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Environment & Scientific test instruments, meters & loggers
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Environment Meters

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Anemometers
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Anemometers

An Anemometer is used to measure air speed with some versions also measuring air flow. There are different types of anemometers depending on how you are planning to use them and your application. If you want to measure wind speed outside and you are not concerned about wind direction then a Cup anemometer would be the meter you are looking for. Vane and mini vane anemometers must be held in the direction the wind is coming from to get the most accurate reading possible, these units are used both inside and outside and can measure a wide variety of air speeds. To measure very low airspeeds a hot wire anemometer is best suited to your application, these units are extremely precise and work wonderfully at low air speeds, they are quite delicate however so care must be taken not to damage the sensor when using them.

Air flow meters can determine the air flow, which is the volume of air not just the speed of the air; these are extremely useful in HVACR applications. When taking air flow measurements the accuracy of your results will be greatly increased when using an Air Flow Hood which is used to capture all the air flowing from an outlet.

We also have available wind data loggers for recording the air speed over time; this can be used to assess the amount of wind an outside site is exposed to over a long term basis. This data is saved and then graphed to your computer for further analysis. Another way of measuring outside air speed and direction is by using one of our weather stations, these can also be used to record a number of different weather parameters giving you a versatile weather recording option.

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Chlorine Meters
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Chlorine Meters

As their name suggests Chlorine Meters measure the chlorine content of liquids. Most of our units also measure a number of different parameters including pH, temperature and ORP, this gives you a very diverse water quality tool. As with most water quality meters, chlorine meters should be calibrated to ensure you get a long life and the most accurate results possible from your meter.

If you are purely after a meter which measures chlorine then our CL200 meter is a great option, it is extremely accurate and fast to use, this is one of our most popular chlorine meters. Our EX900 meter is one of our most diverse units, it is small, durable and very easy to use which is exactly what you want when out in the field.

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Colorimeters
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Colorimeters

Colorimeters are used in the analysis of water quality and have many different uses including testing swimming pool water, spas, public utilities, industrial waters water, treated water, water conditioning systems and paper & pulp mills etc. Different colorimeters can measure different combinations of chemicals found in water, so not every meter suits all applications. It is best to ask one of our Customer Service Representatives to guide you in the right direction.

The meters can measure a variety of chemicals including (but not limited) to Bromine, Chlorine, Chlorine Dioxide, Ozone, Cyanuric Acid and pH. As with most water quality meters it is extremely important to calibrate your unit before each use using a dedicated calibration solution which you will find in the accessories tab of each meter, this ensures that your meter is always giving you the most accurate results possible.

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Conductivity, TDS, Salinity Meters
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Conductivity, TDS, Salinity Meters

Conductivity, TDS and Salinity are different water quality parameters which can all be measured by the same conductivity meter depending on the model. Conductivity meters work by using electrical conductivity to measure the quantity of ions in an aqueous solution, the more ions the more conductive the solution is. The temperature of the liquid you are testing can also affect how your meter reads the conductivity of the solution, it is therefore important to buy a meter which has Automatic Temperature Compensation of ATC, this means that the meter will automatically cancel out the affects of temperature on your readings giving you a consistent result.

Conductivity meters come as handheld pen testers, handheld meters and bench meters. When selecting the conductivity meter you need, ensure that it will measure the correct range that you need to measure and that it has the accuracy and resolution you need. For use in the field you may want to consider the waterproof units available for a more robust option and as always with water quality meters a relevant calibration and storage solution is a must to ensure a long working life for you unit.

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Dial-Analogue Thermometers
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Dial-Analogue Thermometers

Dial Analogue thermometers are an aesthetically please way to monitor and display the air temperature in the home or office environment. Our customers often buy these units as gifts as they look great in any room, veranda, deck or boat. However analogue meters are not as accurate as digital meters as you have a degree of human error in reading the temperature off of the dial. This is not generally a problem when they are being used around the home, but it is something to consider when purchasing a unit.

Many analogue thermometers are also able to measure and display humidity which means the units not only look good but are also more versatile.

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Dissolved Oxygen Meters
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Dissolved Oxygen Meters

A Dissolved Oxygen Meter measures the amount of dissolved gaseous oxygen in a solution, both nitrogen and oxygen will just dissolve in water without chemically reacting to it and they exist as microscopic bubbles in-between the water molecules. There are a number of different types of DO Meters including handheld, bench type and waterproof options, you need to consider which type is best suited to your particular application. Many different industries use DO meters including aquariums, medical research, agriculture, laboratories, paper processing, sewage treatment, mining etc. Regardless of the industry you are from or the type of meter you purchase it is very important to regularly use calibration solution with your meter to ensure you receive the most accurate results possible.

