$200 - $300, LabSen Premium pH Electrodes, Apera Instruments

AI3104 LabSen 241-3 Glass-body pH Electrode for Micro Samples (>30 microliters) by Apera

Backed by proprietary Swiss sensor technology and premium materials, LabSen 241-3 Glass Micro pH Electrode is designed for micro-volume samples (≥30 microliters), especially suitable for microplates, microcentrifuge, and microbiological samples. With the ultra-micro container (sold separately), it can test as low as 15 microliters.

Unique Glass Membrane - LabSen 241-3 pH electrode adopts a micro cylindrical sensor tip (top end ø3mm, stainless steel ø4mm), making micro-sample pH testing easier than ever, and can be tested in high-temperature samples (up to 212°F). The stainless steel protective shaft ø4mm) ensures the durability of the slim glass tube.

Long-Life Reference System - composed of a glass tube, AgCl, and a reference silver wire. The top end of the slim glass tube is stuffed with cotton, which prevents the reaction between AgCl and electrolyte when the temperature changes. It improves the stability of the reference system and extends the electrode's service life.

The electrode uses a BNC connector, compatible with any pH meters that use BNC connectors. No temperature sensor is built-in. Users need to have a separate temperature probe (ex: Apera Instruments MP500) to enable ATC or manually input temperature to achieve temperature compensation.

• Proprietary pH sensor technology and premium materials from Switzerland
• Low-resistance LabSen® micro cylindrical glass membrane, suitable for micro-volume pH measurement (>30 microliters)
• The stainless steel protective shaft ensures the durability of the slim glass tube
• Long-Life Reference System, improving the stability of the reference and extends the electrode's service life
• With the micro container (sold separately), it can test as low as 15 microliters.

AI3151 LabSen 241-3SP Glass-body Micro pH Electrode for Micro-Volume Solutions Containing Proteins by Apera

Backed by proprietary Swiss sensor technology and premium materials, LabSen 241-3SP Glass Micro pH Electrode is designed for micro-volume samples (≥30 microliters) containing proteins such as serum and microbiological samples. With the ultra-micro container (sold separately), it can test as low as 15 microliters.

Unique Glass Membrane – LabSen 241-3SP pH electrode adopts a micro cylindrical sensor tip (top end ø3mm, stainless steel ø4mm), making micro-sample pH testing easier than ever, and can be tested in high-temperature samples (up to 212°F). The stainless steel protective shaft ø4mm) ensures the durability of the slim glass tube.

Protelyte electrolyte – A specialized oily reference solution made for protein solutions and viscous samples.

Long-Life Reference System - composed of a glass tube, AgCl, and a reference silver wire. The top end of the slim glass tube is stuffed with cotton, which prevents the reaction between AgCl and electrolyte when the temperature changes. It improves the stability of the reference system and extends the electrode's service life.

The electrode uses a BNC connector, compatible with any pH meters that use BNC connectors. No temperature sensor is built-in. Users need to have a separate temperature probe (ex: Apera Instruments MP500) to enable ATC or manually input temperature to achieve temperature compensation.

• Proprietary pH sensor technology and premium materials from Switzerland
• Low-resistance LabSen® micro cylindrical glass membrane, suitable for micro-volume pH measurement (>30 microliters)
• Protelyte electrolyte made for protein-containing solutions such as serum and microbiological samples.
• The stainless steel protective shaft ensures the durability of the slim glass tube
• Long-Life Reference System, improving the stability of the reference and extends the electrode's service life
• With the micro container (sold separately), it can test as low as 15 microliters.

AI3108 LabSen 801 Glass-body pH Electrode for Purified Water& Low Ion-Concentration Solutions by Apera

Built with proprietary sensor technology and premium materials from Switzerland, Apera LabSen 801 Glass-body pH Electrode is made for pH measurements of pure water such as distilled and deionized water, and other low ion concentration solutions.

LabSen L-type glass membrane - fast response in low ionic strength solutions thanks to its ultra-low resistance formula (>50M&Omega), providing fully stabilized readings in 30 to 60 seconds.

Movable Sleeve Junction - easy to clean, especially suitable for low ionic strength solutions, emulsions, and suspensions. The infiltration rate of the electrolyte can be adjusted by the tightness of the sleeve.

Silver Ion Trap Reference System - On top of the Long-Life reference system, a silver ion trap is added to further prevent junction clog.

