned with solders
  • Compatible with STEMSEL

Type A&B

  • 15 root signal lines 
  • Terminal spacing of 5.0 MM, the screw hole diameter of 2.5 MM, need to use the width of 2.5 MM for disassembling a screwdrive
  • VGA 3+9 widely use for 3+9/3+7/3+6/3+5/3+4/3+2 VGA cable.
  • Foldable housing that can be reused without tools for easy assembly and disassembly
  • PCB double-layer circuit design, lead-free instrument welding, environmentally friendly copper terminal blocks.

    Type C

  • Techmakers introduces our next generation solderless connectors. Innovative, Rugged design and simple, you just need a scredriver and a fraction of time to terminate VGA connector, saving you both time and money. Optimized for use in any A/V application where VGA interface and controls are still normally used. The contacts and terminal blocks are based on the industry standard, striving to deliver reliable A/V application.

    The following is the VESA standard for wire colors for a standard VGA cable:
    - (V) Vertical: White (or sometimes yellow)
    - (H) Horizontal: Black
    - (B) Blue
    - (G) Green
    - (R) Red
    - Remaining 5 connectors are GROUNDS for each of the above. (Please take note that some of the VGA cables do not use standard wiring coloring. So,  we would suggest you to use multimeter to test the wire and the pin-outs before doing the termination.


    Type D&E

  • DB15 Connectors D-SUB Female 2 Row 15 Pin Plug Breakout Terminals Board Connector Screw Type Black Plastic Cover


    Type: DB15 Terminals Plug Screw Type

    Terminals Pitch:3.81mm , The screw hole diameter is 2mm, need to use the 2mm width screwdriver for disassembling.

    Wire Gauge:19AWG (21 -- 24 AWG will be better, for reference only)


  • Type:Hdmi Male Plug Terminals Connector
  • Suitable Cable Outer Diameter:less than 11mm
  • Terminals Pitch:54mm(need to use with the width less 2MM flathead screwdriver)
  • Suitable Wire Gauge:20-26AWG


  • Current: 10A
  • Volt: 380V
  • Features: Momentary
  • Material: Plastic
  • Item Type: Switches
  • Model Number: LA38-11J
  • Switch Type: Push Button Switch
  • Rated Voltage : 5V-12V
  • Rated Current : 0.10A (Max)
  • Size of LEDs : 3mm
  • Length of Wires : approximately 8.5cm .
  • Wires are tinned with solders
  • Compatible with STEMSEL
  • Origin: China
  • Weight: 55g
  • Dimension: 39.5mm x 20.5mm x 40.7mm
  • Stall Torque: 9.4kg/cm (4.8v); 11kg/cm (6v)
  • Operating speed: 0.20sec/60degree (4.8v); 0.16sec/60degree (6.0v)
  • Operating voltage: 4.8~ 6.6v
  • Gear Type: Metal gear
  • Temperature range: 0- 55deg
  • Servo wire length: 32cm
  • Rotation angle: 180 degree