Temperature

Temperature Sensors
Sort By:  
Waterproof DS18B20 Digital temperature sensor Resistor (Waterproof DS18B20 temp)
Description:

This is a pre-wired and waterproofed version of the DS18B20 sensor.  Handy for when you need to measure something far away, or in wet  conditions. While the sensor is good up to 125°C the cable is jacketed  in PVC so we suggest keeping it under 100°C. Because they are digital,  you don't get any signal degradation even over 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. They work great with any microcontroller  using a single digital pin, and you can even connect multiple ones to  the same pin, each one has a unique 64-bit ID burned in at the factory  to differentiate them. Usable with 3.0-5.0V systems.

The only  downside is they use the Dallas 1-Wire protocol, which is somewhat  complex, and requires a bunch of code to parse out the communication. If  you want something really simple, and you have an analog input pin,  the TMP36 is trivial to get going.

We toss in a 4.7k resistor, which is required as a pullup from the DATA to VCC line when using the sensor.

Specifications:

Cable specs:

  • Stainless steel tube 6mm diameter by 30mm long
  • Cable is 36" long / 91cm, 4mm diameter
  • Contains DS18B20 temperature sensor
  • If  your sensor has four wires - Red connects to 3-5V, Black connects to  ground and White is data. The copper wire is soldered to the wire  shielding
  • If your sensor has three wires - Red connects to 3-5V, Blue/Black connects to ground and Yellow/White is data

DS18B20 Technical specs:

  • Usable temperature range: -55 to 125°C (-67°F to 257°F)
  • 9 to 12 bit selectable resolution
  • Uses 1-Wire interface- requires only one digital pin for communication
  • Unique 64 bit ID burned into chip
  • Multiple sensors can share one pin
  • ±0.5°C Accuracy from -10°C to 85°C
  • Temperature-limit alarm system
  • Query time is less than 750ms
  • Usable with 3.0V to 5.5V power/data
Contents:
  • 1 x DS18B20 Digital temperature sensor
  • 1 x 4.7k resistor
Resources:

 

R44.90  Inc VAT
DHT11 Temperature and Relative Humidity Sensor Module (DHT11 temp/humid)
Description:

This module can detect humidity and temperature of the surrounding environment. Outputs a digital signal. Has a mounting hole for easy installation. Includes 3 DuPont wires to interface to microcontroller.


Specifications:

Humidity measurement range: 20%~90% RH
Humidity measurement error: ±5% RH
Temperature measurement range: 0~60 Cƒ
Working voltage: 3.3 to 5V
Size: 28 x 12 x 8mm

What's int the box?

1 x DHT11 Temperature and Relative Humidity Sensor Module


Resources:


How to setup a DHT11 with your Raspberry Pi. The resistor is already on the PCB so you can skip the breadboard part
R49.90  Inc VAT
AM2302 DHT22 Temperature And Humidity Sensor Module (DHT22 temp/humid)

Description:

AM2302 Humicap digital temperature and humidity module is a digital output signal containing a calibrated temperature and humidity combined sensor. It uses dedicated digital module capture technology and temperature and humidity sensor technology to ensure that products has high reliability and excellent long-term stability. Sensor includes a capacitive humidity sensing element and a high-precision temperature measurement device, and with a high-performance 8-bit microcontroller connected. Therefore, the product has excellent quality, fast response, anti-interference ability, low cost and other advantages. Ultra-small size, low power consumption, signal transmission distance up to 20 meters. Making it the best choice for all kinds of applications and even the most demanding applications.

Applications:

HVAC (Heating Ventilation Air Conditioning), dehumidifiers, testing and inspection equipment, consumer goods, automotive, automation, data loggers, home appliances, humidity regulator, medical,weather stations, and other related humidity detection control.

