$100 - $150, Oakton Instruments

WD-35820-62 Industrial Conductivity Cell, 25 ft Cable, Epoxy Body, Graphite Sensor, K=1.0. Requires Threaded Housing; Order Separately (Use with CON 100, CON 200, CON 1000, and RES 1000 controllers) by Oakton

Feature built-in temperature compensation

• Designed for continuous in-line monitoring
• Feature stripped ends for easy wiring

Choose from three different cell constants:

• K = 1.0 for midrange conductivity measurements.
• K = 10.0 for high conductivity measurements (near or above 20 mS)
• K = 0.1 for low conductivity measurements (near or below 20 µS)
• K = 0.01 for resistivity measurements (at or below 2 µS)

Install these rugged cells in a pipeline, or submerse in a tank.

Dimensions: 142 mm L x 12 mm dia. Shpg wt 0.5 lb.

WD-39643-00 Digi-Sense Palm-Sized Infrared Thermometer by Digi-Sense

Laser sighting and adjustable emissivity at an economical price

This infrared thermometer provides quick and accurate temperature measurements. View the current temperature, temperature scale (°F or °C), and battery life icon on the large LCD. Two battery compartments provide power to the thermometer and laser separately.

This gives the flexibility to measure temperature without the laser sighting if the laser battery is weak. Other features include selectable °F/°C, min/max measurements, lock function for continuous monitoring, automatic data hold, auto off, and battery life icon.

• Includes CR2032 batteries (2)
• Compact, ergonomic design provides a comfortable fit during use
• Fits perfectly in your hand or pocket

WD-35807-30 Teflon-junction, CPVC-body pH Electrode (Use with pH 100, 200, 800, and 1000 controllers) by Oakton

A. In-line submersible electrodes feature a probe guard to protect sensor from damage. They can be placed in a tee fitting for in-line use. CPVC body with 3/4" NPT thread on both ends withstands temperatures up to 80°C.

B. Submersible electrodes are permanently encapsulated in a 3-ft pipe - perfect for tank installation. ABS plastic body withstands temperatures up to 80°C.

C. Semi-domed bulb electrodes with solution ground have a unique surface design that protects electrode from particulates and increases flow across the junction to keep the bulb clean. Graphite body acts as a solution ground. Withstand temperatures up to 100°C.

D. Self-cleaning flat electrodes have an innovative flat surface that prevents solids buildup. CPVC body with 3/4" NPT thread on both ends withstands temperatures up to 80°C.

E. PTFE junction electrodes are excellent for simple wastewater applications. PTFE junction and polymer gel reference electrolyte resist clogging. CPVC body with 3/4" NPT thread on both ends withstands temperatures up to 80°C.

F. PTFE junction electrodes with solution ground are excellent for tough wastewater applications. Solution ground pin eliminates ground loop and electrical noise problems. PTFE junction and polymer gel reference electrolyte resist clogging. Ryton body with 3/4" NPT thread on both ends withstands temperatures up to 100°C.

• Include BNC connector
• Built-in Pt RTD sensor with stripped ends for temperature (ATC) element
• ORP electrodes feature Pt band sensor
• Use electrodes with solution ground with our pH 200, 800, or 1000 controllers in areas with high electrical noise

WD-03313-70 Wall Mount Thermo-Hygrometer with Glass Thermometer by Digi-Sense

This compact instrument requires no batteries or power

Use this economical thermohygrometer for relative humidity and temperature readings in your lab, office, or computer room. It s small size makes it ideal for areas with limited space.

• Monitor humidity and temperature
• Features alcohol-filled thermometer with °F/°C temperature scales

WD-35805-13 Platinum Band Sensor, Single-junction, Epoxy-body, Gel-filled ORP Electrode (Use with all OAKTON pH meters except pH Wand and pH/CON 10) by Oakton

Use with any meter with a BNC connector

Choose a single junction electrode for field, clean water, and general purpose applications. Choose a double junction electrode for most applications, including dirty water, heavy metals and organics applications.

All electrodes have a BNC connector, and are 12 mm dia with a 3 ft cable (except submersible electrode, which is 25 mm dia with a 10 ft cable). We offer many other pH and ORP electrodes for specialty applications.

• Each 12 mm electrode includes a FREE electrode saver bottle to extend electrode life
• Use ORP electrodes with meters that read mV to take REDOX readings