Oakton Acorn TDS 6 Meter

Acorn® TDS 6 Meter

Customize TDS conversion factor for better accuracy

High accuracy in changing temperature conditions
Temperature readout and automatic temperature compensation (ATC)
Calibrate the TDS 6 at one point and all five ranges are covered.


These meters feature easy, push-button operation, a convenient HOLD function, and Auto-off function that shuts meter off after 20 minutes of nonuse.

Meters offer two modes of five-point calibration. For quick and easy calibrations, use automatic mode with preset calibration points at the most popular values. For more flexibility, calibrate in the manual mode and set your calibration point at any value.

Set-up functions let you customize automatic temperature compensation, cell constant, and TDS conversion factor for better accuracy and faster use. The protective rubber boot helps shield your meter from drops and dings, and features a built-in stand.

TDS 6 feature automatic or manual ranging across five ranges for a wide variety of applications ranging from pure water to boiler blow down water.

Measures TDS, °C
ConductivityCalibration 5 point calibration
TDSRange 0.00 to 10.00 ppm, 0 to 100.0 ppm, 0 to 1000 ppm, 0.00 to 10.00 ppt, 0.0 to 100.0/200.00 ppt
TDSResolution 0.1 ppm, 1 ppm, 0.01 ppm, 0.01 ppt, 0.1 ppt
TDSAccuracy ±1% full scale
TemperatureRange -10.0 to 110.0°C
TemperatureResolution 0.1°C
TemperatureAccuracy ±0.5°C
TemperatureCalibration offset 0.1°C increments
ATC automatic from 0.0 to 50.0°C
Power 4 1.5 V AA batteries, 100 hours continuous use
Cell constant Selectable K = 0.1, 1.0, or 10
Temperature coefficient adjustable 0-3% per °C
Dimensions 5.5" x 2.7" x 1.3" (14 x 7 x 3.5 cm)
Shipping weight 1 lb (0.5 kg)