PH/mV Meter Portable Model 220, 221

Portable pH meter used for measuring the acidity, alkalinity and temperature of liquids.

Automatic Calibration

220 pH-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 calibration solution, press 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 decides whether to replace the pH electrode.

Automatic Temperature Compensation

The meter provides 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, You can easily view and record data.

Power Monitor

During using, The CPU continuously monitors and displays the battery level, When the battery is running out of power, The battery icon will disappear from the LCD.

Message Indicator

PH-meter has message indicators, it can shows many helpful messages like an on-screen manual for easy operation.

Communication Interface and Data Store

The meter has real-time date/clock stamps, the memory stores up to 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.

Meter Included

- pH Electrode
- Standard pH Buffers
- Temperature Probe
- Battery

Optional Accessory: Carrying Case

Specification