VTSYIQI Potassium Ion Meter Portable Potassium Ion Meter with Ion Concentration Range from 0.04 to 39000 ppm Resolution 0.001 0.01 0.1 1 Automatic Accuracy ±1% F.S. Standard Calibration Liquids Multiple Measurement Units

Features:
Professional portable potassium ion meter is equipped with a backlit LCD display.
2 to 5 points calibration from low to high concentrations.
Selectable 8 concentration calibration points, ranging from 0.001 to 10000.
Selectable ion measurement units, including ppm, mg/L and mol/L.
Automatic electrode diagnosis shows the calibration points and slopes.
Automatic temperature compensation ensures accurate readings over the entire range.
Auto-read function senses and locks the measurement endpoint.
Calibration due alarm reminds the user to calibrate the meter regularly.
Auto-power off effectively conserves battery life.
Setup menu allows setting the number of calibration points, ionic valency, stability criteria, temperature unit, date and time, etc.
Reset function automatically resumes all settings back to the factory defaults.
Expanded memory stores or recalls up to 500 data sets.
USB communication interface for data transfer or connecting a power adapter to the meter.

Ion Concentration
Range:0.04 to 39000 ppm
Resolution:0.001, 0.01, 0.1, 1, automatic
Accuracy:±1% F.S.
Calibration:2 to 5 points
Calibration Solutions:0.001 / 0.01 / 0.1 / 1 / 10 / 100 / 1000 / 10000
Measurement Units:ppm, mg/L, mol/L, mmol/L

mV
Range:-1999.9 to 1999.9 mV
Resolution:0.1 mV
Accuracy:±0.2 mV

Temperature
Range:0 to 105°C / 32 to 221°F
Resolution:0.1°C/°F
Accuracy:±0.5°C / ±0.9°F
Calibration:1 point
Calibration Range:Reading ±10°C/°F

Other Specifications
Temperature Compensation:0 to 100°C / 32 to 212°F, manual or automatic
Hold Function:Manual / Auto-read measurement endpoint
Stability Criteria:Low / High
Calibration Due Alarm:1 to 31 days or off
Auto-Power Off:10 / 20 / 30 minutes after last key pressed