Pocket TDS Tester Multi-Range - Pen Type TDS Meter - 0-1000 ppm and 20.00 ppt - ±1% F.S.

The Master Science Pocket TDS Tester is a multi-range pen meter for total dissolved solids. Four ranges, 10.00, 100.0 and 1000 ppm and 20.00 ppt, cover everything from purified water to saline solutions, with ±1% of full scale accuracy.

Temperature is shown on the second display line and compensated automatically from 0 to 60 °C. Calibration takes one to three points with automatic recognition of TDS standards, and the conversion factor can be set between 0.1 and 1.0.

Technical Specifications

Specifications of the Master Science Pocket TDS Tester:

• Brand: Master Science
• Model Number: MSTDS-P20SWISS
• SKU: MSTDS-P20SWISS
• Brand: Master Science
• Model Number: MSTDS-P20SWISS
• SKU: MSTDS-P20SWISS
• TDS Ranges: 0 to 10.00, 100.0, 1000 ppm; 20.00 ppt
• TDS Resolution: 0.01, 0.1, 1
• TDS Accuracy: ±1% F.S.
• Calibration: 1 to 3 points, automatic standard recognition
• Temperature Range: 0 to 60 °C (32 to 140 °F)
• Temperature Resolution / Accuracy: 0.1 °C / ±1 °C
• Temperature Offset Calibration: 1 point, reading ±10 °C
• Temperature Compensation: 0 to 60 °C, automatic
• TDS Factor: 0.1 to 1.0 (default 0.5)
• Hold Function: Manual or automatic end point
• Auto Power-Off: 8 minutes after last key press
• Operating Temperature: 0 to 50 °C
• Display: Dual-line LCD, 21 × 21 mm
• Power: 2 × 1.5 V AAA batteries
• Battery Life: About 200 hours of continuous use
• Dimensions: 185 mm long × 40 mm diameter
• Weight: 100 g

Key Benefits

• One tester for dilute and concentrated samples: the Master Science Pocket TDS Tester has four ranges.
• Readings matched to your water type: adjustable TDS factor.
• Temperature-corrected: automatic compensation.
• Calibration without guesswork: standards recognised automatically.
• Long battery life: about 200 hours.

For bench work with more parameters, see the Master Science benchtop EC meter.

Product Features

Measurement

• Auto-read senses and locks the end point
• Manual hold
• TDS and temperature shown together

Setup

• Number of calibration points
• TDS conversion factor
• Five setup options in the menu
• Reset to factory defaults

Power

• Auto power-off
• Two AAA batteries

Applications

The Master Science Pocket TDS Tester is used for:

• Total dissolved solids measurement in water samples
• Spot checks in the laboratory or on site

Common Problems and How This Tester Helps

How the Master Science Pocket TDS Tester makes TDS checks easier:

• Single-range pens that over-range: four switchable ranges.
• Readings changing with temperature: automatic compensation.
• Unsteady display: auto-read hold.
• Flat batteries: auto power-off after 8 minutes.