DHT11 DHT22 Temperature And Humidity Sensor Probe
DHT22 Sensor Circuit spec.
DHT11
- Ultra low cost
- 3 to 5V power and I/O
- 2.5mA max current use during conversion (while requesting data)
- Good for 20-80% humidity readings with 5% accuracy
- Good for 0-50°C temperature readings ±2°C accuracy
- No more than 1 Hz sampling rate (once every second)
- Body size 15.5mm x 12mm x 5.5mm
- 4 pins with 0.1" spacing
DHT22 / AM2302 (Wired version)
- Low cost
- 3 to 5V power and I/O
- 2.5mA max current use during conversion (while requesting data)
- Good for 0-100% humidity readings with 2-5% accuracy
- Good for -40 to 80°C temperature readings ±0.5°C accuracy
- No more than 0.5 Hz sampling rate (once every 2 seconds)
- Body size 15.1mm x 25mm x 7.7mm
- 4 pins with 0.1" spacing
More Specifications
| Sensor |
SHT40, SHT45, SHT31, SHT30, SHT35, SHT20, SHT21, DHT20, DHT11, DHT22 etc |
| Cable |
PVC cable, Silicone cable, TPE Flat Jacket cable, PVC Cold-resistant Jacket cable, or another |
| Probe |
Stainless steel probe, Ceramic Case, Brass probe, PE, or customized |
| Connector |
Aviation plug, PH, XH, SM, EL, Pin terminal, Terminal blocks, 0508 terminal, fork terminal, stereo plug, RJ11/12/45 connector, or another |
| Length |
1m, 1.5m, 2m, 5m, 10m, 20m, 100m or customized |
This temperature & humidity sensor is equipped with waterproof probe. It comes with the 4C CMOSens® temperature & humidity sensor chip and the probe has gone through dual waterproof protection test.
The temperature & humidity sensor adopt Sensirion techniques. Except the humidity sensor of capacitive type and the temperature sensor of band gap , contains an amplifier, A/D converter, OTP memory and a digital processing unit. Compared with early SHT1x series and SHT7x series, shows a strong reliability and long-term stability. It can measure surrounding environment temperature and relative air humidity precisely.
The Arduino waterproof temperature & humidity sensor adopts dual waterproof protection techniques. The inner PCB has perfusion and encapsulation protection, and the probe enclosure is made of PE waterproof materials. This is a special waterproof breathable material that allows water molecules to seep in while blocking water droplets from seeping in at the meantime. The sensor won't be damaged even after a long time submerge in the water. There is also a built-in 10k Pull-up resistor and 0.1uf filter capacitor. It enables the sensor to be directly used with the microcontroller such as Arduino. We recommend DFRobot Gravity 4Pin Sensor Adapter convenient.
Application:
1. HVAC
2.Consumer goods
3.Weather stations,
4.Test & measurement
5.Automation Medical
6.Humidifiers
7. Greenhouse
8. Cold-chain transportation
and so on.....
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