The electrode uses a BNC connector, compatible with any pH meters that use BNC connectors. No temperature sensor is built-in. Users need to have a separate temperature probe (ex: Apera Instruments MP500) to enable ATC or manually input temperature to realize temperature compensation.

• Proprietary sensor technology and premium materials from Switzerland
• Built with LabSen L-type glass membrane for low ionic strength solutions
• Movable Sleeve Junction - easy to clean, adjustable infiltration rate
• No more air bubbles inside the glass membrane thanks to the Swiss blue gel electrolyte.
• Silver ion trap reference system

AI3155 LabSen 851-S Glass-body pH Electrode for Highly Viscous Solutions by Apera

LabSen 851-S pH electrode is designed for high-accuracy pH measurement of highly viscous samples such as coatings, syrups, resin, glue, and etc.

The pre-pressurized structure allows the electrolyte to stably flow out even in highly viscous samples so as to ensure reliable measurements.

LabSen S-type glass membrane - fast response and is 10 times stronger than traditional glass membranes, saving the electrode from accidental damage.

The electrode uses a BNC connector, compatible with any pH meters that use BNC connectors. No temperature sensor is built-in. Users need to have a separate temperature probe (ex: Apera MP500) to enable ATC or manually input temperature to realize temperature compensation.

• Proprietary sensor technology and premium materials from Switzerland
• The low-impedance S membrane ensures a fast response and is yet impact resistant.
• Pre-pressurized reference system for smooth electrolyte flow
• Silver Ion Trap Reference System ensures a stable reference potential and long service life.
• Lead-free glass body

AI3157 LabSen 751 Stainless Steel Spear pH Electrode for Solid Food Samples by Apera

Built with proprietary sensor technology and premium materials from Switzerland, Apera LabSen 751 Titanium-body pH Electrode is designed for food samples such as cheese, fruits, dough, sushi rice, and meat products.

LabSen S-type spear glass membrane - low resistance and high firmness, rendering fully stabilized readings in 15 to 30 seconds, and is yet 10 times stronger than traditional glass membranes, highly resistant to general impact, eliminating the chance of accidental breakage when inserting into food samples.

Open&Ceramic double-junction with Polymer electrolyte - ensures full contact with test samples while minimizing junction clogs. No need to refill electrolytes.

Long-Life Reference System - composed of a glass tube, AgCl, and a reference silver wire. The top end of the slim glass tube is stuffed with cotton, which prevents the reaction between AgCl and electrolyte when the temperature changes. It improves the stability of reference electrode and extends the service life of the electrode.

The electrode uses a standard BNC connector, compatible with any pH meters that use BNC connectors. No temperature sensor is built-in. Users need to have a separate temperature probe (ex: Apera MP500) to enable ATC or manually input temperature to achieve temperature compensation.

• Spear sensor designed for direct pH test of food samples such as cheese, fruits, dough, sushi rice, and meat products
• LabSen S-type glass membrane, featuring fast response and high firmness
• Open&Ceramic double-junction with Polymer electrolyte
• Long-Life Reference System - improves the stability of the reference and extends the electrode's service life

AI3161 LabSen 241-180 Glass-body pH Electrode for NMR Tubes (3mm diameter, 180mm length) by Apera

Built with proprietary sensor technology and premium materials from Switzerland, Apera LabSen 241-180 Glass Micro pH Electrode is designed for micro-volume samples in slim containers such as NMR tubes (minimum sample volume: 50 microliters).

LabSen Glass Membrane - LabSen 241-180 pH electrode adopts an ultra-long 180mm micro cylindrical glass membrane (ø3mm), making NMR tube pH measurement easier than ever. And it can be tested at high-temperature up to 212°F. The low-resistance membrane (<450MΩ) helps you quickly get a fully stabilized reading.

Long-Life Reference System - composed of a glass tube, AgCl, and a reference silver wire. The top end of the slim glass tube is stuffed with cotton, which prevents the reaction between AgCl and electrolyte when the temperature changes. It improves the stability of the reference system and extends the electrode's service life.

The electrode uses a standard BNC connector, compatible with any pH meters that use BNC connectors. No temperature sensor is built-in. Users need to have a separate temperature probe (ex: Apera Instruments MP500) to enable ATC or manually input temperature to achieve temperature compensation.

