Best Measurement Computing in 2026

DAQ Module with High Output Current (15 mA Source, 64 mA Sink)

24 Digital I/O Channels and 1 Event Counter Input

Powered by USB Port. No External Power Adapter Required

Free PDF tutorial(more than 22 lessons) and clear listing in a nice package

The most economical kit based on Arduino platform to starting learning electronics for those beginners who are interested.

Lcd1602 module with pin header (not need to be soldered by yourself)

The MEGA complete starter kit with more than 200pcs components, premium quality and 100% Compatible with Arduino IDE

Free pdf tutorial in the cd (33 lessons)

Lcd1602 module and gy-521 sensor module with pin header ( no need to solder by yourself)

Terminal Block Breakout Module - for Arduino MEGA-2560 R3. the item has been soldered and assembled.

Terminal block pitch 3.5mm/0.138", wire size range 26AWG to 16AWG, strip length 5mm, screw M2 steel, pin header and cage copper.

With power on LED indicating. red reset button on the side. with a ICSP adapter connect header.

The item has been soldered and assembled. Support for Raspberry Pi 1 Model B+, Pi 2 Model B, Pi 3 Model B, Pi 3 Model B+, Pi 4 Model B, Pi Zero, Pi Zero-W.

Terminal block pitch 2.54mm/0.1", wire size range 28AWG to 18AWG, strip length 4.5mm, screw M1.6 steel, pin header and cage copper.

FR-4 fiber glass PCB, dual copper layers.

Attention :please do not buy if your microchip ID is not 10 or 15 digit ID numbers. our microchip scanner doesn't support 9 digit ID number .which may result unable to read, know your transponder format is important. also can reader RFID animal ear tag for ISO 11784/5 standard, it is not universal scanner . and do not reader AVID 9 ID numbers microchip

5-10cm reading range;Works with Windows 98 or later software. NOT COMPATIBLE WITH MAC.

mini pet microchip scanner/reader ,134.2Khz ISO 11784/11785 FDX-B reading standard only

CARBON DIOXIDE METER: Autopilot APCEM2 Desktop CO2 Monitor and Data Logger Monitors carbon dioxide, relative humidity, and temperature of your grow room or greenhouse on a clear LED screen

MEMORY: Digital memory chart shows and records stats over an adjustable 24-hour or 7-day period; The trend chart shows variable Min/Hr/Day/Wk for readings of CO2/RH/Temperature

SENSOR & ALARM: 2-channel low drift NDIR gas sensor and audible alarm for low or high CO2 levels

Multi-use temperature data logger,high accuracy sensor,up to 32,000 recording points

A wide measuring range:-22℉~158℉;accuracy:±0.9℉

Built-in USB connector, no cable required to download and manage data

High precision ADS1115 16 Bit 4 Channel Analog-to-Digital ADC Converter

An easy to use I2C ADC Converter, with Programmable Gain Amplifier

Especially a good tool for Raspberry Pi that doesn't come with analog GPIO pins

REUSABLE TEMPERATURE DATA LOGGER. Wide temperature measuring range -22℉~158℉(-30°C ~+70°C). Highly temperature accuracy (±0.9℉). Perfect for the transportation and storage of pharmaceuticals, frozen food, fresh food, vegetable, fish, and so on.

AUTO PDF/EXCEL REPORT. Built-in USB port, generate PDF report automatically after connecting to PC or Android Phone, no software needed. Encryptable via PC.

LCD VISUAL DISPLAY. Press the button to check key information: current temperature value, Max or Min value since recording, Current Date, Logging points.

Applicable to multiple scenarios-Applicable to life science, food cold chain and industrial fields, Complies with FDA 21 CFR Part 11 standard.

Quick Export-Export data in pdf format without software, Obtain data more quickly and conveniently.

Pen Shape Design-The unique pen shape and pen cover can bring IP65 protection grade, waterproof and dustproof. At the same time, it occupies a small area and is easy to insert into the gap.

30 to 130dB measurement range

High accuracy 1.4dB meets ANSI and IEC 61672-1 Type 2 standards

Datalogger date/time stamps and stores readings on an SD card in Excel format for easy transfer to a PC

【Multi-use Data Logger】Adopting 1 internal temperature-humidity sensor and 1 external temperature sensor allows dual measurement methods. It records up to 16,000 temperature points and 16,000 humidity points.

【Wide Temperature Range】Internal and external temperature measuring ranges are -22℉~140 and -40℉~185℉. Max. accuracy reaches ±0.9 ℉(temperature); ±3%RH(humidity).

【Audible and Visual Alarm】Supports up to 2 temperature and 2 humidity alarm thresholds along with buzzer alarm and screen indication alarm.

