LAQUAtwin Ca-11

LAQUAtwin Ca-11 CompactMeters

Pocket Water Quality Meters

Your lab-in-a-pocket
HORIBA's unique compact meter integrates the electrode, display and sample container to enable simple, effective on-site testing by direct measurement from a single drop.

Segment: Scientific
Division: Water Quality
Base product
Manufacturing Company: HORIBA Advanced Techno Co. Ltd.

Ca2 temp

Waterproof Microvolume Back light 2pt_cal


The only pocket meter that directly measures calcium ion concentration in 0.3ml sample (or 0.05ml sample with sampling sheet B). Unique sensor allows measurement of viscous liquids, solids, and even powder samples. No need for a beaker to calibrate your meter or measure a sample. Just place few drops of the standard or sample onto the flat sensor. This procedure saves you time and prevents wasting your precious sample.

  • Minimum sample volume: 0.3ml (0.05ml with sampling sheet B)
  • Up to 2 calibration points
  • Auto standard recognition: 150 & 2000ppm calcium (default)
  • Changeable high and low calibration values
  • Multiplication compensation: 0.01 to 9.90
  • Temperature and mV display
  • Temperature calibration: 5 to 40.0 ºC
  • Auto hold / auto stable measurement
  • Auto power off: 30 mins.
  • Low battery indicator
  • IP67 Rating dust & waterproof
  • Replaceable sensor
  • 400 Hours battery life: continuous use without backlight
  • Material: ABS epoxy
  • Display: custom (monochrome) digital LCD with backlight
  • Operating conditions: 5 to 40 ºC, 85% or less relative humidity
  • Warranty: 2 years - meter, 6 months - sensor
  • Packed in handy carrying case
  • Supplied with 150 & 2000ppm calcium standards, 5 x sampling sheets B, 2 x CR2032 batteries, dropper, instruction and quick manuals



Measurement PrincipleIon Selective Electrode
Minimum Sample Volume0.3ml (0.05ml with sampling sheet B)
Measurement Range

4 to 9900 ppm (mg/L)

0.1 to 250 mmol/L


0 to 99 ppm: 1 ppm

100 to 990 ppm: 10 ppm

1000 to 9900 ppm: 100 ppm

Accuracy± 20% of actual value
Calibration PointsUp to 2
Temperature Display0 to 50.0 ºC
Temperature Calibration5 to 40.0 ºC
DisplayCustom (monochrome) digital LCD with backlight 
Operating Temperature5 to 40.0 ºC
Operating Humidity85% or less relative humidity (no condensation)
PowerCR2032 batteries (2)
Battery LifeApprox. 400 hours in continuous use without backlight
MaterialABS epoxy
Dimensions164 x 29 x 20 mm (excluding projections)
MassApprox. 55 g (including sensor and batteries)
  • Auto Standard Recognition
  • Changeable High and Low Calibration Values
  • Multiplication Compensation
  • Temperature Calibration
  • Auto Hold / Auto Stable Measurement
  • Switchable Backlight
  • Automatic Power Off (30mins)
  • Low Battery Indicator
  • IP67 Dust / Waterproof
  • Replaceable Sensor
Quick Nutrient Analysis in Strawberry Production
Quick Nutrient Analysis in Strawberry Production
Measurement of Calcium in Milk and Milk Beverages
Measurement of Calcium in Milk and Milk Beverages
Measurement of Calcium in Drinking Water
Measurement of Calcium in Drinking Water
Brochures-LAQUAtwin Pocket Water Quality Meters 2017
Size 3.48 MB
Instruction manuals-Pocket Meters-LAQUAtwin Ca-11 Calcium Ion Pocket Meter Instruction Manual
Size 1.34 MB


Do you have any questions or requests? Use this form to contact our specialists.