DS18B20 Temperature Sensor is suitable for the cold storage, granaries, storage tanks, telecommunications room, electric power room, cable trough, and other temperature measurement and control areas; bearing, cylinder, textile machinery, air conditioning, and other small space industrial equipment temperature and control; , Refrigerator, freezer, and low-temperature drying oven, etc. heating/cooling pipe calorie measurement, central air conditioning household thermal energy measurement and industrial temperature measurement and control and Many more..

This is DS18B20 Water Proof Temperature Probe – Black (1m) Original Chip which is based on the DS18B20 sensor.

It is very handy for when you need to measure something far away, or in wet conditions. Because they are digital, you don’t get any signal degradation even over a long distances.

These 1-wire digital temperature sensors are fairly precise (±0.5°C over much of the range) and can give up to 12 bits of precision from the onboard digital-to-analog converter.

This is DS18B20 Water Proof Temperature Probe – Black (1m) Original Chip which is based on the DS18B20 sensor.

It is very handy for when you need to measure something far away, or in wet conditions. Because they are digital, you don’t get any signal degradation even over a long distances.

These 1-wire digital temperature sensors are fairly precise (±0.5°C over much of the range) and can give up to 12 bits of precision from the onboard digital-to-analog converter.

DS3231 RTC  is a Precise Real-Time Clock Module with 32Kbit EEPROM and a built-in 10-bit temperature sensor having a resolution of 0.25C.

The DS3231 RTC module Precise Real-Time Clock Module is a low-cost, extremely accurate I²C real-time clock (RTC) with an integrated temperature-compensated crystal oscillator (TCXO) and crystal. The device incorporates a battery input and maintains accurate timekeeping when the main power to the device is interrupted.

The integration of the crystal resonator enhances the long-term accuracy of the device as well as reduces the piece-part count in a manufacturing line. The ds3231 Arduino is available in commercial and industrial temperature ranges and is offered in a 16-pin, 300-mil SO package.

DFRobot Gravity: analog electrical conductivity meter V2 is specially used to measure the electrical conductivity of an aqueous solution, and then to evaluate the water quality, which is often used in water culture, aquaculture, environmental water detection, and other fields. This meter product, as an upgraded version of the electrical conductivity meter V1, greatly improves the user experience and data precision. It supports 3~5v wide voltage input, and is compatible with 5V and 3.3V main control board; The output signal filtered by hardware has low jitters; The excitation source adopts AC signal, which effectively reduces the polarization effect, improves the precision, and prolongs the life of the probe; The software library uses two-point calibration method, and can automatically identify standard buffer solution, so simple and convenient.

The Advance Technologies EMG Muscle Sensor V3.0 With Cable And Electrodes will measure the filtered and rectified electrical activity of a muscle outputting 0-Vs Volts depending on the amount of activity in the selected muscle, where Vs signifies the voltage of the power source. Power supply voltage: min. +-3.5V.

This Muscle Sensor v3 from Advancer Technologies measures, filters, rectifies, and amplifies the electrical activity of a muscle and produces an analog output signal that can easily be read by a microcontroller, enabling novel, muscle-controlled interfaces for your projects.

The Advance Technologies EMG Muscle Sensor V3.0 With Cable And Electrodes will measure the filtered and rectified electrical activity of a muscle outputting 0-Vs Volts depending on the amount of activity in the selected muscle, where Vs signifies the voltage of the power source. Power supply voltage: min. +-3.5V.

This Muscle Sensor v3 from Advancer Technologies measures, filters, rectifies, and amplifies the electrical activity of a muscle and produces an analog output signal that can easily be read by a microcontroller, enabling novel, muscle-controlled interfaces for your projects.

Features :

1. Fully Compatible with 10/100/1000Base-T Networks
2. Integrated MAC and 10Base-T PHY
3. Supports One 10Base-T Port with Automatic Polarity Detection and Correction
4. Supports Full and Half-Duplex modes
5. Automatic Programmable Retransmit on Collision
6. Programmable Padding and CRC Generation
7.  Automatic Rejection of Erroneous Packets
8. SPI Interface with Clock Speeds Up to 20 MHz
9. Chipboard ENC28J60/SS.
10. The board 25MHZ crystal.
11. The network interface board HR911105A.
12. 5 V power supply pin.
13. Stable performance.
14. For Arduino, SPI, AVR, PIC, LPC, STM32.