LaMotte 1742 ORP Tracer PockeTester, +/-999mV Range, +/- 4mV Accuracy, 1mV Resolution

Manufacturer: COLE-PARMER Brand: Cole-Parmer

In-line or submersible electrodes with probe guard operate from 23 to 176°>F (-5 to 80°>C) and have a PVC housing with a 3/4'' NPT(M) fitting on both ends. Epoxy body withstands pressures to 100 psi. Measure pH from 0 to 14. All electrodes measure 6-3/4''L x 1'' OD, with a 1-3/4'' insertion depth. Note: 100Ω RTD ATC elements are platinum and conform to DIN curve 43760. ATC connector is miniature audio plug. Connector for the 1 kΩ RTD and the 3 kΩ Balco ATC elements is a spade lug. Connector for 100 kΩ thermistor ATC elements is a standard 1/4" phone plug.

Manufacturer: J-so Brand: J-so Color: PH 2

TDS meter (aka ppm pen, nutrient tester, tds stick) is an inexpensive and convenient digital tool to instantly check your overall water quality. TDS = Total Dissolved Solids, which is any salt, metal or mineral in the water. With the push of a button, the TDS-EZ can tell you your overall water purity level, which will be displayed on the screen in ppm (parts per million). The lower the TDS level, the purer the water, with 0 ppm being pure H2O. The TDS-EZ is great for checking your tap water quality, or knowing when to change a filter. (The meter does not test for biological contaminants.) The TDS-EZ is a great tool for drinking water, water filtration and purification, hydroponics (test your nutrients), aquariums, RO/DI systems, pools and spas, and more.PH penprovides more reliable accuracy and durability for testing the acidity or alkalinity of liquids. It is very easy to use - just immerse the electrode and the readings are automatically displayed. With a resolution of 0.01pH and a 0.05pH range of error, yo...

Manufacturer: iPower Distributor L&G Brand: Bluelab

Can be used undiluted with the Bluelab pH Controller and Bluelab pH Controller Connect;They're manufactured with premium quality acid/alkali concentration;Has excellent quality

Manufacturer: Extech Brand: Extech Model: PH113

' KCL Solution, Application Refill Solution For PH110 Ph Meter Using The Ph115 Electrode, Features Extends The Life Of The Ph Electrode, For Use With PH110 pH Meter Using The PH115 Refillable Electrode, Includes Kcl Solution, Manufacturers Warranty Length 1 Year '

Manufacturer: COLE-PARMER Brand: Oakton

ORPTestr 10 features a replaceable double-junction platinum electrode - ideal for checking dirty water, heavy metals, sulfides, and organics. Valox®electrode body resists most chemicals. Use these versatile instruments for applications ranging from swimming pool testing to pulp bleaching. Meter features ±2 mV accuracy and a ±150 mV offset. Housing allows you to attach a lanyard (included) for easy retrieval. Additional features include a hold function, auto-off function, self-diagnostic error messages, and a three-segment battery-life indicator. Ideal for checking chromate reduction, cyanide oxidation, and other ORP readings Large, horizontal readout IP67-rated housing floats in water and sits flat on a hard surface

Manufacturer: Milwaukee Instruments Brand: Milwaukee

Milwaukee pH56 LED Waterproof Dual Level Pocket pH/Temp Tester with Replaceable Electrode, -2.00 to 16.00 pH, +/-0.05 pH Accuracy, 0.01 pH Resolution offers durability and reliability.

Manufacturer: OlymStore Brand: Olymstore

Features: 1. Operating Temperature: 0~50℃ 2. Power: 4 x 1.5V Batteries(AG-13 Button Battery) 3. Dimensions:17.5 x 3 x 2.2cm 4. With pen type waterproof design, this PH meter is easy to handle and simple to store 5. A large LCD display is incorporated giving clear and precise results 6. This PH meter can instantly test your liquid for acid or alkaline 7. Accurate results every time, tester is easy to calibrate at home for making adjustments when necessary 8. Deal instrument for aquarium, fishing industry, swimming pool, school, laboratory, food & beverage etc Package Includes: 1 x Waterproof pH Meter 1 x Manual

Manufacturer: COLE-PARMER Brand: Cole-Parmer

Glass body combination probes are able to withstand higher temperatures and chemical attack. All have 3.3 ft (1 m) long cables with BNC connectors. Faster response and increased stability across a pH range of 0 to 14 Dome bulb offers better protection from breakage Stability in low-ionic strength solutions Offers resistance to Na+ ion interference Compatible with most brands of pH meters (that accept standard BNC connections)

Manufacturer: iPower Distributor L&G Brand: Bluelab Model: BLU4250 Color: clear

PH measuring equipment must be cleaned and calibrated regularly to ensure they are giving the user accurate readings. pH instruments are calibrated to pH 7.0 first (buffer) then to pH 4.0 (slope). Calibration Solutions should be stored in a cool place out of direct sun and heat. They should be stored with the lids securely tightened.