• Proprietary pH sensor technology and premium materials from Switzerland
• Low-resistance LabSen® 180mm*&oslah;3mm micro cylindrical glass membrane, ideal for NMR tubes and other slim containers (minimum sample volume: 50 microliters)
• Long-Life Reference System, improving the stability of the reference and extends the electrode's service life

AI3165 LabSen 853-S Glass-body pH/Temp. Electrode for Highly Viscous Solutions by Apera

LabSen 853-S pH/temp. electrode is designed for high-accuracy pH measurement of highly viscous samples such as coatings, syrups, resin, glue, and etc.

The pre-pressurized structure allows the electrolyte to stably flow out even in highly viscous samples so as to ensure reliable measurements.

LabSen S-type glass membrane - fast response and is 10 times stronger than traditional glass membranes, saving the electrode from accidental damage.

Compatible with all Apera Instruments meters with BNC and RCA connectors such as PH910, PH9500, PH850, PC8500, and PH820. May NOT work with other brands' meters because the thermistor might be incompatible.

• Proprietary sensor technology and premium materials from Switzerland
• The low-impedance S membrane ensures a fast response and is yet impact resistant.
• Pre-pressurized reference system for smooth electrolyte flow
• Built-in temperature sensor for ATC
• Silver Ion Trap Reference System ensures a stable reference potential and long service life.
• Lead-free glass body

AI3168 LabSen 851-H Pre-Pressurized Glass-body pH Electrode for Highly Viscous Samples with Strong Alkali or High Temperature by Apera

LabSen 851-H pH electrode is designed for high-accuracy pH measurement of highly viscous samples with strong base or high temperature.

The pre-pressurized structure allows the electrolyte to stably flow out even in highly viscous samples so as to ensure reliable measurements.

HA Glass Membrane - better accuracy and repeatability in strong alkaline solutions (10 to 14 pH), minimizing alkaline errors.

The electrode uses a BNC connector, compatible with any pH meters that use BNC connectors. No temperature sensor is built-in. Users need to have a separate temperature probe (ex: Apera MP500) to enable ATC or manually input temperature to realize temperature compensation.

• PHY glass membrane made for high-temp. and caustic solutions
• Proprietary sensor technology and premium materials from Switzerland
• LabSen HA-type glass membrane designed for strong alkalis (pH 10-14), minimizing alkaline errors
• Pre-pressurized reference system for smooth electrolyte flow
• Silver Ion Trap Reference System ensures a stable reference potential and long service life.
• Lead-free glass body

AI3201 LabSen 753 Stainless Steel Spear pH/Temp. Electrode for Solid Food Samples by Apera

Built with proprietary sensor technology and premium materials from Switzerland, Apera LabSen 753 Titanium-body pH/Temp. Electrode is designed for food samples such as cheese, fruits, dough, sushi rice, and meat products. LabSen S-type spear glass membrane - low resistance and high firmness, rendering fully stabilized readings in 15 to 30 seconds, and is yet 10 times stronger than traditional glass membranes, highly resistant to general impact, eliminating the chance of accidental breakage when inserting into food samples.

Open&Ceramic double-junction with Polymer electrolyte - ensures full contact with test samples while minimizing junction clogs. No need to refill electrolyte.

Long-Life Reference System - composed of a glass tube, AgCl, and a reference silver wire. The top end of the slim glass tube is stuffed with cotton, which prevents the reaction between AgCl and electrolyte when the temperature changes. It improves the stability of reference electrode and extends the service life of the electrode.

Compatible with all Apera Instruments meters with BNC and RCA connectors such as PH910, PH9500, PH850, PC8500, and PH820. May NOT work with other brands' meters because the thermistor might be incompatible.

• Spear sensor designed for direct pH test of food samples such as cheese, fruits, dough, sushi rice, and meat products
• LabSen S-type glass membrane, featuring fast response and high firmness
• Open&Ceramic double-junction with Polymer electrolyte
• Long-Life Reference System - improves the stability of the reference and extends the electrode's service life
• Built-in temperature sensor for ATC

LabSen 223 Glass Combination pH/Temp. Electrode for Viscous and Low Ion Concentration Samples by Apera

Backed by proprietary Swiss sensor technology and materials, LabSen® 223 Glass Combination pH/Temp. Electrode is designed for viscous and low ion concentration samples' pH testing and ideal for titration. The electrode is compatible with TRIS buffer solutions.

