Dual-channel multiparameter meters—select exactly the features you need!

Graphical display of measured value and calibrated range for continuous measurement control

Sensor quality is displayed graphically for easy electrode diagnostics

Waterproof USB connection for ultra-flexible data output

WTW MultiLine meters are rugged, dual-channel instruments for pH, conductivity, and dissolved oxygen measurement. Multi 3420 display two channels using any combination of sensors. Order stand-alone meters or convenient kits for economical meter/sensor bundles.

 

MultiLine meters feature brilliant high resolution color displays. Measured readings, channel, and connector position information can be read at a glance. Unique display configuration also provides diagnostic information on sensor quality—easily tell when it is time for calibration or replacement! Plain display of calibrated measurement range ensures accurate readings.

 

Intelligent digital sensors (IDS) have proven advantages over other sensor types. Digital sensors are individually IDed and automatically log on to meters once connected. Sensors compare each following calibration with the initial calibration stored in the sensor providing valuable information on sensor health. Digital processing and data transfer of sensor measurement gives extremely precise measurements. Attach sensors via waterproof quick-lock sensor connections.

 

MultiLine meters also over state-of-the-art data management. Meters store up to 10,000 GLP-compliant measurements. Export data via waterproof USB or mini-USB interface. Waterproof connections are ideal for portable field measurements.

 

What's included: four AA batteries, CD-ROM, cable and power supply

 

Meter kits add: indicated pH, conductivity, or DO sensors, carrying case, calibration kit, stand and sample beaker.

 

Specifications

Product Type Multiparameter Meter

Meter style Portable

Range (pH) -2.000 to 20.000

Range (mV) ±1250, ±2000

Range (Conductivity) 0 to 2000 mS

Range (TDS) 0 to 1999 mg/L

Range (Salinity) 0 to 70 ppt

Range (Resistivity) 0.00 to 20 M

Range (Dissolved oxygen) 0 to 20 mg/L; 0 to 200%

Range (Temperature °C) 5 to 105

Range (Temperature °F) 23 to 221

Resolution (pH) 0.1/0.01/0.001

Resolution (Temperature) 0.1

Resolution (mV) 0.1/1

Resolution (Conductivity) 1.0 µS, 0.1, 1.0 mS

Resolution (TDS) 1 ppm; 0.01, 0.1 ppt

Resolution (Resistivity) 0.01 M ohm

Resolution (Dissolved Oxygen) 0.01 mg/L; 0.1% saturation

Resolution (Salinity) 0.1 ppt, 0.01%

Accuracy (pH) ±0.004 pH

Accuracy (Temperature) ±0.2°C

Accuracy (mV) ±0.2 mV or 0.05%, whichever is greater

Accuracy (Resistivity) ±0.5% ±1 digit

Accuracy (Conductivity) ±0.5% full-scale

Accuracy (TDS) ± 0.5% full-scale

Accuracy (Salinity) ±0.5% of reading

Accuracy (Dissolved Oxygen) ±0.5% of reading

Temperature compensation Automatic or manual

Display LCD

Interface USB

Calibration Up to 5 points

Waterproof Yes

Qty/ea 1

Buffer recognition USA, NIST, DIN

Power Four AA batteries (included)

Datalogging (points) 10,000

CE Compliance Yes

Brand WTW

Dimensions (" W) 7

Dimensions (" H) 3-1/8

Dimensions (" D) 2-1/4

Output USB