Temperture-Humidity

Temperture-Humidity

Temperature sensors are devices used to measure the temperature of a medium. There are 2 kinds on temperature sensors: 1) contact sensors and 2) noncontact sensors. However, the 3 main types are thermometers, resistance temperature detectors, and thermocouples. All three of these sensors measure a physical property (i.e. volume of a liquid, current through a wire), which changes as a function of temperature. In addition to the 3 main types of temperature sensors, there are numerous other temperature sensors available for use.

Contact Sensors

Contact temperature sensors measure the temperature of the object to which the sensor is in contact by assuming or knowing that the two (sensor and the object) are in thermal equilibrium, in other words, there is no heat flow between them.

Examples (below)

  • Thermocouples
  • Resistance Temperature Detectors (RTDs)
  • Full System Thermometers
  • Bimetallic Thermometers

A Humidity Sensor an instrument used for measuring the moisture content in the atmosphere. Humidity measurement instruments usually rely on measurements of some other quantity such as temperature, pressure, mass or a mechanical or electrical change in a substance as moisture is absorbed. By calibration and calculation, these measured quantities can lead to a measurement of humidity. Modern electronic devices use temperature of condensation (the dew point), or changes in electrical capacitance or resistance to measure humidity differences. The first practical hygrometer was invented by polymath Johann Heinrich Lambert in 1755.

 

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AM2301 Temperature Humidity Sensor

Features:1. 4-pin package 2. Ultra-low power 3. No additional components 4. Excellent long-te..

120.00LE

DHT11 Temp/Humidity Sensor Module 15 - 30 Days

DHT11 Temp/Humidity Sensor Module

DESCRIPTIONThe DHT11 is a basic, ultra low-cost digital temperature and humidity sensor. It us..

45.00LE

DHT22 Temp/Humidity Sensor Module

Description:1.Type:DHT22/AM2302  2.Accuracy resolution:0.1  3.Humidity range:0-100%R..

100.00LE

DS18B20 SOLD OUT

DS18B20

Description: This is the latest DS18B20 1-Wire digital temperature sensor from Maxim IC. Report..

15.00LE

DS18B20 WATERPROOF Temperature ‪‎Sensor

Description: This is the latest DS18B20 1-Wire digital temperature sensor from Maxim IC. Report..

45.00LE

LM35DZ 15 - 30 Days

LM35DZ

Description: The LM35 series are precision integrated-circuit temperature sensors, with an ..

18.00LE

LM35DZ WATERPROOF SOLD OUT

LM35DZ WATERPROOF

This sealed analog temperature probe lets you precisely measure temperatures in wet environment..

55.00LE

MAX6675 K Thermocouple Interface Module

Description:MAX6675 is a 12-bit resolution Serial K-type thermocouple converter, produced by Ameri..

110.00LE

MLX90614 Contactless IR Temperature Sensor Module 15 - 30 Days

MLX90614 Contactless IR Temperature Sensor Module

DescriptionMelexis' MLX90614ESF-AAA is an infrared thermometer designed for non-contact temp..

210.00LE

NTC Thermistor 10K

Description: 10K thermistor with a negative temperature coefficient. Good choice for temp-sensi..

2.00LE

NTC Thermistor 10K waterproof 3950 Type with 1M wire long

DESCRIPTIONNeed to measure something damp? This epoxy-coated precision 1% 10K thermi..

20.00LE

NTC Thermistor 1K

Description: 1K thermistor with a negative temperature coefficient. Good choice for low cost te..

2.00LE

NTC Thermistor 20K 15 - 30 Days

NTC Thermistor 20K

Description: 20K thermistor with a negative temperature coefficient. Good choice for temp-sensi..

1.00LE

NTC Thermistor 50K 15 - 30 Days

NTC Thermistor 50K

Description: 50K thermistor with a negative temperature coefficient. Good choice for low cost t..

1.00LE

NTC Thermistor 5K

Description: 5K thermistor with a negative temperature coefficient. Good choice for low cost te..

1.00LE