The SparkFun BME280 Atmospheric Sensor Breakout is the easy way to measure barometric pressure, humidity, and temperature readings all without taking up too much space. Basically, anything you need to know about atmospheric conditions you can find out from this tiny breakout. The BME280 Breakout has been designing to be used in indoor/outdoor navigation, weather forecasting, home automation, and even personal health and wellness monitoring.

The onboard BME280 sensor measures atmospheric pressure from 30kPa to 110kPa as well as relative humidity and temperature. The breakout provides a 3.3V SPI interface, a 5V tolerant I²C interface (with pull-up resistors to 3.3V), takes measurements at less than 1mA, and idles less than 5µA. The BME280 Breakout board has 10 pins, but no more than six are used at a single time. The left side of the board provides power, ground, and I²C pins. The remaining pins which provide SPI functionality and have another power and ground, are broken out on the other side.

Features:

1. Ultra-low power consumption.
2. Low noise measurements.
3. Factory-calibrated.
4. Includes temperature sensor.
5. Low-profile with a small footprint.

Package Includes:

1 x SparkFun Atmospheric Sensor Breakout – BME280

This is NTC MF52 100K ohm 3950 Thermistor 1%. These thermistors are widely used as electronic circuit components for instrument line temperature compensation and temperature difference cold junction temperature compensation, etc.
High Sensitivity: High sensitivity and wide operating temperature range.
MF52 100K ohm 3950 thermistors are able to measure the gap temperature than other thermometers can’t measure.
and it is very easy to use to process into complex shapes.

Specifications and Features:

1. Model: MF52 3950
2. Resistance Value: 100K
3. Accuracy: 1%
4. Small Size
5. Wide operating temp range

Package Includes:

1 x NTC MF52 100K ohm 3950 Thermistor 1% (Pack of 5)

B3950 10K NTC waterproof High precision thermistor temperature Sensor 5 x 25mm with XH2.54 Connector can be used to measure temperature in a variety of applications.

The sensor has stainless steel 5 x 25mm tip with an XH2.54 connector with a 4-meter cable. It is Negative thermal coefficient (NTC) will decrease. But the formula in practice is not linear,  so sometimes an accurate table of measurements is better than the linear formula. These measurements can usually be found in the datasheet that accompanies the thermistor.

Specifications and Features:

1. Probe sheath material: Stainless Steel
2. Style: B3950 10K
3. Resistance value: 10K ± 1%
4. Measurement range: -20 to 105 °C
5. Cable Length: 4-meter
6. Size of probe: 5 x 25 mm
7. Output wires: 2
8. Typical Dissipation Constant: 5mW/ °C
9. Probe insulation: >100MOhm

Package Includes:

1 x B3950 10K NTC Thermistor Temperature Sensor 5*25mm with XH2.54 Connector with 4-meter Cable

The AHT20 is a high-precision but low-cost temperature and humidity sensor, which is equipped with an improved MEMS semiconductor capacitive humidity sensor element. It features a standard I2C interface and a wide voltage supply of 2V – 5V. And with the simple peripheral circuit, it performs stably even in harsh environments in the measuring range of -40~＋85℃.

This sensor can be widely used for measuring the environmental temperature and humidity of home electronic equipment, the temperature and humidity of automobiles, and so on.

Features:

Features & Specifications:

B3950 10K NTC waterproof High precision thermistor temperature Sensor 5 x 25mm with XH2.54 Connector can be used to measure temperature in a variety of applications.

The sensor has stainless steel 5 x 25mm tip with an XH2.54 connector with a 0.5-meter cable. It is Negative thermal coefficient (NTC) will decrease. But the formula in practice is not linear,  so sometimes an accurate table of measurements is better than the linear formula. These measurements can usually be found in the datasheet that accompanies the thermistor.

Specifications and Features:

1. Probe sheath material: Stainless Steel
2. Style: B3950 10K
3. Resistance value: 10K ± 1%
4. Measurement range: -20 to 105 °C
5. Cable Length: 0.5 Meter
6. Size of probe: 5 x 25 mm
7. Output wires: 2
8. Typical Dissipation Constant: 5mW/ °C
9. Probe insulation: >100MOhm

Package Includes:

1 x B3950 10K NTC Thermistor Temperature Sensor 5*25mm with XH2.54 Connector with 0.5 Meter Cable