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Milwaukee Mi306 Automatic and Logging EC/TDS/NaCl Temp Meter

Milwaukee Instruments
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Milwaukee Mi306 Portable Automatic and Logging EC/TDS/NaCl Temp Meter

Brand Name
Mfr Part #
Pkg Qty
Measurement Type
Electrical Conductivity , Total Dissolved Solids (TDS) , Salinity , Temperature
Overall Height
50  millimeters
Overall Length
200  millimeters
Overall Width
85  millimeters

Mi306 water tester made by Milwaukee Instruments Automatic and Logging EC/TDS/NaCl Temp Meter

The Mi306 EC/TDS/NaCl/Temperature Meter is a versatile water tester with a variety of field applications. Gives quick, accurate readings. Features Hold function to freeze readings for easy and accurate recording. Stores up to 250 data records. User selects from Automatic Temperature Compensation, Manual Temperature Compensation, or No Temperature Compensation. This unit is lab tested and quality assured. Includes hard case, MA814D/1 Conductivity Probe, RS232 Connection Cable, starter calibration solution, and 9V battery.

Note: We ship to the USA and Canada only.

RangeEC (Auto-ranging)0.00 to 29.99 µS/cm; 30.0 to 299.9 µS/cm; 300 to 2999 µS/cm; 3.00 to 29.99 mS/cm; 30.0 to 200.0 mS/cm; up to 500.0 mS/cm actual(*) EC
TDS (Auto-ranging)0.00 to 14.99 mg/L; 15.0 to 149.9 mg/L; 150 to 1499 mg/L; 1.50 to 14.99 g/L; 15.0 to 100.0 g/L; up to 400.0 g/L actual(*) TDS (with 0.80 factor)
NaCl0.0 to 400.0 %
Temp0.0 to 60.0°C
ResolutionEC0.01 µS/cm (from 0.00 to 29.99 µS/cm); 0.1 µS/cm (from 30.0 to 299.9 µS/cm); 1 µS/cm (from 300 to 2999 µS/cm); 0.01 mS/cm (from 3.00 to 29.99 mS/cm); 0.1 mS/cm (over 30.0 mS/cm)
TDS0.01 mg/L (from 0.00 to 14.99 mg/L); 0.1 mg/L (from 15.0 to 149.9 mg/L); 1 mg/L (from 150 to 1499 mg/L); 0.01 g/L (from 1.50 to 14.99 g/L); 0.1 g/L (over 15.0 g/L)
NaCl0.1 %
Temp0.1 %
Accuracy (@25°C)EC±1% of reading (±0.05 µS/cm or 1 digit whichever greater)
TDS±1% of reading (±0.053 ppm or 1 digit whichever greater)
NaCl±1% of reading
Typical EMC DeviationEC±1% of reading
TDS±1% of reading
NaCl±1% of reading
LoggingUp to 250 records, LOG on demand or auto-logging
CommunicationWith PC through RS232 port
EC Calibration1 point with 7 memorized buffers: 84 µS/cm, 1413 µS/cm, 5000 µS/cm, 80000 µS/cm, 111800 µS/cm
NaCl Calibration1 point with MA9066 buffer (optional)
automatic or manual from 0 to 60°C 
(can be disabled to measure actual conductivity and TDS)
0.00 to 6.00 %/°C (for EC and TDS only)
Default value is 1.90%/°C
TDS Factor0.40 to 0.80 (default value is 0.50)reference Temperature: 20 or 25°C
ProbeMA814D/1 EC probe with built-in temperature sensor & 1 m cable (included)
Environment0 to 50°C / 32 to 122°F; max RH 100%
BatteryType9V alkaline (included)
Lifeapprox. 100 hours of use
Auto-offafter 5 minutes of non use (can be disabled)
Physical SpecsCasingIP 67
Dimensions200 × 85 × 50 mm
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