
YSIEnvironmental
EcoSense®
pH10 pH/Temperature 
Accurate, economical pen-style measurement 
e EcoSense ® pH10 pen-style instrument provides an ultimate feature 
set over similar competitive models. e pH10 features an easy-to-use 
graphic interface, simple one-hand operation, memory, and low cost 
of ownership over the life of the product. e easy, user-replaceable 
electrode ensures the instrument is always ready for use. e pH10 
measures pH and temperature with the following features: 
• IP-67 waterproof housing
• Automatic calibration and buer recognition
• Automatic temperature compensation
• User-replaceable single- or double-junction electrodes 
Compare to other penstyle instruments and you’ll 
see the advantages of the 
pH10. 
Pure
Data
for a
Healthy
Planet.
®
• 50-set memory (pH, temp, date and time stamp)
• GLP functionality (saves and displays last calibration data)
• 1, 2, or 3-point calibration
• “Hold” feature locks readings on display
• Graphic display with on-screen instructions
e pH10 is designed for quick, accurate results in an economical platform. 
With a one-year instrument warranty and six-month electrode warranty, 
the pH10 will t your needs for an easy-to-use pH instrument. 
Compact design and 
affordable price
Aquaculture, wastewater, and surface water sampling are typical applications for the pH10 pen.
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1 800 897 4151 (U.S.) 
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ireland@ysi.com
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+81 44 222 0009 
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YSIEnvironmental
pH10 (System Specifications)
Temperature  Range  0.0 to 100.0 °C (32.0 to 212 °F)       
  Resolution  0.1 °C (0.2 °F) 
  Accuracy  ±0.3 °C (±0.6 °F)
pH  Range  0.00 to 14.00 units       
  Resolution  0.01 units 
  Accuracy  ±0.1 unit within 10 °C of calibration, ±0.2 unit within 20 °C 
Additional Technical Specifications
Operating range  0.0 to 50.0 °C (32.0 to 122.0 °F)
Water resistance  IP-67 waterproof case
Weight with batteries  105 grams (3.7 ounces)
ATC Probe  ermistor, 10kΩ / 25°C
Battery  Four LR44 alkalines included with purchase
Battery life  200 hours or greater (low battery indicator)
pH temp compensation  Auto 0.0 to 100.0 °C (32.0 to 212 °F)
pH buffer recognition  USA (4.01, 7.00, & 10.01) or NIST (4.01, 6.86, & 9.18)
pH calibration temp  0.0 to 60 °C (32.0 to 140.0 °F)
pH offset recognition  +90 mV at pH 7.00 or +98.3 mV / -81.7 mV at pH 6.86
pH slope recognition  +30% at pH 4.00, 4.01, 9.18, or 10.01 
Memory  Non-volatile; 50 sets (pH, temperature, date and time stamp); erase all data function
pH10 Ordering Information
pH10  pH10 instrument (includes 605113 pH electrode, batteries, instruction manual)
605113  Single-junction pH electrode (replacement)
605116  Double-junction pH electrode
605129  So, black carrying case with shoulder strap
3824  Assorted pH buers case (6 pints - 2 of each buer 4, 7 10)
605188  Replacement batteries (4 LR44 alkaline batteries)
YSI India 
+91 989 122 0639 
sham@ysi.com
YSI Australia 
+61 7 390 17223 
acorbett@ysi.com
ISO 9001 
ISO 14001
Who’s Minding the Planet?, EcoSense, 
and Pure Data for a Healthy Planet are 
trademarks of YSI Incorporated. 
©2009 YSI Incorporated 
   Printed in USA 1209 W26-02 
YSI incorporated 
     Whoʼs Minding 
           the Planet?
®
605116 double-junction 
electrode. 
605188 replacement batteries. 
605129 soft carrying case. 
3824 assorted pH buffers 
case. 
605113 single-junction 
replacement electrode.