PH-0131 3-in-1 ORP mV / PH / Temperature Meter Tester + Battery


Model : PH-0131


This advanced pH, ORP and Temperature meter specifically designed to provide precise measurements even under harsh conditions. The controller is EQUIPPED WITH TRIPLE SCALEpHmV and Temp, which GIVES YOU HIGHER MEASUREMENT that reaches up to 0-14.00pH, 0 to ±1999mV, and 0°C to 100°C respectively and are the most important units to you help you determine the status of your tank, pond, pool, etc., certainly an advantage over other measuring device. PH-0131 features the FREE REPLACEABLE PH & ORP ELECTRODES, in case your ORP or pH electrode malfunctions. It precisely determines the pH value, the redox tension and the temperature of the intended solution to be measured to eliminate the adverse effect on fish's immune systems. FULLY EQUIPPED with ATC, automatically adjust itself to correct temperature discrepancies during use. It's important to use a meter with automatic temperature compensation (ATC) to give you the most accurate measurement in any type of environment temperature.


With our portable 3-in-1 measuring device, you can accurately and comfortably measure the redox potential of your aquarium, pond, spa or pools and soil. Use it sea water aquarium for controlling of an ozone addition as well as in sea and fresh water basins. Ideally also to the indirect chlorine measurement in the swimming pool. PH-0131 can be used in Pisciculture or Fish farming and hatchery, wine production and food processing, floristics and orchids breeding, analysis of fluids (ph-value) and other liquids, Koi breeding, Boilers, hemp breeding, water conditioning, laboratories, cooling towers, industrial waste water and other various industrial application.

Enjoy the technologically advance, highly accurate and portable 3-in-1 meter for your aquatic and industrial and needs! Only GAIN EXPRESS offers a FREE ORP ELECTRODE for use in ORP/Redox measurement use. Not just one electrode but TWO FREE electrodes! pH and ORP Electrodes as well as Temperature Probe can be bought individually here at Gain Express!

Buy Now! Top Quality !

: This device is very effective, reliable, easy and safe to use.

  • Uses REPLACEABLE pH electrode & ORP electrode just so you won't have to buy the whole unit when the pH and ORP electrodes are not functioning and a remote stainless temperature probe
  • Equipped with ATC (Automatic Temperature Compensation) that adjust itself automatically to the current temperature
  • With BNC connections for use with a replaceable electrode is also provided for easy connection
  • Provide HIGH & VERY ACCURATE MEASUREMENTS and features a fast response and easy to calibrate with 2 point calibration and measuring range of 0-14 pH with resolution & accuracy of .01 pH.
  • APPROVED BY STRICT QUALITY AND SAFETY STANDARDS which ensures a reliability, durability, long and trouble-free life that can be transported easily
  • A 4-digit LCD display that gives clear readings even in the darkest of environments within seconds!
  • It has an easy to use interface and monitors data continuously thru the large display system in just few seconds.
  • Includes a 9V battery that lasts approximately up to 50 hours.
  • It includes a comprehensive User's manual, which contains instructions and examples on how to best utilize PH-0131.


  • Measuring Range:    
    • pH: 0.00 to 14.00pH    
    • ORP/mV: 0 to ±1999mV    
    • Temp: 0°C to 100°C
  • Accuracy:    
    • pH: 0.01pH    
    • ORP/mV: ±0.1% F·S±1 digit    
    • Temp:±0.4°C
  • Resolution:    
    • pH: 0.01pH    
    • ORP/mV: 1mV    
    • Temp:0.1°C
  • Display:     4-digit LCD
  • Power Supply:     9V Battery (up to 50 hours)
  • Operating Conditions:   
    • Room Temperature: 0°C to 50°C     
    • Humidity: =95%
  • Input resistance:     10¹²O
  • Dimension:     180mm x 83mm x 46mm
  • Weight:    
    • Instrument only: 290g     
    • Gross weight: 570g
  • Calibration: (values refer to a temperature of 25°C):    
    • Single point in neutral buffer solution
    • Double point in neutral buffer solution plus an acid or alkaline buffer solution
    • Offset regulation range: ±1pH
    • Slope: 85 - 100%
  • Temperature  Compensation:    Completely automatic with ATC probe. When probe is off, temperature is fixed at 20°C which can be modified with calibration screw.

Set included:

  • 1 x 3-in-1 ORP mV, PH, TEMPERATURE METER
  • 1 x Comprehensive User's Manual
  • 1 x Mini-screw driver
  • 1 x Detachable Temperature Probe
  • 1 x Replaceable pH Electrode
  • 1 x Replaceable ORP Electrode (FREE only here at Gain Express)
  • 1 x Black protective carrying case   
  • pH6.86 and pH4.01 calibration solutions