Description
Product Overview
The HORIBA LAQUAtwin EC33 is engineered for professionals who demand precise water quality data in a portable format. Built in Japan, this pocket‑sized instrument combines conductivity, total dissolved solids (TDS) and temperature measurement in a single device. Its measurement range spans 0 to 199.9 mS/cm, translating to a TDS range of 0 to 9,900 ppm, making it suitable for fresh, brackish, and seawater applications. The meter features an IP67 waterproof rating, guaranteeing protection against dust ingress and immersion in up to 1 meter of water for 30 minutes, which is essential for field work in harsh environments. The LCD display includes a backlight for clear reading in low‑light conditions, and the device operates on two CR2 batteries that provide long‑lasting power.
The EC33 incorporates automatic temperature compensation (ATC) and up to three user‑defined calibration points. Calibration solutions of 1.41 mS/cm and 12.88 mS/cm are supplied, and the meter can automatically recognize the solution type, simplifying the calibration process. A replaceable sensor ensures long‑term accuracy, and the sensor itself carries a 2‑year warranty, extending the overall product warranty to 2.5 years. The instrument’s compact dimensions (7 × 4 × 7 inches) and lightweight design (6.56 oz) make it easy to carry in the included plastic storage case.
![[Product front view showing all components]](https://www.qolviro.store/wp-content/uploads/2026/07/b00a1bf0b1fb426681771524967e2472.jpg)
Usage
The EC33 is designed for a wide range of water‑related industries. Environmental monitoring teams use it to assess river and lake water quality, while aquaculture facilities rely on its rapid readings to maintain optimal conditions for fish and shrimp. Municipal water treatment plants employ the meter for routine checks of source water and finished product compliance. In the food and beverage sector, quality control personnel use the EC33 to verify the conductivity of brewing water, dairy processing streams, and cleaning solutions. Its waterproof construction allows users to submerge the probe directly into large tanks, streams, or wells, and the low sample volume requirement (as little as 0.12 ml) enables testing of scarce or precious water sources.
The device’s intuitive interface requires only a few button presses to switch between conductivity, TDS, and temperature modes. The backlit LCD provides instant readings, and the automatic calibration feature reduces the time spent on setup, allowing technicians to focus on data collection and analysis. The included accessories—batteries, calibration solutions, a 4 ml conditioning bottle, a plastic pipette, and a user manual—ensure that the meter is ready for immediate deployment out of the box.
Why Choose Us
Choosing the HORIBA LAQUAtwin EC33 means selecting a product backed by decades of scientific instrumentation expertise. HORIBA’s reputation for precision and durability is reflected in the EC33’s robust construction, Japanese‑grade sensor technology, and rigorous quality control processes. The meter’s IP67 rating not only meets but exceeds industry standards for water‑resistant devices, providing confidence that the instrument will continue to perform reliably even in wet or dusty field conditions.
Our commitment to customer satisfaction extends beyond the product itself. HORIBA offers a comprehensive warranty—2 years for the meter and an additional 6 months for the sensor—along with responsive technical support. Should you need assistance with calibration, troubleshooting, or replacement parts, our knowledgeable service team is available to help. Moreover, the EC33’s design emphasizes ease of maintenance; the sensor can be replaced without specialized tools, reducing downtime and extending the instrument’s service life.
Key Features
- Wide measurement range of 0‑199.9 mS/cm (0‑9,900 ppm TDS) for versatile water analysis.
- IP67 waterproof rating protects against dust and immersion, ideal for field and laboratory use.
- Automatic temperature compensation and up to three calibration points ensure accurate, repeatable results.
- Compact pocket‑size design with backlit LCD for quick readings in any lighting condition.
- Comes with batteries, calibration solutions, pipette, and storage case, plus 2.5‑year warranty and dedicated after‑sales support.
FAQ
What is the accuracy of the EC33 conductivity measurements?
The meter provides a precision of ±2 % of the measured value, which meets the requirements of most industrial and environmental applications.
Can the sensor be replaced if it becomes damaged?
Yes, the sensor is replaceable. HORIBA supplies compatible replacement sensors, and the swap can be performed without special tools, ensuring minimal downtime.
How many calibration solutions are included and what are their values?
The package includes two calibration solutions: one at 1.41 mS/cm and another at 12.88 mS/cm. The meter automatically detects the solution type, simplifying the calibration process.
Is the EC33 suitable for measuring very small water samples?
Absolutely. The probe can accurately measure samples as small as 0.12 ml, making it suitable for limited‑volume testing scenarios.
What kind of warranty does HORIBA provide for the EC33?
The EC33 comes with a 2‑year warranty for the meter itself and an additional 6‑month warranty for the sensor, reflecting HORIBA’s confidence in the product’s durability.




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