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INTRODUCTIONWe can divide temperature measurement in to two types: contact and non-contact. Contact measurement can only accurately measure temperature when the testing object and the sensor reach thermal equilibrium. This can mean longer response times and reading inaccuracies offset by ambient temperature. By contrast, non-contact measurement uses infra-red radiation to measure the temperature and does not require a direct touch. Additionally, this method of measurement can be read quickly and accurately.
In recent years non-contact measurement methods have been used for medical, environmental monitoring, home automation, automotive electronic, aerospace and military applications.
Our latest infrared temperature measurement module is the MLX90614. This module measures the surface temperature by detecting infrared radiation energy and wavelength distribution. The IR temperature probe consists of an optical system, photoelectric detector, amplifier, signal processing and output module. The optical system collects the infrared radiation in its field of view and the infrared radiation energy is converted in to corresponding electrical signals when converging on the photoelectric detector. After being processed by the amplifier and signal processing circuit, the signal is converted in to a temperature value. The MLX90614 is self calibrating and has a low noise amplifier integrated in to the signal processing chip. The chip itself is a 17 bit ADC and DSP device, giving accurate and reliable results.
SEN0206 (MLX90614-BCC), due to its large field of view (FOV = 35°), is more suitable for commercial application. We recommand SEN0263 (MLX90614-DCI) for industrial applications. It has a longer distance range.
Type Selection of Temperature Sensors Name Gravity: I2C Non-contact IR Temperature Sensor For Arduino Gravity: Analog LM35 Temperature Sensor For Arduino Gravity: Waterproof DS18B20 Sensor Kit
Gravity: DS18B20 Temperature Sensor
Gravity: Analog High Temperature Sensor SKU SEN0226 DFR0023 KIT0021 DFR0024 SEN0198 Operating Voltage 3.3V/5V 3.3V/5V 3.0V~5.5V 3.3V~5V 3.3V~5.5V Operating Current 2.7μA 2.7μA <3μA <3μA 2.8μA Operating Temperature -40℃～85℃ -40℃～150℃ -55℃～125℃ -55℃～125℃ 30℃～350°C Range of temperature measurement 0℃～65℃ 0℃～100℃ -55℃～125℃ -55℃～125℃ -55℃～125℃ Precision of temperature measurement 0.01℃ 0.5℃ 0.5℃ 0.5℃ 0.5℃ Temperature deviation ±0.5℃ ±0.5℃ ±0.5°C ±0.5℃ ±0.5℃ Dimension 30*22(mm) 30*22(mm) 33*22(mm) 22*32(mm) 42*32*18(mm) Interface Gravity-IIC Gravity-analog Gravity-digital Gravity-digital Gravity-digital Data type Digit Digit Digit (unibus) Digit (unibus) analog Price $8.80 $4.50 $8.00 $4.00 $16.00 Brief introduction
BMP280 Barometer sensor supports Arduino and can measure both temperature and atmospheric pressure.
It can be applied to enhance GPS navigation & coordinate with IMU sensor to realize indoor and outdoor navigation. Compared to the last generation BMP180 barometer sensor, it has a lower power consumption, higher resolution and higher sampling frequency.
Application: Enahnced GPS navigation (e.g. time-to-first-fix improvement, dead-reckoning, slope detection) Indoor navigation (floor detection, elevator detection) Outdoor navigation, leisure and sports applications Weather forecast Health care applications (e.g. spirometry) Vertical velocity indication (e.g. rise/sink speed)
$A Temperature Sensor can be used to detect ambient air temperature, the output voltage is proportional to temperature. It has good linearity and high sensitivity.
Application:Medical treatments Personal controls Industrial controls Aeronautics and astronautics.
Waterproof temperature sensor DS18B20 is widely used in many fields, such as soil temperature measurement, hot tank temperature control etc. It supports multipoint measurement.
Constant temperature control Industrial system Consumer electronics Thermistors Refrigerators Barns Tanks Telecommunication rooms Power communication rooms
A Temperature Sensor can be used to detect ambient air temperature. It can be connect to three-wire in parallel to achieve multipoint temperature measurement.
