Fibre glass reinforced, 1 1/4" cut off wheels/disc for dremel/rotary tools 10pcs for 250php

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Rotary Wirewound Precision Potentiometer Pot 10 Turns

Model:
3590S-2-102L 1K Ohm Rotary Wirewound Precision Potentiometer Pot 10 Turns
3590S-2-502L 5K Ohm Rotary Wirewound Precision Potentiometer Pot 10 Turns
3590S-2-103L 10K Ohm Rotary Wirewound Precision Potentiometer Pot 10 Turns

Resistance: 1K,5k or 10K Ω
Turns:10turns
Resistance Tolerance:±5 %
Independent linearity accuracy:±0.25% ;
Power: 2W
Total Rotational Angle :3600±5°
Operating Temperature Range : +1℃ - +125
Storage temperature : -55℃ - +125℃
Rotational Life:1,000,000 RMP
Shaft diameter : 6.3mm
Mounting Hole:10mm

Package Includes:
1 x 1k or 5k or 10K Ohm Rotary Wirewound Precision Potentiometer

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AT24C256 Serial EEPROM I2C Interface EEPROM Data Storage Module

Description:
1. 8P chip holder on the board, mounted AT24C256 chip;
2. Pin head provide power supply, power indicator on the board;
3. Pull-up resistors request by I2C communications
4. All pins are drawn and marked, enter the address and write protect jumper pins can be directly set up;
5. PCB board size: 36.5 (mm) x12 (mm)

Package Includes:
1 x AT24C256 Serial EEPROM I2C Interface EEPROM Data Storage Module

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CH340G RS232 Upgrade to USB TTL Auto Converter Adapter

Product Description:
TTL upgrade module
Dual power management system,
Built-in real PPTC over current
Gold plated USB interface
500mA resettable fuse
3.3v 5v can really switch
3.3v transformer comes true green data reception indicator
Multifunction CTS interface, dual protection circuit
Top military Black Motherboard
Professional blue power indicator light,
Red data transmission indicator,
Super stable master chip,
Multifunction RTS interface,
Multifunction 5P pins
500mA resettable fuse
3.3v 5v can really switch
with 3.3v transformer
green data reception indicator
Multifunction CTS interface, dual protection circuit
Top military Black Motherboard
Professional blue power indicator light,
Red data transmission indicator,
Super stable master chip,
Multifunction RTS interface,
Multifunction 5P pins

Package Includes:
1 x CH340G RS232 Upgrade to USB TTL Auto Converter Adapter

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W25Q32B Memory Module High Capacity Precise SPI Interface Flash Memory:32M

Features:
Flash Memory:32M
Working voltage:2.7V-3.6V
Active current:4mA
PCB size:21*11mm

High Performance Serial Flash
104MHz Dual SPI/80MHz Quad SPI clocks
208/320MHz equivalent Dual/Quad SPI
40MB/S continuous data transfer rate
Up to 8X that of ordinary Serial Flash
More than 100,000 erase/program cycles
More than 20-year data retention
-40℃ to +85℃ operating range

Package Includes:
1 x W25Q32B Memory Module

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Vertical Liquid Water Level Sensor PP Float Switch


Description:
A float switch is a device used to sense the level of liquid within a tank. The switch may actuate a pump, an indicator, an alarm, or other device. It can be easily converted from normally open to normally close by inverting the float. Note: because the current that the switch can carry is much little(0.5A), you must use a relay or contactor when it is connected by a load, relay and contactor are not included here.

Product Name: Water Level Sensor
Contacts: NO+NC
Max Contact Rating: 10W
Max Switching Voltage: 100V DC
Max Switching Current: 0.5A
Max Breakdown Voltage: 220V DC
Max Carry Current: 1.0A
Max Contact Resistance: 100mO
Temperature Rating: -10 ~ +60 °C / +85 °C
Float Ball Material: PP
Float Ball Size(Approx): 21.5 x 23.7mm / 0.8" x 0.933"(L*D)
Thread Dia(Approx) : 8.7mm / 0.3"
Hex Nut Size(Approx) : 16.5mm /0.65"
Bottom Clip Dia(Approx) : 20mm / 0.8"
Body Total Length : 100mm / 3.9"
Color : White & Black
Net Weight: 19g

Package Includes:
1 x Vertical Liquid Water Level Sensor PP Float Switch

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52mm PP Liquid Water Level Sensor Horizontal Float Switch for Tank Pool Gardening

Features:
A float switch is a device used to sense the level of liquid within a tank, it may actuate a pump, an indicator, an alarm, or other device.
This small size, low-cost switch can be used in most liquid environments. It can also be easily converted from normally open to normally close by inverting the float

Application:
Use them with hydroponics, saltwater tank, freshwater tank, gardening, aquariums for power head control, pet bowls, fish tanks, filtration, heating.

