Measurement range:

•    PH: 0.00 ~ 14.00 PH
•    ℃ : - 50 ℃ ~ 70 ℃ (58 ℉ ~ 158 ℉) -
•    EC: 0.00 ~ 19.99EC
•    CF: 0.0 ~ 199CF
•    TDS: 10 ~ 19990 PPM
•    ORP: 1 ~ 1999 mv ORP detection is only available for ph-027, but 026 does not have this function

Resolution:

•    PH: PH 0.01
•    ℃, 0.1 ℃ (0.2 ℉)
•    EC: 0.01 EC
•    CF: 0.1 the CF
•    10 PPM TDS:
•    MV: 1 MV     ORP detection is only available for ph-027, but 026 does not have this function

• Accuracy:

•    PH: + / - 0.1 PH
•    ℃, 1.0 ℃
•    EC/CF/TDS: plus or minus 2% F.S
• Mv: + / - 0.1 ℅ f. S + 1 digit   ORP detection is only available for ph-027, but 026 does not have this function
• Automatic temperature compensation: ℃ to 50 ℃
• Working temperature: 0 ℃ to 50 ℃
• Working voltage: DC6V or 4x1.5v (AG13)
• Appearance size: 155mm x 86mm x 22mm
• Packing weight: 1kg

The features :

• Brand New in Box Ready to Be Operated Upon Arrival. 
• The Six - in - one Meter: EC, CF, ℃, ° F, TDS, pH 
• Easy Calibration of pH and TDS with just a mini-screwdriver 
• Automatic Temperature Compensation (without this, pH reading will differ as the Temperature varies) 
• Large, Triple Level Display 
• Caps on Both Sides for Storage and Protection of Electrodes 
• Suction Cups to Attach the Electrodes onto the Inwall of the Vessel, Tank or Reservoir etc. 
• Silicone Skin Case Could Protect the Meter from scratches 
• CE certificate to Offer a safety and Precise Measurement 

Specification: 

• Operating Temp: 0 ℃ to 50 ℃ (32 ° F to 122 ° F) 
• Automatic Temp. Compensation: 0 ℃ to 50 ℃ (32 ° F to 122 ° F) 
• Dimension: 6\" x 3 3/8\" x 7/8\" (155 x 86 x 22mm) 
• Weight: approx. 223 g 

Package: 

• 1 x Six - in - one Meter 
• 2 x the Probes 
• 1 x AC - DC Adaptor 
• 2 x Suction Cups 
• 1 x Mini Screwdriver 
• 1 x Silicone Skin Case
• Product description:
  * three large screens can be displayed simultaneously to measure the PH, temperature,EC,CF and TDS of the solution under test, with complete functions and high precision. 
  * wall-mounted design for easy installation, operation and maintenance. 
  * built-in rechargeable battery, which can be used after power failure. 
  * equipped with BNC standard socket at the same time, it is convenient to replace the electrode around the world. 
  * the instrument is equipped with a silicone protective cover, which is waterproof and dustproof (waterproof grade IP55).
  * the power adapter can be supplied as required by the customer. 
  * the special suitcase with built-in instrument, electrode and all accessories is easy to use and a good product for professionals. 
  
  steps
  1. Remove the electrode cover and plug the pH electrode and temperature electrode into the corresponding electrode socket.
  2. Clean the electrode with distilled water and dry the water on the electrode with filter paper.
  3. Switch ON/OFF.
  4. The pH electrode, temperature electrode and conductance electrode are inserted into the solution under test and stirred gently until the value is stable and the display value is read.
  5. After use, clean the electrode, press ON/OFF switch to turn OFF, and cover with the electrode protective cover.
                     PH calibration
  1. PH electrode in pH 6.86 (temperature at 25 ℃) of mixed phosphates standard buffer solution, gently shake the electrode.
  2. The pH7 potentiometer is adjusted with a small screwdriver until the display value matches the PH value of the standard buffer solution at ambient temperature.
  3. Clean the electrode, then dip the PH electrode into the pH4.01 hydrogen phthalate or the borax standard buffer solution of pH9.18, gently shake the electrode.
  4. The display value should be within the tolerance range compared to the pH value of the buffer solution.
  EC, CF, PPM calibration
  1. Press the MODE key to select \"EC\", insert the instrument conducting electrode into the 12880 manifesting s/cm(12.88EC) standard buffer and gently shake it.
  2. When the value is stabilized, adjust the CAL correction button with a small screwdriver until the display value is 12.88ec. Clean the electrode with distilled water and dry it with filter paper.
  3. Insert the instrument into 1413 beaus /cm (1.41EC) standard solution, and the display value should be within the error tolerance range compared with the standard solution value.
  The temperature calibration
  1. The instrument has been calibrated before leaving the factory. Generally, it is not necessary to calibrate. Temperature sensor in the standard temperature is 25 ℃ in the solution, with a small screwdriver adjustment CAL adjustment knob, the instrument display values conform to the standard values.
  The instrument must be recalibrated under the following circumstances.
  Replace the electrode
  Has been used (or placed) for a long time after calibration
  Electrodes are used very frequently
  The precision of measurement is very high.
  Matters needing attention
  1. During the measurement, the electrode should be gently shaken, and no bubbles should be allowed on the electrode, otherwise the measurement results will be affected.
  2. If the display error is large and the EC value does not return to zero, the EC electrode should be inserted into the alcohol and shaken for 5-10 seconds to clean the electrode.
  Battery installation
     If the backlight brightness decreases significantly, the measurement error is large, or the display value is fuzzy, the device should be charged in time. The device is equipped with intelligent charging function and full of automatic power failure. It is suggested that the charging time should be 2-3 hours. Connect the power adapter for long - term monitoring