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Portable digital ph meter (pH / mV / ORP / Temp)
Portable digital ph meter (pH / mV / ORP / Temp)

1, Automatic Calibration, Auto-Buffer Recognition. 2, Message Indicator. 3, pH Range: -2.00~16.00pH; Accuracy: 0.01pH.

Portable digital ph meter

portable meters includes models 220, 221, which used for measuring the acidity and alkalinity or Oxidation-Reduction Potential of liquids.

Feature:

Automatic Calibration

The meter is capable of calibrating up to 3 points using USA or NIST pH standard buffer. From Setup Menu, choose calibration and immerse pH electrode into indicated pH calibration solution, press the ENTER key and meter is automatically calibrated.

Auto-Buffer Recognition

During calibration, if the calibration solution does not match the meter’s indicated value, an ERROR message is displayed. After calibration, the percentage slope of the electrode is displayed before the meter returns to measurement mode. Per the electrode slopes, you can decide whether to replace the pH electrode.

Automatic Temperature Compensation

The meters provide manual or automatic temperature compensation mode for optimum accuracy under variable temperature conditions. Insert the temperature probe into meter, the temperature value will automatically displays on the screen.

Hold Function

To keep the latest measurement on the display, after taking a reading press the HOLD key and the measurement remains on the display, the user can easily view and record data.

Power Monitor

During using, the power chip will continuously monitor the battery level. When the battery is running out of power, the battery icon will disappear from the screen.

Message Indicator

This series meters have message indicator, it can shows many helpful messages like an on-screen manual for easy operation.

Communication Interface and Data Store

The meters have real-time date/clock stamps, the memory stores upto 50 data sets. Press the SAVE key to store the current measured values and  it automatically generates a serial number with time.  All of stored data can then be sent to a computer via the USB port.

Specification:

Model

220

221

pH Range

-2.00~16.00pH

-2.00~16.00pH

pH Accuracy

±0.01pH

±0.01pH

mV/ORP Range

mV:0~±1999mV

ORP: :0~±1999mV

mV/ORP Accuracy

±1mV

±1mV

Temperature Range

0~100oC, 32~212oF

0~100oC, 32~212oF

Temperature Accuracy

±1oC, ±1.8oF

±1oC, ±1.8oF

pH Calibration Points

2 points

2 points

Calibration Solutions

NIST (pH4.00/6.86/9.18) or USA (pH4.01/7.00/10.01)

NIST (pH4.00/6.86/9.18) or USA (pH4.01/7.00/10.01)

Temperature Compensation

0~100oC, 32~212oF, Automatic or Manual

 

0~100oC, 32~212oF, Automatic or Manual

 

Memory

50 Data sets with Date/Time stamping

50 Data sets with Date/Time stamping

Output

USB Communication Interface

USB Communication Interface

Power Requirements

9V/800mA Battery

9V/800mA Battery

Dimensions

185(L)×88(W)×32(H)mm

185(L)×88(W)×32(H)mm

Weight

300g

300g

Accessories:

pH Electrode, Standard pH Buffers, Temperature Probe, Battery. Optional Accessory: Carrying Case. 

Warranty:

One year after purchasing.

PICTURES:

Portable digital ph meter (pH / mV / ORP / Temp)

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