Product Specification:
Contract rating(Max):10W
Switching voltage(Max):100VDC
Switching current(Max):0.5A
Breakdown voltage(Max):220VDC
Carry current(Max):1.0A
Contract resistance(Max):100 OHM
Temperature rating:-10~+85°C
Cable length:30cm
Float Length:67mm
Material: PP

Package Includes:
1 x Float Switch blue

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Optical Fingerprint reader Sensor Module sensors All-in-one For Arduino Lock

Description:
Supply voltage: DC 3.6 ~ 6.0V / 3.3V
Supply Current: Current: <120mA
Peak current: <140mA
Fingerprint image time: <1.0 seconds
Window size: 14 ╳ 18 mm
Matching mode: Match mode (1:1)
Search mode (1: N)
Signature File: 256 bytes
Template files: 512 bytes
Storage capacity: 1,000
Safety level: five (from low to high: 1,2,3,4,5)
False Accept Rate (FAR): <0.001% (security level 3)
False Reject Rate (FRR): <1.0% (security level 3)
Search time: <1.0 seconds (1:500, the mean)
PC Interface: UART (TTL logic level) or USB2.0 / USB1.1
Communication baud rate (UART): (9600 ╳ N) bps where N = 1 ~ 12 (default value N = 6, ie 57600bps)
Working environment:
Temperature: -20 ℃ - +50 ℃
Relative Humidity: 40% RH-85% RH (non-condensing)
Storage environment:
Temperature: -40 ℃ - +85 ℃
Relative humidity: <85% H (non-condensing)
Dimensions (L ╳ W ╳ H):
Split: Fingerprint sensor: 56 ╳ 20 ╳ 21.5mm
-One: 56 ╳ 20 ╳ 21.5mm

Hardware connection:
Module via a serial communication interface, directly with 3.3V or 5V power microcontroller communication: Module data transmission feet (2
Foot TD) connected to the data bit machine receiving end (RXD), data receiver module feet (3 feet RD) connected to the data sender bit machine (TXD).
For the RS-232 level (for example: PC machine) for PC communication, increase the level conversion between the module and the host computer
Circuitry (e.g.: MAX232 circuit)

Package Includes:
1PCS x Optical Fingerprint reader Sensor Module sensors All-in-one For Arduino Lock

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KS0108 128x64 Graphic LCD Blue Backlight for EasyPIC5 LCM12864C

FEATURES:

Display construction------------------12864B DOTS
Display mode---------------------------STN
Display type-----------------------------Positive Transmissive
Viewing direction----------------------6 o' clock
Operating temperature---------------Indoor
Driving voltage--------------------------Single power
Driving method-------------------------1/33 duty, 1/6bias
Type----------------------------------------COB(Chip On Board)
Number of data line--------------------8-bit parallel
Connector---------------------------------Pin

MECHANICAL DATA:

ITEM WIDTH HEIGHT THICKNESS UNIT
Model size 93.0 70.0 12.7(max) mm
Viewing area 72.0 40.0 - mm
DOT(Size) 0.48 0.48 - mm
DOT(Pitch) 0.52 0.52 - mm

Diamenter of mounting hole 2.7 mm
Weight About 50g

VDD(Operating Voltage) 5.5V
Vlcd (LCD Voltage) 3.0-7V

Package Includes:
1 x KS0108 128x64 Graphic LCD Blue Backlight for EasyPIC5 LCM12864C

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NE5532 DIP-8 Dual Low Noise Op-Amp IC

Description:
The NE5532, NE5532A, SA5532, and SA5532A devices are high-performance operational amplifiers combining excellent DC and AC characteristics. They feature very low noise, high output-drive capability, high unity-gain and maximum-output-swing bandwidths, low distortion, high slew rate, input protection diodes, and output short-circuit protecting. These operational amplifiers are compensated internally for unity-gain operation. These devices have specified maximum limits for equivalent input noise voltage.

Datasheet:
http://www.ti.com/lit/ds/symlink/ne5532.pdf

Package Includes:
1 x NE5532 DIP-8 Dual Low Noise Op-Amp IC

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AS15-F AS15F Integrated Circuit LCD Screen Power Driver IC Chip TQFP-48 E-COMS

Package Includes:
1 x AS15-F AS15F

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