pH/Conductivity/TDS/Salt/Temp Waterproof Tester Manufacturer,Supplier and Exporter in India
Product Code : EL-PM-2185
Jlab Export is a leading pH/Conductivity/TDS/Salt/Temp Waterproof Tester Manufacturer,and suppliers in India
One pocket tester covers six readings for water work: pH, mV, conductivity, TDS, salt and temperature. Conductivity, TDS and salt all come from the same conductivity sensor, corrected for sample temperature at 2% per °C. The case is waterproof to IP 57 and floats, the sensor can be replaced by the user, and four AAA cells power it.
Specifications
| pH and mV | pH -2 to 16.00 (0.01 pH), mV -1000 to 1000 (1 mV) |
| Conductivity | 0–2000 µS (1 µS) and 2.00–20.00 mS (0.01 mS) |
| TDS | 0–1300 ppm (1 ppm) and 1.30–13.00 ppt (0.01 ppt) |
| Salt | 0–1000 ppm (1 ppm) and 1.00–12.00 ppt (0.01 ppt) |
| Temperature | 0–90.0 °C or 32–194.0 °F, resolution 0.1 |
| Accuracy | pH ±0.01 +1 digit, mV ±2 +1 digit, TDS, conductivity and salt ±2% of full scale, temperature ±0.2 °C +1 digit |
| Calibration | Push button; pH 4.00, 7.00 and 10.01; conductivity 0 µS, 1413 µS and 12.88 mS |
| Temperature compensation | Automatic (ATC), temperature coefficient 2% per °C |
| Case and sensor | IP 57 waterproof, floats, user-replaceable sensor, data hold, max/min, °C/°F switchable |
| Power and size | 4 x 1.5 V AAA batteries, auto power-off after 10 minutes; meter 195 x 40 x 36 mm, 135 g with battery |
| Minimum order quantity | 5 units |
| Dispatch time | Usually 7–10 working days |
| Manufacturer | JLab (Jain Laboratory Instruments Pvt Ltd), Ambala, India |
Water Testing Practicals for Students
A popular class investigation compares tap water, RO water and two brands of bottled water. Students record conductivity, TDS and pH for each and explain why the RO sample reads lowest. Before they start, they check the conductivity calibration in a 1413 µS standard made from Potassium Chloride.
Environmental science groups take the tester along a stream or drain and log all six readings at each point. Back in the lab, they read the same samples with the portable Conductivity Meter and compare the two sets of results. Plotting conductivity against distance from an outfall shows where dissolved salts enter the water.
Frequently Asked Questions
How does the tester work out TDS?
It measures conductivity and multiplies it by a conversion factor to estimate total dissolved solids. The result is an estimate, because different dissolved salts conduct differently. For one water source, the TDS trend over time is more useful than a single figure.
Which conductivity standard should I calibrate with?
Calibrate at 1413 µS for drinking water and other samples below 2000 µS. Use the 12.88 mS standard for saline or waste water read on the mS range. The 0 µS point sets the zero.
Why do the TDS and salt readings differ for the same water?
Both are calculated from conductivity, but the salt reading treats all dissolved matter as common salt, while TDS uses a general factor. So the two numbers are not expected to match, even though they move together.
When should the sensor be replaced?
Replace it when it will no longer calibrate, when readings drift after cleaning, or when the response becomes slow. The sensor is user-replaceable, so the tester body does not need to be changed.
Why does sample temperature matter?
Conductivity rises as water warms. The tester corrects its conductivity, TDS and salt readings at 2% per °C using its own temperature sensor, so cold and warm samples can be compared fairly.
Other Water-Testing Meters
- pH/mV/Temperature Meter (same case, pH only)
- Cond./TDS/Salt/Temp Water Proof Meter
- Digital pH, Conductivity & Temperature Meter (bench meter)
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Last updated: 6 November 2026
