Ca-11 LAQUAtwin Calcium Ion Meter
Brand Chemical Supplies provides the HORIBA LAQUAtwin Ca-11, a professional-grade, pocket-sized calcium ion meter. This instrument utilizes a flat sensor technology—exclusive to HORIBA—allowing for high-precision measurements of calcium ions ($Ca^{2+}$) using as little as $0.3 mL$ of sample. It is the ultimate tool for rapid, on-site analysis in agriculture, food production, and clinical research.
Technical Specifications
| Feature | Specification |
| Measurement Principle | Ion Selective Electrode (ISE) |
| Minimum Sample Volume | $0.3 mL$ ($0.05 mL$ with sampling sheet) |
| Measurement Range | $4$ to $9900 ppm$ ($mg/L$) |
| Resolution | $0 \sim 99: 1 ppm$; $100 \sim 990: 10 ppm$; $1000 \sim 9900: 100 ppm$ |
| Accuracy | $\pm 10\%$ of actual value |
| Calibration | Up to 2 Points |
| Battery Life | $\approx 400$ Hours of continuous use |
Key Features & Benefits
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Flat Sensor Technology: The unique sensor allows you to measure samples in various forms: liquids, solids (via mashing), powders, and even paper/cloth (using the sampling sheet). You can simply drop the sample onto the sensor, or immerse the sensor directly into the liquid.
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Automatic Range Switching: The meter intelligently switches between $ppm$ ranges to provide the best possible resolution for your specific sample.
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Temperature Compensation: Automatically adjusts readings based on the sample temperature to ensure accuracy in varying field conditions.
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Waterproof & Dustproof: Rated IP67, meaning the meter can be fully submerged in water for cleaning and used in rugged outdoor environments without risk of damage.
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Stability Indicator: A “smiley face” icon appears on the LCD once the reading has stabilized, ensuring you record the most accurate data point.
Primary Applications
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Agriculture & Soil Health: Measuring calcium levels in soil slurries and plant sap ($petiole$ testing) to manage crop nutrition and prevent disorders like “bitter pit” in apples or “blossom end rot” in tomatoes.
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Aquaculture & Coral Reefs: Precise monitoring of calcium concentrations in saltwater tanks, which is vital for the skeletal growth of corals and shellfish.
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Food & Beverage: Testing calcium content in milk, fortified juices, and processed foods for quality control and nutritional labeling.
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Water Treatment: Assessing “hardness” and mineral balance in municipal and industrial water supplies.
Maintenance & Sensor Care
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Conditioning: Before first use or after long-term storage, place a few drops of the higher concentration standard solution on the sensor for $10 \sim 30$ minutes.
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Cleaning: After each measurement, rinse the sensor with deionized water and blot dry with a soft tissue. For oily samples, use a mild detergent.
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Sensor Replacement: The sensor is a consumable part. If calibration becomes impossible or the response time exceeds $2$ minutes, the sensor head should be replaced.
Contact our laboratory instrumentation team at Brand Chemical Supplies today to secure your Ca-11 LAQUAtwin meters and streamline your ion analysis with pocket-sized precision.
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