The LAQUAtwin NO3-11 is the only pocket meterthat directly measures nitrate ion and nirate-nitrogen concentrations 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.
Making sure you have the right electrode and meter for your application can be confusing, not to mention correct maintenance and what to do if you are having issues. You can find links to our support guides below to help you through the process.
If you are after an electrode selector guide for some of our most popular electrodes and what applications they are recommended for you can find that below.
An introduction to pH
pH, put simply is a measure of how acidic or basic a solution is. It is a measure of H+ions present.
pH can be measured in a number of ways including test strips, indicator solution or with a pH meter and electrode. If you want to read more about the pH and the pros and cons of these methods, you can check out our introduction guide here.
How to take a pH reading and care for your electrode
pH electrodes require the correct storage and regular calibration.
If you have a pH meter or are looking to purchase and need to find out more about the care and maintenance process then you can read our guide here. We also include a troubleshoot sections with the most reported issues and possible solutions.
Selecting the right electrode and meter for your application
So you have decided you need to purchase a pH meter with electrode, but with such a wide selection out there, how do you know which is right for you?
You can read our guide on the differences between electrodes and what applications different features are good for. We also have an electrode selection guide for some of our most popular electrodes.
If you require any further assistance, or extra information you can request that here and one of our trained technical specialists will be in contact. Please provide as much detail as possible so that we can get back to you with the right information.
Have you considered your servicing requirements? Much like a car, scientific instruments may need a bit of care to keep them working reliably and at their most accurate.
The Camlab Service Department have over 60 years experience in scientific instrumentation. We have a number of highly qualified internal and field-based service engineers able to perform a variety of jobs including preventative maintenance servicing and calibration.
Camlab can offer yearly service contracts which include two main types of preventative maintenance/calibration services – the back to base service and an engineer visit to your site. These options are can be offered with differing turn around times depending on the instrument type and your requirements along with loan instruments if available.
A typical preventative maintenance service includes the following:
Inspection and testing of the unit
Dismantling, cleaning and inspection of the key parts
Correction of minor defects including adjustments if necessary
Reassembly and testing
Take post adjustment / cleaning readings
Supply of calibration certificate
Return of the item to you (back to base services)
Request a quote for your servicing requirements today.
LAQUAtwin pH Pocket meter with plastic carry-case, 14 ml buffer/standard solutions, 2 x CR2032 batteries, dropper
|LAQUAtwin PH-11||3999960122||PH-11, pH 2-point calibration|
|LAQUAtwin PH-22||3999960123||PH-22, pH 3-point calibration|
|LAQUAtwin PH-33||3999960124||PH-33, pH / temp, 5-point calibration|
|S010||3200459834||Replacement pH sensor for B-21x & B-71x, PH11, PH22, PH33|
|514-4||3999960108||pH 4.01 buffer solution, 6 x14 ml|
|514-7||3999960109||pH 7.00 buffer solution, 6 x 14 ml|
|514-686||3200691954||pH 6.86 buffer solution 14 mL x 6|
LAQUAtwin CONDUCTIVITY / TDS Pocket meter with plastic carry-case, 14 ml buffer/standard solutions, 2 x CR2032 batteries, dropper
|LAQUAtwin EC-11||3999960125||EC-11, EC, 0-19.99mS/cm, 2-point Calibration|
|LAQUAtwin EC-22||3999960126||EC-22, EC / temp, 0-199.9mS/cm, 3-point Calibration|
|LAQUAtwin EC-33||3999960127||EC-33, EC/TDS/temp, 0-199.9mS/cm; 0.0-9990ppm, 3-point Cal|
|S070||3200459672||Replacement Conductivity / TDS sensor for B-771, EC11, EC22 and EC33|
|514-22||3999960110||Conductivity Standard 1413 uS/cm, 6 x 14 ml|
|514-23||3999960111||Conductivity Standard 12.9 mS/cm, 6 x 14 ml|
|514-20||3999960114||Conductivity/Salinity conditioning solution 6 x 14 ml|
LAQUAtwin SALT Pocket meter with plastic carry-case, 14 ml buffer/standard solutions, 2 x CR2032 batteries, dropper
|LAQUAtwin Salt-11||3999960128||SALT-11, Salt by EC sensor|
|LAQUAtwin Salt-22||3200689158||SALT-22, Salt by Na+ sensor|
|S071||3200597237||Replacement Salt (NaCl) sensor for Salt 11|
|S021||3200459866||Replacement Salt (NaCl) sensor for B-721 and SALT-22|
|514-05||3999960112||NaCl Standard solution 0.5%, 6 x 14 ml|
|514-50||3999960113||NaCl Standard solution 5.0%, 6 x 14 ml|
LAQUAtwin SODIUM Pocket meter with plastic carry-case, 14 ml buffer/standard solutions, 2 x CR2032 batteries, dropper
|LAQUAtwin Na-11||3200689159||NA-11, Sodium Ion (Na+)|