Specification:

Dimensions: 40 x 23mm
Weight: 4g
Voltage: 5V
Port: digital two-way single bus
Temperature range: -40 to 80 °C ± 0.5 °C
Humidity: 20 to 90% RH ± 2% RH
Platform: Arduino, SBC

Package includes:

1 x Sensor Module


How to setup a DHT22 with your Raspberry Pi.The resistor is already on the PCB so you can skip the breadboard part.

R125.90  Inc VAT
DS18B20 Temperature Sensor TO-92 (DS18B20 Temperature Sensor)
Specification:

Temperature measurement range: -55°C ~ +125°C
Accuracy: ± 0.5°C
Encapsulation: TO-92

You will need a 4.7k resistor

Package includes:

1 x DS18B20

Adafruit's Raspberry Pi Lesson 11. DS18B20 Temperature Sensing

Temperature measurement range: -55°C ~ +125°C
R19.90  Inc VAT
Grove - Temperature Sensor (Grove temp sensor)
Description:

Grove - Temperature Sensor uses a thermistor to measure ambient temperature. The resistance of thermistor changes based on ambient temperature. This resistance value alters the output of a voltage divider which is measured by an analog input pin and converted to a temperature value. The operating range is -40 to 125°C , with an accuracy of 1.5°C.

For all Grove users (especially beginners), we provide you guidance PDF documents. Please download and read through Preface - Getting Started and Introduction to Grove before your use of the product.

Ready to use with microcontrollers as a digital input. This product also has a compact modular design Plug-and-play grove compatible interface.

Based on the picture above, the grove shield for Arduino is stacked with Seeeduino V4.2. Of course you can use that shield with Arduino board too :)

You can get grove HAT for Raspberry Pi and the Maker Pico board

Features and specifications:

  • Grove compatible interface
  • Arduino library ready
  • Operating voltage: 3.3~5V
  • Zero power resistance: 100 KΩ
  • Resistance Tolerance: ±1%
  • Thermistor: NCP18WF104F03RC (NTC)
  • Nominal B-Constant: 4250 ~ 4299K
  • Operating temperature range: -40°C to 125°C
  • Temperature Accuracy: ± 1.5°C

Packing List:

  • 1 x Grove - Temperature Sensor
  • Grove 4 Pin Buckled 20cm Cable

Resources:

R89.90  Inc VAT
LM35DZ Precision Centigrade Temperature Sensor (LM35DZ temp sensor)
Description:

The LM35-series devices are precision integrated-circuit temperature sensors, with an output voltage linearly proportional to the Centigrade temperature. The LM35 device has an advantage over linear temperature sensors calibrated in Kelvin, as the user is not required to subtract a large constant voltage from the output to obtain convenient Centigrade scaling. The LM35 device does not require any external calibration or trimming to provide typical accuracies of ± ¼ °C at room temperature and ± ¾ °C over a full −55°C to 150°C temperature range. Lower cost is assured by trimming and calibration at the wafer level. The low output impedance, linear output, and precise inherent calibration of the LM35 device makes interfacing to readout or control circuitry especially easy. The device is used with single power supplies, or with plus and minus supplies. As the LM35 device draws only 60 μA from the supply, it has very low self-heating of less than 0.1°C in still air. The LM35 device is rated to operate over a −55°C to 150°C temperature range

Features

1• Calibrated Directly in Celsius (Centigrade)
• Linear 10-mV/°C Scale Factor
• 0.5°C Ensured Accuracy (at 25°C)
• Rated for Full −55°C to 150°C Range
• Suitable for Remote Applications
• Low-Cost Due to Wafer-Level Trimming
• Operates From 4 V to 30 V
• Less Than 60-μA Current Drain
• Low Self-Heating, 0.08°C in Still Air
Non-Linearity Only ±¼°C Typical
• Low-Impedance Output, 0.1 Ω for 1-mA Load

Applications

• Power Supplies
• Battery Management
• HVAC
Appliances

What's in the box:

1 x LM35DZ temperature sensor
R15.90  Inc VAT
Per Page      1 - 6 of 6
  • 1