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For laboratory consumables or equipment, head over to our alternative website, Australian Scientific, where you can conveniently purchase these items alongside water quality products.
TDS Meter Kit – Pocket TDS20
TDS Range 0–100.0 ppm / 0–1000 ppm / 0–10.00 ppt – ±1% F.S. Accuracy
$129.00 ex GST
Description
The Apera Instruments TDS20 is a reliable, affordable pocket TDS (ppm) tester for routine testing across a wide range of applications, including tap and drinking water, agriculture, aquaculture, swimming pools, hydroponics and education.
Its advanced platinum black conductivity probe delivers accurate, consistent measurements across the full range. The ultra-clear 180° viewing angle screen displays temperature and TDS values simultaneously, with indicators for completed calibrations and stable readings.
The TDS20 is supplied as a complete kit including calibration solutions (1413 µS and 12.88 mS), AAA batteries, a lanyard and a durable carrying case. It offers 1 to 2 point automatic calibration, 0–50°C automatic temperature compensation, and ±1% F.S. accuracy across a 0–20.00 mS/cm conductivity range.
Key Features
- Brush-resistant platinum black probe: accurate, stable readings across the full measuring range
- Simultaneous TDS and temperature display: 180° viewing angle LCD with calibration and stability indicators
- Automatic 1 to 2 point calibration: quick setup with the supplied 1413 µS and 12.88 mS solutions
- Automatic temperature compensation: 0 to 50°C for consistent results
- IP67 waterproof and dustproof: floats if dropped in water
- Self-diagnosis: out-of-range warnings and incorrect-calibration reminders
- Long battery life: up to 1000 hours of continuous operation from 4 × AAA batteries, with low-battery warning and auto power-off after 8 minutes
Ideal For
- Drinking and tap water: routine dissolved solids checks
- Hydroponics: nutrient solution monitoring
- Pools and spas: water balance testing
- Aquaculture and aquariums: maintaining stable water conditions
- Water and waste water treatment: process and discharge monitoring
- Education: a robust, low-cost meter for classroom and field use
What’s in the Kit
- TDS20 pocket TDS tester
- 1 × 50 ml 1413 µS and 12.88 mS calibration solutions
- 4 × AAA batteries
- Lanyard
- Hard carrying case
Need calibration solution for your pocket meter? CLICK HERE to view our range
Measuring Parameter |
TDS, Temperature |
TDS Range |
0 to 100.0 ppm, 0 to 1000 ppm, 0 to 10.00 ppt |
TDS Resolution |
0.1 / 1 ppm; 0.01 ppt |
TDS Accuracy |
±1% F.S. |
Conductivity Range |
0.1 µS to 20.00 mS |
Calibration Points |
Automatic, 1 to 2 points |
Temperature Compensation |
Automatic, 0 to 50°C (32 to 122°F) |
Temperature Range |
0 to 50°C (32 to 122°F) |
Temperature Resolution |
0.1°C |
Temperature Accuracy |
±0.5°C |
Sensor Type |
BPB (brush-resistant platinum black), non-replaceable |
Temperature Sensor |
Yes |
Display |
180° viewing angle LCD |
Stable Reading Indication |
Smiley face icon |
Low-Battery Warning |
Flashing battery icon |
Self-Diagnosis |
Yes |
Auto Power-Off |
Yes, after 8 minutes without operation |
Waterproof Rating |
IP67; floatable |
Power |
DC3V, 4 × AAA batteries |
Battery Life |
Up to 1000 hours continuous operation |
Dimensions & Weight |
Tester: 40 × 31 × 178 mm / 107 g Case: 190 × 165 × 40 mm / 438 g |
Warranty |
Two years on the instrument, six months on the probe from delivery |