When using a dissolved oxygen meter you must be aware that the dissolved oxygen is affected and varies with temperature (the higher the temperature the lower the DO), the salinity (the higher the salinity the lower the DO) and atmospheric pressure (the lower the atmospheric pressure the lower the DO). Some selected DO meters can compensate for these variables, if you are unsure about any of these variables then you can call us on 1300 737 871 for help selecting the best option for you.

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Gas Detectors
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Gas Detectors

From flammable gas to carbon dioxide and carbon monoxide, gas meters and detectors are a very important part of workplace OH&S, they are used across a broad range of industries from mining, manufacturing to HVACR.

Many of the gas detectors have an audible and visual alarm which sounds when a hazardous gas is detected; these meters are an essential component of PPE in high risk places.

Different detectors can test for different gasses, it is important to make sure you research which gasses you need to be testing for before you purchase a unit. If you know what gasses you want to test for then you can buy a multi-function unit which can detect them all.

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Heat Stress Meters
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Heat Stress Meters

By measuring the heat stress you can get a clear picture of how environmental factors lead to heat stress and enable you to help avoid heat exhaustion in public health, sports, military and industrial activities.

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Humidity Meters & Hygrometers
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Humidity Meters & Hygrometers

Humidity Meters measure the amount of water vapour present in the air, this is usually represented as a percentage known as relative humidity (%RH). We have many different types of humidity meters which suit many different applications. Meters with handheld external probes are great for measuring in tight hard to reach places, meters with a large easy to read display are great for use in offices or rooms where you want to glance at the meter and read the humidity easily. You can also get humidity meters with alarms which will let you know when the humidity has gone outside a pre determined range, and if you would like to monitor the humidity over time then we have a range of humidity loggers which will allow you to do this.

Some humidity meters will also measure Dew point. Dew point is the temperature point which air needs to be cooled at a constant pressure for water vapour to condense (and form dew). A Psychrometer is a meter that will measure Wet bulb and dry bulb temperature allowing you to either calculate relative humidity or a digital version will calculate this for you.

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IR Thermometers
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IR Thermometers

An Infrared Thermometers (IR Thermometers) are also known as Non-Contact or Laser Thermometers. They can be pointed at the surface of an object and they will measure the temperature of the surface by measuring Infrared light emitted from the object. They are a great tool allowing you to measure the temperature at a distance from the object you want to measure.

You will see the term ‘the distance to spot ratio’ used a lot when reading about IR thermometers. It is a ratio of the distance you are from the surface you want to measure, related to the size of the area you will be measuring. For example, an IR thermometer with a 1:1 spot ratio will measure the average temperature on a surface with an area with diameter of 1m at a distance of 1m. The distance to spot ratio is important when considering how accurate you need your meter to be, in general the larger the spot ratio, the more accurate the meter is as it focuses on a smaller spot on the objects surface. It is also important to consider the type of object you will be measuring; is it shiny and reflective? If your object is shiny and reflective then this could interfere with the reading you get from your IR Thermometer, the duller and darker the object the easy it is to get an accurate temperature reading, if you are in doubt about whether a non-contact thermometer is suitable for your application then feel free to call and talk to one of our qualified scientists.

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Light Meters
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Light Meters

A light meter is used to measure the amount of light in your location. Our standard light meters measure light in Lux, lumens and/or foot candles, the UV light meters (which measure UV light) measure in uW/cm2.

Light meters have a wide variety of applications but are used mainly to determine if there is enough light in certain situations. For occupational health & safety they are used to check the light levels in a workplace and councils use light meters to check if street lighting is adequate. Manufacturers of lighting equipment will use light meters to test the level of light coming from their products. Animal researchers also use light meters to test the light levels in breeding areas and habitats.

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Moisture Meters
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Moisture Meters

To detect moisture levels in materials you need a moisture meter, these meters will give you a reading of how much moisture is present. The general meters are used in building materials, including wood, concrete, plasterboard and masonry. The soil moisture meters can be used in the ground in gardens, on farms and on building sites. The Grain/Hay meters will give you a reading of the moisture present within the grain or hay easily.

For the general building material type moisture meters there are pin type meters and non-destructive meters (and combined). The pin type meters will give you a reading of the moisture between the two pins, ideally the pins should be pushed into the material being tested. The non-destructive meters are held against the material and with a signal they test moisture levels below the surface.

Typically for measuring moisture in air you would use a humidity (or RH) meter, there is another category on our website for these type of meters.

