ExStik II Series Meters

Provide great versatility in measuring Conductivity, TDS, Salinity, pH or Dissolved Oxygen. Ideal for water quality monitoring.

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Exstik PH100 pH Meter

Informative video shows you how to calibrate a pH meter and measure pH levels with the Exstik PH100 meter. The pH meter is great for use in measuring soil samples.
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Exstik CL200 Chlorine Meter

Learn how to use and calibrate a chlorine meter. The Exstik CL200 is great measuring pool chlorine levels and wastewater compliance.
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Exstik DO600 Dissolved Oxygen Meter

What is DOS? Dissolved oxygen is one of the best indicators of the health of a water ecosystem. Dissolved oxygen can range from 0-18 parts per million (ppm), but most natural water systems require 5-6 parts per million to support a diverse population. DO is measured either in milligrams per liter (mg/L) or "percent saturation." Milligrams per liter is the amount of oxygen in a liter of water. Percent saturation is the amount of oxygen in a liter of water relative to the total amount of oxygen that the water can hold at that temperature. The DO600 meter displays both oxygen saturation and concentration readings and has adjustments for altitude and salinity levels.
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Exstik EC400 Conductivity/TDS/Salinity/Temp Meter

What is Conductivity? Conductivity is a measure of the ability of water to pass an electrical current. Conductivity in water is affected by the presence of inorganic dissolved solids such as chloride, nitrate, sulfate, and phosphate anions (ions that carry a negative charge) or sodium, magnesium, calcium, iron, and aluminum cations (ions that carry a positive charge). Organic compounds like oil, phenol, alcohol, and sugar do not conduct electrical current very well and therefore have a low conductivity when in water. Conductivity is also affected by temperature: the warmer the water, the higher the conductivity. For this reason, conductivity is reported as conductivity at 25 degrees Celsius (25 C).

As an example conductivity is useful as a general measure of stream water quality. Each stream tends to have a relatively constant range of conductivity that, once established, can be used as a baseline for comparison with regular conductivity measurements. Significant changes in conductivity could then be an indicator that a discharge or some other source of pollution has entered a stream. The EC400 is a high accuracy multi-range meter which measures four parameters (Conductivity, TDS, Salinity and Temperature).
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Exstik RE300 ORP Meter

What is ORP? It is a term used frequently in the water treatment & food processing industry. ORP stands for Oxidation-Reduction Potential. ORP is a measure of the cleanliness of the water & its ability to break down contaminants”. It has a range of –2,000 to + 2,000 and units are in “mV” (millivolts). ORP sensors work by measuring the dissolved oxygen. More contaminants in the water result in less dissolved oxygen because the organics are consuming the oxygen and therefore, the lower the ORP level. The higher the ORP level, the more ability the water has to destroy foreign contaminants such as microbes, or carbon based contaminants. 
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Extech 445815 Humidity Meter with Dew Point

Large, easy-to-read triple LCD displays % Relative< Humidity, Temperature and Dew Point
%RH audible and visual alarms, with adjustable set points, alert when humidity exceeds set limit

Applications:
• In summertime, identifies and warns when conditions for mold growth exist
• Remote probe allows for measurements behind walls or in difficult to access locations
• Air temperature and dew point temperature indicate where condensation may occur
• Monitor conditions in laboratories, storage areas and other controlled environment settings
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Extech RH520 Humdity & Temperature Datalogger

Best value paperless chart recorder in the market that's easy to set up and operate. Simultaneous numerical and
graphical display of Humidity and Temperature readings, plus Time and Date.

Applications:
•Monitor clean rooms or controlled environments like freezers or storage areas
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Extech RPM10 Combination Tachometer + IR Thermometer

Photo/Contact Tachometer includes a non-contact IR Thermometer for surface temperature measurements.

• Built-in IR thermometer with laser measures remote surface temperature on motors and rotating parts
• Provides wide RPM (photo and contact) and Linear Surface Speed (contact) measurements
• Non-contact Photo tachometer uses a Laser for greater measuring distance up to 6.5ft (2m)
• Characters on display reverse direction depending on mode
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Extech/ Flir Infrared Thermal Imaging Camera

The new and improved SD model of the InfraCAM gives you more image storage, more image quality and more post-processing capabilities. Detect hot spots, avoid electrical failures, increase safety and even prevent fires.
• Stores 1,000 JPEG images
• Long 7 hour battery life
• Built-in laser locator
• Includes new, powerful QuickReport Software
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