|S022||3200459867||Replacement Sodium (Na) sensor for B-722 and NA-11|
|Y022H||3200457723||Na Sodium Standard solution 2000ppm, 6 x 14 ml|
|Y022L||3200457724||Na Sodium Standard solution 150ppm, 6 x 14 ml|
LAQUAtwin POTASSIUM Pocket meter with plastic carry-case, 14 ml buffer/standard solutions, 2 x CR2032 batteries, dropper
|LAQUAtwin K-11||3200689160||K-11, Potassium Ion (K+)|
|S030||3200459868||Replacement Potassium (K) sensor for B-731 and K-11|
|Y031H||3200457719||K Potassium Standard solution 2000ppm, 6 x 14 ml|
|Y031L||3200457720||K Potassium Standard solution 150ppm 6 x 14 ml|
LAQUAtwin CALCIUM Pocket meter with plastic carry-case, 14 ml buffer/standard solutions, 2 x CR2032 batteries, dropper
|LAQUAtwin Ca-11||3200689161||CA-11, Calcium Ion (Ca2+)|
|S050||3200459869||Replacement Calcium (Ca) sensor for B-751 and CA-11|
|Y051H||3200457727||Ca Calcium Standard solution 2000ppm, 6 x 14 ml|
|Y051L||3200457728||Ca Calcium Standard solution 150ppm, 6 x 14 ml|
LAQUAtwin IONIZED CALCIUM Pocket meter
|LAQUAtwin-Ca-11C||3200772940||CA-11C bovine blood with 1 x Y053L, 1 x Y053H, 2 x #251, wash bottle and carrying case|
|S051||3200772945||Calcium ion sensor for LAQUAtwin-Ca-11C|
|Y053||3200774921||Solution kit Y053L (2x25ml 1.25 mmol/L), Y053H (2x25ml 2.50 mmol/L), Cleaning solution #251 (3x250mL)|
|Y053L||3200774598||Y053L (2 x 25ml 1.25 mmol/L) calibration solution|
|Y053H||3200774599||Y053H (2 x 25ml 2.50 mmol/L) calibration solution|
|#251||3200774601||Cleaning solution #251 (1 x 250mL)|
LAQUAtwin NITRATE Pocket meter
|LAQUAtwin NO3-11||3200689162||NO3-11, Nitrate Ion (NO3-) with case, 14 ml standard solutions, batteries, dropper|
|LAQUAtwin-NO3-11C||3200689163||Nitrate Ion (NO3-) for crops, in carrying case with 5 Pipettes, Crop sample press, 3 cups|
|LAQUAtwin-NO3-11S||3200689164||Nitrate Ion (NO3-) for soil, carrying case with 5 Pipettes, 3 bottles (100 mL), 2 sampling spoons, Tweezers, Sampling sheet B, 2 Sampling sheet holders|
|S040||3200459870||Replacement Nitrate (NO3) sensor for B-34x & B-74x and NO3-11|
|Y041||3200053433||NO3 Nitrate Standard solution 5000 ppm, 6 x 14 ml|
|Y042||3200053514||NO3 Nitrate Standard solution 300 ppm 6 x 14 ml|
|Y043||3200053532||NO3 Nitrate Standard solution 2000 ppm, 6 x 14 ml|
|Y044||3200053535||NO3 Nitrate Standard solution 30 ppm, 6 x 14 ml|
|Y045||3200053536||NO3 Nitrate Standard solution 150 ppm, 6 x 14 ml|
|Y-011A||3014053435||Sampling sheet C - 5 Rolls, 11mm x 6m|
|Y046||3200053858||Sampling sheet B - 100pcs|
|Y048||3200459736||Sampling sheet holder for Laqua Twin series|
|Crop Press Y049||3200469679||Crop sap press New|
|LAQUAtwin carrying case||1234567890||Carrying case for LAQUAtwin for 7 meters|
Follow simple, good testing procedures for accurate and dependable results:
Always ensure the sensor is clean before calibrating. If not, clean thoroughly with water (don’t worry, LAQUAtwin meters are completely waterproof!). Place some standard solution on the sensor and press the calibration button. Once the smiley face appears, indicating that calibration is complete, wash off the standard solution with water and dry with a clean, soft tissue.
LAQUAtwin meters only need a tiny amount of sample - so no beaker is necessary. Fill the sensor with the sample and when the smiley face appears, the measurement is complete.
Clean the sensor thoroughly with water, ready for the next test. When the sensor is nearing the end of its usable lifetime, it can be replaced;
1500 measurements or when calibration cannot be completed. Sensors are sold separately and are easily removed and replaced.
Choose the best method according to your sample, your situation and your needs.
LAQUAtwin sampling sheet.
The sampling sheet allows trace volumes to be analysed. For example, you can even measure the pH of human skin by wiping with a sampling sheet soaked in pure water, and placing it on the sensor. Using the HORIBA sampling sheet, volumes down to 0.05 mL can be tested (except for conductivity measurements).
|For more information on this product please click the Request information button below and we will get back to you as soon as we can.|
|Alternatively, a consultation visit from one of our highly experienced product specialists is available for this range. Typically our specialist will be able to go through the following aspects with you to help you make the right choices and be able to deliver them on time and and on budget.
|The links above will take you to our request information page which will forward your enquiry to our team. Please provide as much detail as possible so that we can get back to you with the right information. We normally aim to get back to you same day or within 24 hours on weekdays. If you enquiry is more urgent please call our support team on 01954 233 120|
Check items to add to the cart
LAQUAtwin Nitrate sensor for B-34x & B-74x and NO3-11
£212.93 excl. VAT
£255.52 inc. VAT
Std solution set nitrate 150 ppm (6x14 ml)
£61.45 excl. VAT
£73.74 inc. VAT
Std solution set nitrate 2000 ppm (6x14 ml)
£61.45 excl. VAT
£73.74 inc. VAT