Subtotal: 0
View Cart
  Minimize
 
Sensirion Temperature/Humidity Sensor
Sensirion Temperature/Humidity Sensor
Item code 28018
Stock 168
Price $29.95
Starting from: 5 pieces $26.96
Starting from: 100 pieces $20.97
Quantity 
Email to a Friend
 

RoHS Compliant

Humidity is notoriously difficult to measure. Some of the scientific and electronic considerations to measuring humidity include: analog to digital interface and external circuitry which might require op-amps or oscillator circuitry; temperature compensation adjustments to calculate dew point; calibration against a known humidity source; mounting, protection and response time in the real-world. If you're interested in the details see Tracy Allen's web site (EME Systems) for his discussion.

The Sensirion SHT1x addresses many of these issues head on. It is a smart sensor for both humidity and temperature, and it comes from the factory in a tiny package that incorporates the analog to digital interface. All that your microcontroller has to do is read out the humidity and temperature values through the two-wire digital serial interface. The only math required is a simple scale and offset. The SHT1x is factory calibrated so that it returns temperature with a resolution of 0.01 degrees Celsius and relative humidity with a resolution of 0.03 percent. The accuracy is better than most other sensors too. Worst-case temperature accuracy is +/- 2 degrees C - but in the "room temperature" range the accuracy better than +/- 1 degree C. The relative humidity sensor is similarly accurate: +/- 3.5% in the range 20% to 80%. This is quite remarkable for a low-cost sensor. Excellent for commercial or home-based projects that require such readings.


Downloads:
Sensirion Kit Documentation (.pdf)
Sensirion SHT1x Documentation and Source Code (.zip)
Sensirion SHT1x Data Sheet (.pdf)
N&V column "Environmental Sensing" #91 (.pdf)
N&V code "Environmental Sensing" #91 (.zip)

Related Products
Sensor Sampler Kit
$179.95
Customers who bought this also bought
Digital Thermometer
$6.95
Starting from: 5 pieces $6.60
PIR Sensor
$9.95
Starting from: 5 pieces $8.96
Starting from: 25 pieces $7.96
TSL230R Light to Frequency Converter
$5.95
Hitachi H48C Tri-Axis Accelerometer Module
$39.95
Starting from: 10 pieces $31.96
XTAL-32.768 KHz
$2.25
Starting from: 5 pieces $2.03
Starting from: 50 pieces $1.91
Starting from: 100 pieces $1.80
Starting from: 250 pieces $1.58
14-inch LCD Extension Cable
$2.50
Starting from: 5 pieces $2.38
Starting from: 10 pieces $1.88
   Print  
Home    |    Contact Us    |    Job Opportunities    |    About Parallax    |    Privacy Statement    |    Terms Of Use    |    Copyright 2008 by Parallax, Inc.