Ion and pH meters are electrochemical equipment used to measure the pH (acidity or alkalinity) or specific ion concentration of a solution. Other meters can also measure the conductivity or dissolved oxygen content of a solution. pH meters, specific ion meters, conductivity meters and dissolved oxygen meters can come as benchtop or portable equipment. A meter’s electrodes can be replaced with easy to clean electrodes or electrodes for difficult media. pH, ion and conductivity meters are typically used in life science research, pharmaceutical testing, food and beverage, environmental and water analysis. Find the best pH meters and electrodes in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.
Get high accuracy, premium performance, and ultimate flexibility with the Thermo Scientific™ Orion™ Versa Star Pro™ pH/ISE/Conductivity/Dissolved Oxygen Multiparameter Benchtop Meter
Record accurate and reliable pH, mV, ORP and temperature measurements with the Thermo Scientific™ Orion Star™ A211 Benchtop pH Meter.
Get quick, reliable and accurate measurements of dissolved ammonia in aqueous solutions with the Thermo Scientific™ Orion™ Ammonia Gas Sensing ISE Electrode.
Measure biological media, pharmaceuticals, foods and more with Thermo Scientific™ Orion™ ROSS Ultra™ Refillable pH/ATC Triode™ Combination Electrodes. They are ideal for any application where the use of metallic reference electrodes would contaminate the samples. ROSS Ultra pH/ATC electrodes offer more flexibility, accuracy and precision for your pH measurement needs. With built-in temperature sensors, these electrodes offer…
Measure micro volume samples with the Thermo Scientific™ Orion™ PerpHecT™ ROSS™ Combination pH Micro Electrode. A PTFE protective sleeve over the glass stem provides greater durability than conventional micro pH electrodes and allows pH and temperature measurement of samples in 384 well plates or samples.
Get stable readings to 0.01 pH in less than 30 seconds with the Thermo Scientific™ Orion™ ROSS™ Combination pH Electrode. This double-junction electrode is TRIS compatible and provides results three to five times more precise than those obtained with conventional electrodes, even in extreme cases of samples varying from one another by 50°C or more. Drift is less than 0.002 pH per day, restandardization is minimized.
Get results three to five times more precise than those obtained with conventional electrodes with the Thermo Scientific™ Orion™ ROSS™ Combination Rugged Bulb pH Electrode. This instrument provides stable readings to 0.01 pH in less than 30 seconds.
Get results three to five times more precise than those obtained with conventional electrodes with the Thermo Scientific™ Orion™ ROSS™ Combination pH Electrode. Built to provide stable readings to 0.01 pH in less than 30 seconds. The epoxy body makes this durable electrode ideal for rugged environments. The electrode is accurate even in extreme cases of samples varying from one to another by 50°C or more. Drift is less than 0…
Receive stable readings to 0.01 pH in less than 30 seconds with the Thermo Scientific™ Orion™ ROSS™ Combination Semi-micro pH electrode. The semi-micro tip fits test tubes and helps measure samples as small as 0.2 mL. Results are three to five times more precise than those obtained with conventional electrodes, even in extreme cases of samples varying from one another by 50°C or more. Drift is less than 0.002 pH per day, rest…
Get stable readings to 0.01 pH in less than 30 seconds with the Thermo Scientific™ Orion™ ROSS™ Combination Flat Surface pH Electrode. This electrode measures pH of soft, moist surfaces - both solid and semi-solid - such as agar gel plates, meats, bread dough and similar samples. It's results are three to five times more precise than those obtained with conventional electrodes, even in extreme cases of samples varying from on…
Ideal for pH measurement in semi-solid food material, such as cheese, meat, fruit, bread and other similar samples, calculate results three to five times more precise than those obtained with conventional electrodes with the Thermo Scientific™ Orion™ ROSS™ Combination Spear Tip pH Electrode. This electrode provides stable readings to 0.01 pH in less than 30 seconds, even in extreme cases of samples varying from one another by…
Record accurate and reliable pH, mV, ORP, conductivity, total dissolved solids (TDS), salinity, resistivity and temperature measurements with the Thermo Scientific™ Orion Star™ A215 pH/Conductivity Benchtop Multiparameter Meter. This meter is ideal for a wide range of applications and advanced pH and conductivity analysis in the lab. Use the two meter channels to measure pH and conductivity simultaneously or view each channel…
Measure general pH samples as well as viscous or colloidal samples with the free-flowing sleeve junction design of the Orion 8172BNWP ROSS Sure-Flow pH Electrode.
AB41PH bench meter is designed with reliable measurement and precise performance in mind. The i-Steward ensures repeatable and consistent measurement accuracy for optimal peace of mind. The large LCD display and touch keypad makes changing the parameters, executing setup, and performing calibration as simple as using a smartphone.
AQUASEARCHER™ AB33M1 multi-parameter bench meter is designed with reliable measurement and user-interface in mind. The i-Steward ensures repeatable and consistent measurement accuracy for optimal peace of mind. The 6.5 inch LCD display and touch keypad makes changing the parameters, executing setup, and performing calibration as simple as using a smartphone.
AQUASEARCHER™ AB33EC bench meter is designed with reliable measurement and user-interface in mind. The i-Steward ensures repeatable and consistent measurement accuracy for optimal peace of mind. The 6.5 inch LCD display and touch keypad makes changing the parameters, executing setup, and performing calibration as simple as using a smartphone.
The DR359TX is an advanced, ion concentration meter which automatically calculates the relationship between two or more concentration standards and stores this in memory allowing unknowns to be read directly. Anion/cation recognition is automatic and up to 5 calibration points may be entered, enabling the user to cover a wide dynamic measurement range with just one calibration. The DR359TX also provides full pH facilities incl…
YSI 550A Dissolved oxygen meter - Portable dissolved oxygen meter YSI 550A The YSI 550A dissolved oxygen meter features a waterproof, impact-resistant case and innovative field-replaceable DO electrode modules. Measure dissolved oxygen and temperature simultaneously using YSI's proven polargraphic technology for oxygen and YSI Precision thermistors, the world wide standard for accuracy. Features of the YSI 550A DO meter includ…