【Multi-use Data Logger】Adopting one internal and one external temperature sensor to back two methods of measuring temperature, It records up to 16,000 temperature points.

【Wide Temperature Range】Internal and external temperature measuring ranges are -22℉~140℉ (-30℃~60℃) and -40℉~185℉(-40℃~85℃); Maximum accuracy reaches ±0.9 ℉.

【USB Cable】Comes with a USB cable, easy to connect to PC for exporting report in PDF or Excel formats.

This is a breakout board for the very handy 16-Channel Analog/Digital Multiplexer/Demultiplexer CD74HC4067. This chip is like a rotary switch - it internally routes the common pin (COM in the schematic, SIG on the board) to one of 16 channel pins (CHANxx).

It works with both digital and analog signals (the voltage can’t be higher than VCC), and the connections function in either direction.

To control it, connect 4 digital outputs to the chip’s address select pins (S0-S3), and send it the binary address of the channel you want. This allows you to connect up to 16 sensors to your system using only 5 pins!

Applicable to multiple scenarios-Applicable to life science, food cold chain and industrial fields, Complies with FDA 21 CFR Part 11 standard.

Auto PDF Report - Auto PDF Report with Embedded Data no software required to access data file.

Small & Portable - easy to hang. Applications include delivery and distribution of vaccines, blood products, pharmacies, and perishable items.

SD card interface works with FAT16 or FAT32 formatted cards.

3.3V level shifter circuitry prevents damage to your SD card.

Real time clock (RTC) keeps the time going even when the Arduino is unplugged.

Prototype Screw/Terminal Block Shield Board Kit For Arduino MEGA-2560 R3.

FR-4 fiber glass PCB, dual copper layers, size 120mm x 78mm.

Pads grid / pitch 2.54mm / 0.1", hole diameter 0.8mm. Terminal block pitch 3.5mm / 0.138", hole diameter 1.2mm.

Pitch 3.81mm/0.15" screw terminal block.

Terminal block: wire range 26-16AWG, strip length 5mm, Metric M2 slotted screw.

FR-4 fiber glass PCB, dual copper layers.

Storage Temp.: -20~50°C / Storange Humidity: <90%

Operating Temp. : 0~50°C / Operating Humidity: <80%

Sampling Rate : Programmable from 1 second up / LCD Size: 47 x 104mm

Electronics-Salon RPi GPIO Expansion Module, for Raspberry Pi 3, Pi 2, Model B / B+, ZERO and ZERO-W. (For ZERO you must soldered a 2x20pin header in your Raspberry Pi ZERO).

One row GPIO port could change to be three rows GPIO ports

The item has been soldered and assembled, with 4x brass standoffs and 8x screws.

8 Digital/Analog inputs (multi-use)

Decode SPI, I2C, and 23+ more

Digital sample rate up to 500 MS/s, Analog sample rate up to 50 MS/s

PCF8574T IO Expansion Board

The main resources: PCF8574, I2C interface, the 8-bit parallel

Typical applications: for I / O resource constraints the MCU I / O expansion

This item has been assembled, and electrical test passed.

Pitch 3.81mm/0.15" screw terminal block.

FR-4 fiber glass PCB.

This item has been assembled, and electrical test passed.

Pitch 3.81mm/0.15" screw terminal block.

FR-4 fiber glass PCB.

This item has been assembled, and electrical test passed.

Pitch 3.81mm/0.15" screw terminal block.

FR-4 fiber glass PCB.

This item has been assembled, and electrical test passed.

Pitch 3.81mm/0.15" screw terminal block.

FR-4 fiber glass PCB.

This item has been assembled, and electrical test passed.

Pitch 3.81mm/0.15" screw terminal block.

FR-4 fiber glass PCB.

DIN Rail mount 8 Channel 10Amp SPDT Power Relay Module, DC 5V Version.

JS1-5V-F Power Relays. LED indicator for each relay channel. Darlington transistors circuit driving relay, improve the reliability of action.

DIN rail mount carrier: High quality Taiwan DINKLE fireproof nylon material DIN rail mount carrier (not China low quality carrier), can support width 35mm / 32mm / 15mm rail. FR-4 fiber glass dual layers PCB.

DIN Rail mount 8 Channel 10Amp SPDT Power Relay Module, DC 24V Version.

JS1-24V-F Power Relays. LED indicator for each relay channel. Darlington transistors circuit driving relay, improve the reliability of action.

DIN rail mount carrier: High quality Taiwan DINKLE fireproof nylon material DIN rail mount carrier (not China low quality carrier), can support width 35mm / 32mm / 15mm rail. FR-4 fiber glass dual layers PCB.