Application: Constant temperature control Industrial system Consumer electronics Thermistors Refrigerators Barns Tanks Telecommunication rooms Power communication rooms Cables etc.
It used a PT100 resistance type high temperature probe to measure a temperature range between 30-350°C.
Application: Especially for high precision of temperature measurements. Medical treatments Motors Industrials Temperature counts Resistance counts
Name Gravity: i2C BMP280 Barometer Sensor Infrared Thermometer Module Gravity:SHT1x Humidity and Temperature Sensor
Gravity: DHT11 Temperature Humidity Sensor For Arduino
DHT22 Temperature and Humidity Sensor SKU SEN0206 SEN0093 DFR0066 DFR0067 SEN0137 Operating Voltage 3.3V~5V 3V~5V 3.3V~5V 3.3V~5V +5V Operating Current 1.2mA 4mA~9mA 2μA 0.5mA~2.5mA 1.5mA Operating Temperature -40℃～125 ℃ -10℃~50℃ -40℃~128.8℃ 0℃～50℃ -20℃-80℃ Range of temperature measurement -70.01℃～382.19℃ -33℃～220℃ -40℃~128.8℃ 0℃～50℃ -40℃-80℃ Precision of temperature measurement 0.5℃ 2℃(full range) 0.5℃ 2℃ Temperature deviation ±0.5℃ ±0.6℃ ±0.4°C ±0.1℃ ±0.5℃ Dimension 31.5*18(mm) 12*13.7*35(mm) 32*27(mm) 22*32(mm) 22*32(mm) Interface Gravity-IIC Digitalx3 Gravity-2-wire digital Gravity-digital Gravity-digital Data type Digit Digit Digit (unibus) Digit (unibus) Digit (unibus) Range of humidity measurement NA NA 0-100%RH 20-90%RH 0-100%RH Humidity deviation NA NA ±4.5%RH ±5%RH ±2%RH Price $16.00 $49.00 $21.05 $5.20 $9.50 Brief introduction
non-contact measurement uses infra-red radiation to measure the temperature and does not require a direct touch. Additionally, this method of measurement can be read quickly and accurately. This module has a FOV of 35° Wave length 5.5um-14um
Home automation Automobile electronics
It is a long distance thermometer specially designed for a high sensitivity, high accuracy, low noise and low power consumption. Wave length:5um-14um This module has a FOV of 26.6°x 2 = 53.2°
Medical equipment Fire alarm systems telecommunications
It consists of 1 capacitive humidity module and 1 energy gap temperature module, perfect integration of 1 14bit A/D converter and 1 2-wire digital interface.
CMOSens technology makes it of advantages such as low power consumption, fast response, strong anti-jamming capacity etc.
Humidity regulator Dehumidifier
Tests and measurements
This sensor includes a resistive element and a sense of wet NTC temperature measuring devices. It has excellent quality, fast response, anti-interference ability and high cost performance advantages. Its signal transmission distance up to 20 meters. These features make it a variety of applications and even the most demanding applications.
Medical equipment HVAC
Dehumidifier Tests and measurements
It contains a resistive element and a sense of wet NTC temperature module. Compared to DHT11, it has smaller humidity deviation, faster response, stronger anti-interference ability and higher cost performance
Medical equipment HVAC
Meteorology Humidity regulator Dehumidifier
Tests and measurements
Automobile Automatically control
- Model: MLX90614-DCI
- Operating Voltage: 3.3V - 5V
- Operating Current: 1.2mA
- Temperature: -70.01℃ to +382.19℃, (0.01 ℃ resolution)
- Interface Type: I2C
- Interface Line Sequence: VCC, GND, SCL, SDA
- FOV: 35°
- Dimensions: 31.5*18 mm/1.24 x 0.7 inches
- Weight: 15g
- on-contact IR Thermometer Sensor x1
- JST PH2.0 4-Pin cable x1