The electrode is backed up with a 6-month warranty by Apera Instruments.

• Moveable Sleeve Junction - easy to clean, especially suitable for low ion concentration solution and non-aqueous solution. The infiltration rate of the electrolyte is determined by the tightness of the sleeve during installation.
• Long-Life Reference System - composed of a glass tube, AgCl, and a reference silver wire. The top end of the slim glass tube is stuffed with cotton, which prevents the reaction between AgCl and electrolyte when the temperature changes. It improves the stability of reference electrode and extends the service life of the electrode.
• Special Glass Membrane - The Cylindrical glass membrane is highly resistant to general impact (the traditional glass bulb membrane is a lot more fragile), and can be tested in high-temperature samples (up to 176°F).
• Built-in temperature sensor for Automatic Temperature Compensation

LabSen 803 Glass Combination pH/Temp. Electrode for Purified Water & Low Ion-Concentration Solutions by Apera

Backed by proprietary Swiss sensor technology and materials, the LabSen® 803 3-in-1 pH/Temp. Electrode/Probe is designed for purified water such as drinking water, RO water, distilled water, deionized water, and other low ion-concentration solutions.

Moveable Sleeve Junction - The LabSen 803 pH Electrode/Probe is easy to clean, especially suitable for low ion concentration solutions. The infiltration rate of the electrolyte is determined by the tightness of the sleeve, which can be customized by users to ensure the best performance in every specific sample.

Silver Ion Trap Reference System - The LabSen 803 pH electrode adopts a Silver Ion Trap reference system. On top of the Long-Life reference system, a silver ion trap is added to prevent the junction being blocked by silver sulfide.

Unique Glass Membrane - The LabSen 803 pH Electrode/Probe adopts a Cylindrical glass membrane, which has faster response rate, better repeatability, and built tough - highly resistant to general impact (totally differentiates from the traditional fragile glass bulb membrane).

Patented pH/Temperature combination structure - The temperature element is placed in an independent cavity under the pH glass membrane. With the built-in heat-conducting medium, the temperature sensing speed can be increased by 40%, hence the response time and stability of the pH electrode are greatly improved.

Compatible Apera Instruments' meters: MP511, PH850, PH8500, SX823-B, PH700, PH910, PH950, PH820 and PC820. May NOT work with other brands' meters because the temperature unit might be incompatible.

The electrode is backed up with a 6-month warranty by Apera Instruments.

• Proprietary pH sensor technology and materials from Switzerland
• Unique LabSen cylindrical glass membrane, faster response rate, better repeatability in purified water
• Get stable pH measurements in purified water or low ion-concentration solutions in 30 seconds on average. Say goodbye to annoying fluctuations
• Patented pH/Temperature combination structure, increasing the temperature response time by 40% compared to a conventional isolated built-in thermistor
• Silver Ion Trap Reference System - on top of the Long-Life reference system, a silver ion trap is added to prevent the junction being blocked by silver sulfide

LabSen 851-3 Glass-body pH Electrode for Highly Viscous Solutions by Apera

Backed by proprietary Swiss sensor technology and materials, the LabSen 851-3 Glass Pre-Pressurized Combination pH Electrode is designed for pH measurement for highly viscous solutions such as cosmetics, paint, resin, glue, and etc.

Pre-pressurized reference system - a pressure is pre-filled inside the LabSen 851-3 electrode so that the electrolyte can continue to flow through the junction. Even if a high viscous solution is tested, the blockage of the junction can also be avoided

The electrode uses a BNC connector, compatible with any pH meters that use BNC connectors, such as Apera Instruments MP511, SX811, PH700, PH800, PC800, PH820 and PC820. The temperature sensor is not built-in. Users need to have a separate temperature probe (ex: Apera Instruments MP500) to enable ATC or manually input temperature to realize temperature compensation.

The electrode is backed up with a 6-month warranty by Apera Instruments

• Proprietary pH sensor technology and materials from Switzerland
• Pre-pressurized reference system: pressure is pre-filled inside the electrode so that the electrolyte can continue to flow through the junction. Even if a high viscous solution is tested, the blockage of the junction can also be avoided
• Standard BNC Connector
• 6-Month Warranty fulfilled by Apera Instruments