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ORP Meters
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ORP Meters

ORP or Oxidation Reduction Potential meters are similar to pH meters but require a different sensor and the measurement is in mV. Some pH meters however will allow you to measure ORP when used with an optional specialised ORP probe.

ORP is a measure of the cleanliness of the water & the ability of the water to break down contaminants. ORP meters are often used in swimming pool water, pulp bleaching, cooling towers, aquaculture, drinking water testing and processing.

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Other Water Quality
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Other Water Quality

Specialised water quality meters to measure Sodium Ion, Pottasium Ion, Nitrate Ion or Calcium Ion.

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pH Meters
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pH Meters

pH is a measure of the acidity or alkalinity of a substance. pH meters will typically measure the pH of a liquid, but with a specialised probe they can also measure surfaces, and in semi-solids such as cheese and soil.

pH meters will need calibration on an ongoing basis to ensure they are always reading correctly. pH Buffer solutions are liquids of a known pH that can be used to test and calibrate the meter. pH 7.0 (neutral) is the most common buffer solution to start with and then pH 4.01 and pH 10.01 allow you to calibrate for more acidic and basic measurement applications. Other buffer solution standards are available on request for specific applications.

The pH electrodes (the sensor part of the meter) need to be treated with care, they are often fragile and need to be kept clean and moist when not in use.

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Plant Meters
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Plant Meters

Measure various factors in the growth of plants with our range of Plant Meters.
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Psychrometer
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Psychrometer

Meters which give you readings of wet bulb and dry bulb temperatures along with humidity.

Typically a psychrometer consists of two thermometers, one with a dry bulb and one with a wet bulb. The electronic versions of these are able to measure the wet bulb temperature without having moisture present, making it a much more straight forward measurement, the electronic versions will typically give you a RH% (humidity) value as well.

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Sound Level Meters
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Sound Level Meters

Hand held meters, data loggers and fixed displays for measuring and recording sound levels in dB. Monitoring sound levels is important for occupational health and safety as well as in situations where your equipment, music or crowds of people can be too loud.

Sound level meters are generally described as Class 1 or Class 2. Class 1 sound meters have a tighter tolerance to error and a wider frequency range than class 2 meters. For most applications a Type 2 meter is suitable. We also have personal dosimeters available to monitor the sound levels experienced by a person on site, these are attached to a person's clothing and will record the dB levels reached over time.

The Sound level data loggers allow you to have the meter left on location to measure and record the fluctuations in sound level over time. This data can then be downloaded to your computer for graphing and analysis.

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Temperature Meters
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Temperature Meters

A broad selection of temperature meters are available including basic stem thermometers, IR thermometers, fridge freezer thermometers, wireless thermometers along with RTD and thermocouple probe thermometers. The meters will measure temperature in Celsius and Fahrenheit.

Our most popular are the stem thermometers and fridge/freezer thermometers, they are used in applications ranging from cooking, to laboratory, to temperature sensitive transport applications.

The IR thermometers allow you to measure the temperature of an object without touching, you just point and shoot at the object and the meter gives you an instant reading.

Different sensors are available for the thermocouple thermometers, you need to be careful on the type of sensor to use with each meter, please call 1300 737 871 for advice on the best sensor for your application.

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Thermal Cameras
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Thermal Cameras

Unlike normal cameras which take pictures of visible light, thermal cameras (or infrared thermal cameras) take pictures of invisible infrared radiation. You will commonly experience infrared radiation as heat. This means that thermal cameras can be used to take images which show how much thermal energy or heat an object is emitting.

As thermal cameras can take images of things that would be invisible to the normal eye, they can be used for a wide variety of different applications. These include buildings and pest inspections, preventative maintenance, medical and veterinary checks along with research and development.

Thermal cameras can be used very effectively in situations where infrared thermometers (temperature guns) have had limited success in the past. This is because standard infrared thermometer take an average reading over a large area, their accuracy is thus limited and you run the risk of missing small hot spots. An infrared thermometer will allow you to measure one spot at a time, whereas even an entry level thermal imaging camera will allow you to see 3,600 points at a time, capturing all the information you need without missing a thing.

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Turbidity Meters
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Turbidity Meters

Turbidity is a measure of the haziness or cloudiness (caused by suspended solids (particles)) of a liquid. By inserting a liquid sample in a turbidity meter you can get a quick and easy reading of the turbidity levels.

Turbidity can indicate the presence of pathogens, bacteria and particles that can shelter potentially harmful organisms from disinfection processes. Turbidity meters are used to measure turbidity in lakes, streams, rivers and estuaries as well is in water treatment applications.

