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YSI EcoSense ORP15A ORP Pen

YSI EcoSense ORP15A ORP Pen


The YSI EcoSense ORP15A offers accurate, low-cost measurement of ORP (absolute and relative) along with temperature.


  • IP-67 Waterproof housing
  • Replaceable electrodes
  • Automatic calibration & buffer recognition
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Why Buy From Fondriest?


The YSI EcoSense ORP15A offers accurate, low cost measurement of ORP (absolute and relative mV) and temperature. The pen-style instrument is ideal for food (such as vegetable washing and sanitizers), swimming pools, wastewater, and aquaculture.


  • Waterproof IP-67 case
  • 1-year warranty; 6-month electrode warranty
  • Absolute and relative readings
  • Replaceable electrodes
  • 50-set memory
  • Low battery indicator
  • Hold feature locks readings on display
  • CE compliance
  • >200 hour battery life with low battery indicator
Notable 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)
  • Offset Range: User input fromm -999 to +999 mV
  • ATC Probe: Thermistor
  • Battery: Four LR44 alkalines included with purchase
  • Battery Life: Approximately 40 hours (low battery indicator)
  • Memory: Non-volatile; stores 50 sets (absolute and relative ORP, temperature, date and time stamp)
What's Included:
  • (1) YSI EcoSense ORP15A pen
  • (4) A76 batteries
  • (1) Operations manual
Image Part # Product Description Price Stock Order
YSI EcoSense ORP15A ORP Pen ORP15 EcoSense ORP15A waterproof ORP & temperature pen
Usually ships in 3-5 days
Image Part # Product Description Price Stock Order
Fondriest Environmental 200mV ORP Standards FNOR4200-P ORP standard, 200mV, 500mL bottle
In Stock
YSI 580 Soft-Sided Carrying Case 605129 580 soft-sided carrying case, pH10A, ORP15A & EC30A
Usually ships in 3-5 days
YSI ORP15A Replacement Sensor Cap 606117 Replacement sensor cap, ORP15A
Usually ships in 3-5 days
YSI ORP15A Replacement ORP Electrode 606112 Replacement ORP electrode, ORP15A
Usually ships in 3-5 days
YSI Replacement Battery Pack Kit 605118 Replacement battery pack kit, pH10A & ORP15A
Usually ships in 3-5 days

YSI EcoSense ORP15A ORP Pen Reviews

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Questions & Answers

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How big is the display on the pen?
The YSI EcoSense ORP Pen has a 98x64 graphic LCD display.
What do I use to calibrate this?
The EcoSense ORP Pen can be calibrated in any known ORP or Zobell solution.

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