YSI EcoSense pH100M pH Meter

The YSI EcoSense pH100M handheld instrument provides accurate and repeatable pH, mV, and temperature measurements in an affordable format.


  • Rugged, waterproof, field-worthy case
  • Waterproof micro-USB port for transferring data to PC; no software required
  • Holds 250 data sets; no need to write down data
List Price $390.00
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The YSI EcoSense instruments provide accurate data in the most affordable format. The "M" stands for memory and the instruments feature a real-time clock, larger memory and simple data transfer to a PC with a built-in USB port. The pH100M is easy-to-use, field-worthy and provides accurate and repeatable measurements. The pH100M measures pH, mV/ORP and temperature with the following features:

  • Rugged, waterproof, field-worthy case. IP-67 rated.
  • Waterproof micro-USB port for transferring data to PC; no software required.
  • Holds 250 data sets; no need to write down data.
  • Real-time clock for date/time stamp of saved data.
  • User-selectable re-calibration prompt provides reminder to calibrate.
  • Automatic buffer recognition (US or NIST buffer sets).
  • Automatic or manual temperature compensation.
  • 1-year instrument warranty; 6-month electrode warranty.
  • 1 and 4-meter field cables available; lab pH and ORP electrodes available.
  • Displays electrode efficiency.
  • Autolock mode holds stable readings on display.

The pH100M is designed for quick, accurate measurements in an economical platform. Easy-to-use, waterproof and backed by a 1-year warranty, the pH100M is ideal for a wide range of applications.

  • (1) EcoSense pH100M meter
  • (1) USB cable
  • (1) 9V alkaline battery
  • (1) Operations manual
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YSI EcoSense pH100M pH Meter
EcoSense pH100M pH meter (cable/sensor sold separately)
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YSI EcoSense pH100M pH Meter
EcoSense pH100M pH meter kit: includes display, probe with 1m cable, & carrying case
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YSI EcoSense pH100M pH Meter
EcoSense pH100M pH meter kit: includes display, probe with 4m cable, & carrying case
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