Calibration standards are used to ensure the meter is calibrated and is working correctly, these are supplied with the kits but will need replacing over time to ensure accurate results.

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Weather Stations
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Weather Stations

Get a clear indication of the weather in your location. Weather Stations are instruments used to measure atmospheric conditions including temperature, humidity, rainfall, wind speed/direction, barometric pressure plus more, depending on the station.

A home user might just have an interest in the weather and would love to know the conditions at their house. But a professional user may have to meet certain regulations or run experiments in specific locations.

A basic weather station great for a home user starts with a measuring temperature and humidity along with barometric pressure. For more measurements you may like to look at a station which also measures precipitation (rainfall), wind speed and wind direction.

For companies and organisations who need to measure weather parameters, our professional range of weather stations have improved accuracy and long term performance.

Applications for the entire range of weather stations include home, farming/agriculture, mines, civil engineering, defence, research, road construction along with OH&S.

Data logging weather stations are available to record information over time and some options will allow you to upload the information to the internet for remote observations. With tripod and mounting accessories available along with solar panels for remote setups Instrument Choice has an option to suit you.

Call our weather station experts on 1300 737 871 to help you get the best weather station for your requirements.

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Products

Compact pH Meter LAQUA twin 2 point calibration - B-712

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Product Code : B-712

Compact pH Meter LAQUA twin 2 point calibration, pH6.86, PH4.00, accurate pH measurements in a few seconds, from a single drop.*
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    Free Delivery is available to anywhere in Australia!

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    $623.00 + GST

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Manuals, Specifications & Datasheets

Compact pH Meter LAQUA twin 2 point calibration - B-712
 

Product Description

Accurate pH measurements in a few seconds, from a single drop.*

Water pH varies in different environments, and a slight change can often have a major effect.

Whether you need to keep the pH of an aquarium within tight limits, are checking for the acidity of rain water or for the quality of meat and fish products, LAQUAtwin compact pH meters are ideal for you. No matter where and when you need to test.
 
Applications include:
Fresh water testing (rain, rivers, lakes, hot springs); aquaria; drainage treatment solutions; soil testing for improved agriculture; fermentation and brewing; food freshness testing; research laboratories; QC of medical supplies and cosmetics; preventative dentistry; school education, etc.
 
* Minimum volume required - 0.1 mL (0.05 mL when using the HORIBA sampling sheet. Additional sampling sheets available from HORIBA as 100pc/box)

MODEL

B-711

B-712

 

Measurement principle

Glass electrode method

Minimum
sample volume

0.1mL or more *1

Measurement range

2 to 12pH

Display range

0 to 14pH*2

Range and Resolution (Valid numbers)

0.1pH

0.1/0.01pH
(Selectable)

Calibration

One-point

Two-point*3

Accuracy

±0.1pH *4

Functions

Temperature compensation?Waterproof*5?Auto hold?Automatic power off?30 minutes?

Display

Custom (monochrome) Digital LCD

Operating
temperature/humidity

5 to 40?C, 85% or less in relative humidity (no condensation)

Power

CR2032 batteries (x2)

Battery life

Approx. 400 hours in continuous use

Main Material

ABS epoxy

Dimensions
/Mass

164mm × 29mm × 20mm (excluding projections)?/ Approx. 50 g (meter only, without batteries)

Accessories
included

2 CR2032 batteries/1 Pipette/Instruction manual/Quick manual/Storage case

Standard solution

(pH6.86)(14mL)

5 pieces of Sampling sheetB

Standard solution

(pH4.01&pH6.86) (14mL)

5 pieces of Sampling sheetB

*1 Smaller amount(0.05mL or more) can be measured with the sampling sheet B. (Please close the light shield cover. If a sample that contain particulate, please use ”Sampling sheet holder” (sold separately))
*2 When the measured value is out of the measurement range, the displayed value blinks. It should be used only as a guide.
*3 Selectable between one-point and two-point calibrations.
*4 Repeatability in measurement of a standard solution after calibration using the same standard solution.
*5 IP67?no failure when immersed in water at a depth of 1 meter for 30 minutes. But the product can not be used underwater.

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Why Choose Instrument Choice

At Instrument Choice we promise you great customer service with expert advice from scientists, helping you select products suited to your specific application, delivered direct to your door.

 
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Contact our expert scientists now to get the right meter or data logger to suit your needs and discuss your project. 


Phone: 1300 737 871
Email: customer-service@instrumentchoice.com.au

 


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Handheld and fixed instruments for testing the environment around you. Including wind meters, thermometers, sound meters, water quality testing systems and weather stations.