| TDS range | 5 - 1000 ppm |
| TDS accuracy | ± 1 % F.S. |
| TDS factor | 0.4 to 1.0 (default 0.5) |
| Calibration points | 1 point |
| TDS type range | Mid-range TDS |
| Calibration solutions | 744.7 ppm |
| Type of sensor | Platinum sensor |
| Temperature compensation | 0 °C - 50 °C, Automatic |
| Temperature coefficient | 2 % per °C |
| Normalization temperature | 25 °C |
| Operating temperature | 0 °C - 60 °C, 32 °F - 140 °F |
| Connector | 6 pin |
| Display | LCD screen |
| Data hold function | Manual |
| Battery life | Approximately 150 hours |
| Power off | Manual or automatic (8 minutes after last key is pressed) |
| Power | 3 × 1.5 V “G13A” |
| Dimension (L × dia.) | 185 × 40 mm |
| Weight | 100 g |
Pocket TDS tester is used to measure TDS content in waste water, swimming pool & aquarium, pure water, drinking water. It is also used in educational and other industrial applications for TDS measurement from test samples.
G134 button cell batteries
Carrying box
TDS standard solution (744.7 ppm)
744.7 ppm TDS standard solutions
Platinum conductivity electrode
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Pocket TDS Tester LPTS-A11 Catalog
Labtron TDS Tester provide measurement of dissolved solid concentration in water up to 1000 ppm. Their electrode probe measures electrical properties of liquid to determine the level of soluble substance. They feature sensors that detect conductivity change, converting them into readings to display on screen. Their battery life is long lasting that minimizes need for frequent replacement or recharges. Our TDS Tester is applicable for hydroponics, water purification, beverage production and testing drinking water quality.




Labtron Pocket TDS tester is designed to measure TDS levels in various water types, including drinking water, wastewater, swimming pool water, and aquarium water. Its medium TDS range of 5 to 1000 ppm makes it versatile for testing low and high TDS water sources. This tester is ideal for applications in both household and industrial settings, ensuring the quality of water for different uses. The tester provides reliable results, whether monitoring water quality at home or conducting more extensive industrial tests.
The Pocket TDS tester includes automatic temperature compensation, ensuring accurate readings across a range of temperatures (0 °C to 50 °C). This feature automatically adjusts for temperature changes, which can otherwise affect TDS measurements. The tester uses a temperature coefficient of 2% per °C to maintain precise readings. This capability ensures consistent and reliable results, even when testing water at varying temperatures, making the device perfect for diverse environments.
Yes, our Pocket TDS tester is user-friendly, even for beginners. The 1-point push button calibration system simplifies the process, requiring minimal effort to adjust the device to a 744.7 ppm calibration solution. The device’s LCD screen clearly displays readings, and the auto hold function captures stable values for easy recording. These features make it a useful testing device for both novice and experienced users.
Labtron's Pocket TDS tester's waterproof design provides protection against water exposure, making it durable for use in challenging environments like pools, wastewater treatment plants, and outdoor settings. It ensures the device remains functional even in harsh, wet conditions. The tester is built to withstand accidental water exposure, extending its lifespan and ensuring reliable performance. This makes it ideal for professionals working in environments where water contact is common.
Our Pocket TDS tester runs on three 1.5 V G13A batteries, offering about 150 hours of continuous use. The device features an automatic power-off function that activates after 8 minutes of inactivity. Additionally, users can manually turn off the device when it’s not in use to further extend battery life. These features make it convenient for long-term testing without frequent battery changes.
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Labtron Equipment Ltd., Quatro House, Lyon Way, Camberley, Surrey GU16 7ER United Kingdom
Email: info@labtron.com Whatsapp: +44 73 4441 2688 Phone: +44 2080 043608