Data Sheet
Datasheet SHT20 
www.sensirion.com  Version 3 – December 2011  14/14
Important Notices 
Warning, Personal Injury 
Do not use this product as safety or emergency stop devices or in 
any other application where failure of the product could result in 
personal injury. Do not use  this product  for applications  other 
than its intended and authorized use.  Before installing, handling, 
using or servicing this product, please consult the data sheet and 
application notes. Failure to comply with these instructions could 
result in death or serious injury. 
If  the  Buyer  shall  purchase  or  use  SENSIRION  products  for  any 
unintended or unauthorized application, Buyer shall defend, indemnify 
and  hold  harmless  SENSIRION  and  its  officers,  employees, 
subsidiaries,  affiliates  and  distributors  against  all  claims,  costs, 
damages and  expenses, and  reasonable  attorney  fees  arising  out  of, 
directly  or  indirectly,  any  claim  of  personal  injury  or death  associated 
with such unintended or unauthorized use, even if SENSIRION shall be 
allegedly negligent with respect to the design or the manufacture of the 
product. 
ESD Precautions 
The inherent design  of this  component  causes it to be  sensitive to 
electrostatic discharge (ESD). To prevent ESD-induced damage and/or 
degradation,  take  customary  and  statutory  ESD  precautions  when 
handling this product. 
See application note “ESD, Latchup and EMC” for more information. 
Warranty 
SENSIRION warrants solely to the original purchaser of this product for 
a  period  of  12  months  (one  year)  from  the  date  of  delivery  that  this 
product  shall  be  of  the  quality,  material  and  workmanship  defined  in 
SENSIRION‟s  published  specifications  of  the  product.  Within  such 
period,  if  proven  to  be  defective,  SENSIRION  shall  repair  and/or 
replace this product, in SENSIRION‟s discretion, free of charge to the 
Buyer, provided that: 
  notice  in  writing  describing  the  defects  shall  be  given  to 
SENSIRION within fourteen (14) days after their appearance; 
  such  defects  shall  be  found,  to  SENSIRION‟s  reasonable 
satisfaction,  to  have  arisen  from  SENSIRION‟s  faulty  design, 
material, or workmanship; 
  the defective product shall be returned to SENSIRION‟s factory at 
the Buyer‟s expense; and 
  the warranty period for any repaired or replaced product shall be 
limited to the unexpired portion of the original period. 
This  warranty  does  not  apply  to  any  equipment  which  has  not  been 
installed  and  used  within  the  specifications  recommended  by 
SENSIRION  for  the  intended  and  proper  use  of  the  equipment. 
EXCEPT  FOR  THE  WARRANTIES  EXPRESSLY  SET  FORTH 
HEREIN, SENSIRION MAKES NO WARRANTIES, EITHER EXPRESS 
OR  IMPLIED,  WITH  RESPECT  TO  THE  PRODUCT.  ANY  AND  ALL 
WARRANTIES,  INCLUDING WITHOUT LIMITATION,  WARRANTIES 
OF  MERCHANTABILITY  OR  FITNESS  FOR  A  PARTICULAR 
PURPOSE, ARE EXPRESSLY EXCLUDED AND DECLINED. 
SENSIRION is  only  liable for defects of  this  product arising under the 
conditions of operation provided for in the data sheet and proper use of 
the  goods.  SENSIRION  explicitly  disclaims  all  warranties,  express  or 
implied, for any period during which the goods are operated or stored 
not in accordance with the technical specifications. 
SENSIRION does not assume any liability arising out of any application 
or use  of any  product  or circuit  and  specifically  disclaims  any and all 
liability,  including  without  limitation  consequential  or  incidental 
damages.  All  operating  parameters,  including  without  limitation 
recommended  parameters,  must  be  validated  for  each  customer‟s 
applications  by  customer‟s  technical  experts.  Recommended 
parameters can and do vary in different applications. 
SENSIRION reserves the right, without further notice, (i) to change the 
product specifications and/or the information in this document and (ii) to 
improve reliability, functions and design of this product. 
Copyright
© 2011, by SENSIRION. 
CMOSens
®
 is a trademark of Sensirion 
All rights reserved 
Headquarters and Subsidiaries 
SENSIRION AG 
Laubisruetistr. 50 
CH-8712 Staefa ZH 
Switzerland 
phone:  +41 44 306 40 00 
fax:  +41 44 306 40 30 
info@sensirion.com 
www.sensirion.com 
Sensirion Inc., USA 
phone:  +1 805 409 4900 
info_us@sensirion.com 
www.sensirion.com 
Sensirion Japan Co. Ltd.   
phone:  +81 3 3444 4940 
info@sensirion.co.jp 
www.sensirion.co.jp 
Sensirion Korea Co. Ltd. 
phone:  +82 31 345 0031 3 
info@sensirion.co.kr 
www.sensirion.co.kr 
Sensirion China Co. Ltd. 
phone:  +86 755 8252 1501 
info@sensirion.com.cn 
www.sensirion.com.cn 
Sensirion AG (Germany) 
phone:   +41 44 927 11 66 
info@sensirion.com 
www.sensirion.com 
To find your local representative, please visit www.sensirion.com/contact 










