6377MB/6377BEU pH/ORP/Conductivity/Salinity/TDS/Temperature Based Bluetooth Benchtop

5th generation multi-parameter pH/ORP/Conductivity/Salinity/TDS/Temperature Based Bluetooth Benchtop Meter with iOS and Android tablet connectivity

  • Renowned accuracy and repeatability
  • Upgraded user experience and usability
  • Improved electrode serviceability and low cost of ownership

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Our 5th generation benchtop series consists of single and multi-parameter models, with or without Bluetooth connectivity. The 6377MB/6377BEU is a multi-parameter pH/ORP/Conductivity/Salinity/TDS/Temperature Based Bluetooth Benchtop Meter that pairs with iOS and Android tablets to enable the same user experience as users’ favorite apps while providing graphing, guided calibration procedures, data sharing, cloud data storage and user-defined compliance policies.


Renowned Accuracy and Repeatability

Repeatable, accurate results achieved with up to 5 points NIST or US buffer calibration for pH, 1 point ORP offset calibration and conductivity calibrations in multiple ranges.

  • Repeatable readings with 0.01 pH and 0.1 mV resolution
  • Repeatable, accurate results achieved with up to 5 points NIST or US buffer calibration for pH, 1 point ORP and 1 point Conductivity offset calibration.
  • Non-volatile memory holds up to 750 data points.
  • Each and every unit is hand calibrated and QC’ed by at least 2 teams
  • CE, FCC ID, RoHS complaint

App-Enhanced Productivity

Free iOS and Android apps are as easy and convenient to use as users’ favorite apps, and allow complete control of all on-meter functionality plus guided calibration procedures and much more.


Great User Experience

Streamlined and modern design is paired with a large, high contrast backlit LCD, buttons with tactile and audio feedback, and a detached electrode holder arm.

  • Streamlined, modern and smaller design creates clutter-free workspace
  • Large, high contrast LCD
  • Well-situated keys with tactile feedback
  • AC adaptor or battery powered
  • Splash-resistant case made with durable, reinforced plastic for added protection

Improved Electrode Serviceability and Low Cost of Ownership

Standard BNC connector for pH or ORP electrodes, 8-pin DIN for conductivity and temperature electrodes.


Easily Share Data Locally or to the Cloud

Share stored data to other apps such as Notes and Evernote or to cloud services such as Google Docs.


High Information Availability

Display pH, conductivity, salinity or TDS with temperature readings simultaneously with electrode efficiency, last calibration date and real-time graphing.


GLP-Compliant Data Storage

Greater than10k Sets of pH or conductivity and temperature data plus calibration data such as calibration date, buffers used, calibration slopes and calibration offsets.


pH Range
-2.00 to 16.00 pH
pH Resolution
0.01 pH
pH Accuracy
±0.01 pH
mV (RmV) Range
- 1999.9 to 1999.9 mV
mV (RmV) Resolution
0.1 mV
mV (RmV) Accuracy
±0.05% F.S.
Conductivity/TDS Range K=0.1
0.00 to 200.0 uS/cm / 0.00 to 200.0 mg/L
Conductivity/TDS Resolution K=0.1
0.01 uS/cm, 0.1 uS/cm / 0.01 mg/L, 0.1 mg/L
Conductivity/TDS Accuracy K=0.1
±0.5% F.S.
Conductivity/TDS Range K=0.475
0.0 uS/cm to 200.0 mS/cm / 0.0 mg/L to 200.0 g/L
Conductivity/TDS Resolution K=0.475
0.1 μS/cm, 1 μS/cm, 0.01 mS/cm, 0.1 mS/cm / 0.1 mg/L, 1 mg/L, 0.01 g/L, 0.1 g/L
Conductivity/TDS Accuracy K=0.475
±0.5% F.S.
Salinity Range
0.0 to 80.0 ppt
Salinity Resolution
0.1 ppt
Salinity Accuracy
±0.5% F.S.
Temperature Range
-10.0 to 120.0 °C
Temperature Resolution
0.1 °C
Temperature Accuracy
±0.2 °C
pH/EC Temperature Compensation
Auto/manual -10.0 to 120.0 °C
pH Buffer Recognition
(1.68, 4.01, 7.00, 10.01, 12.46) or (1.68, 4.00, 6.86, 9.18, 12.46)
pH Buffer Temperature Range
0 to 60 °C
pH Electrode Offset Recognition
±1.0 pH
pH Electrode Slope Recognition
pH calibration
Up to 5 point
mV calibration
1 point offset ± 150 mV
Conductivity calibration
1 point
Input Impedance
>1012 ohms
Reference Temperature
15.0 to 25.0 °C, default at 25.0 °C
Temperature Coefficient
0.00 to 4.00%, default at 1.91%
TDS Factor
0.30 to 1.00, default at 0.65
Basic Cell Constant
K=0.1, k=0.475, user selectable
Calibration Backup
Audio Feedback
All touch keys
End Point Sensing & Hold
pH & ORP
Auto Ranging
ATC Probe
Thermistor, 10 kohm (6377MB), Thermistor, 30 kohm (6377BEU)
Data Memory
750 sets
Ambient Temperature Range
0 to 50 °C
Relative Humidity
Up to 90%
Power Supply
100 to 240 V AC adapter or AAA x 6 Batteries
430 grams
Dimensions (w x d x h)
150 x 210 x 45 mm

Documentation and Supports