Electrodes & Sensors
See our selection of electrochemical electrodes and sensors.
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LabSen 551 Plastic Spear pH Electrode for soil
Apera Instruments
AI3106-EA
$170.00
Special Price $130.00
LabSen® 251 Glass Spear pH Electrode for Semi-Solid Samples Backed by proprietary Swiss sensor technology and materials, the LabSen 251 Combination Spear pH Electrode is designed for testing soft solid and semi-solid samples such as cheese, butter, dough, fruit, etc. Long-Life Reference System – The LabSen 251 pH electrode adopts a long-life reference system, which is 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 temperature changes. It improves the stability of reference electrode and prolong the service life of the electrode. Polymer Electrolyte – The solid polymer electrolyte makes the electrode hard to be contaminated and maintenance-free. Special Glass Membrane – The LabSen 251 pH electrode adopts a spear glass membrane, which is ideal for testing semi-solid samples, and can be tested in high temperature samples (up to 176°F). The electrode is backed up with a 6-month warranty by Apera Instruments. Learn More
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DO8032 Luminescent Cap
Apera Instruments
AI4103-EA
$110.00
Special Price $90.59
DO8032 Luminescent Cap Learn More
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pH Replacement Flat Probe (PH60F-E)
Apera Instruments
AI1203-EA
$63.00
Special Price $48.18
PH60F-E Replacement Probe for PH60F Surface pH Tester Measuring Range: -2.00 - 16.00 pH, 0 - 50°C Flat surface glass membrane with built in tempurature sensor, made for surface pH testing such as: skin, paper, fabrics and micro samples Gel KCL electrolyte, maintenance-free Works well for 12-24 months under proper use and care The Apera Instruments PH60F-E Replacement Probe is the replacement probe for PH60 Series Premium Pocket pH testers, including PH60F, PH60S, PH60, and PC60. This probe features a flat glass membrane sensor with a built-in temperature sensor and maintenance-free gel KCl electrolyte, made for surface pH testing such as: skin, fabrics, paper, Leather and micro-volume solution samples. This probe also works well for common aqueous solution testing. CE-Certified and comes with a 6-Month Warranty. Learn More
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Conductivity Replacement Probe(EC60-E)
Apera Instruments
AI1209-EA
$46.00
Special Price $35.18
EC60-E Replacement Probe for EC60 Pocket Conductivity/TDS/Salinity Tester EC Measuring Range: 0.1 µs to 20.00 MS; TDS Range: 0.1 ppm - 10.00 ppt; Salinity Range: 0 - 10.00 ppt Apera's unique Brush-Resistant Platinum Black Sensor ensures accurate Conductivity measurement in a wide range Built-in temperature sensor Suitable for common aqueous solution, pure water and waste water's Conductivity/TDS/Salinity testing The Apera Instruments EC60-E Probe is the replacement probe for EC60 Portable Pocket Meter/Tester as well as the PC60 pH/Conductivity Portable Pocket Meter/Tester. This probe features Apera's unique Brush-Resistant Platinum Black (BPB) sensor, ensuring accurate conductivity measurement in a wide range (0.1 µs to 20.00 MS). It enables you to Test conductivity (EC), TDS and salinity at the same time. Its TDS range is 0.1 ppm to 10.00 PPT; salinity range is 0 to 10.00 PPT. Works great for common aqueous solution and waste water's Conductivity test. CE Certified with a 6 moth warranty. Learn More
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DJS-0.1-C Pure Water Conductivity Electrode (K=0.1, BNC connector)
Apera Instruments
AI1310-EA
$180.00
Special Price $137.65
DJS-0.1-C Pure Water Conductivity Electrode (K=0.1, BNC connector) Learn More
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2301T-F Conductivity Electrode (for 700, SX823-B)
Apera Instruments
AI1305-EA
$70.00
Special Price $53.53
2301T-F Conductivity/Temp. Electrode (K=1), Range: 0.5 µS/cm to 200 mS/cm, BNC/RCA Connector Built-in temperature sensor, testing conductivity and temperature simultaneously (supports Auto.Temp. Compensation) Apera's unique BPB conductivity electrode/tester/sensor, ensuring high accuracy in a wide range Equipped with a detachable probe storage cap, keeping the sensor hydrated when not in use 6-Month Warranty fulfilled by Apera Instruments The Apera 2301T-F Conductivity/Temp. Electrode/Tester/Sensor adopts Apera's unique BPB (Brush-resistant Platinum Black) conductivity sensor technology, which ensures high accuracy in a wide range of conductivity measurement. The built-in thermistor tests temperature simultaneously and allows for auto temperature compensation. It is ideal for both regular laboratory and in-field use. Compatible Apera Models: EC700, EC800, PC800, EC820, PC820; May NOT be compatible with other brands' meters because the temperature unit might be incompatible. Technical Specifications Measuring Range: 0.5 µS/cm to 200 mS/cm Electrode Constant: K=1.0 ±0.2cm^-1 Dimension: ø12*155mm Connector: BNC/RCA Learn More
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LabSen 241-3 Micro pH Electrode
Apera Instruments
AI3104-EA
$322.00
Special Price $246.24
LabSen® 241-6 Professional Combination pH Electrode for Small Samples (>0.2mL), BNC Connector Proprietary pH sensor technology and materials from Switzerland Special LabSen semi-micro cylindrical sensor tip, suitable for small-volume pH measurement (>0.2mL) BNC-Connector 6-Month Warranty fulfilled by Apera Instruments Backed by proprietary Swiss pH sensor technology and materials, the LabSen 241-6 Micro Combination pH Electrode is designed for small-volume samples (=0.2ml). Unique Glass Membrane – The LabSen 241-6 pH electrode adopts a semi-micro cylindrical glass membrane (6mm in diameter), making small-sample pH testing easier than ever, and can be tested in high temperature samples (up to 212°F). 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 temperature changes. It improves the stability of reference electrode and prolong the service life of the electrode. 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. 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. Learn More
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ORP Replacement Platinum Probe (ORP60-E)
Apera Instruments
AI1207-EA
$60.00
Special Price $45.88
ORP60-E Replacement Probe for ORP60 Pocket ORP Tester ORP (mv) ORP Range: ±1000 mV, Temperature Range: 0 - 50°C Platinum sensor with maintenance-free gel KCL electrolyte Works well for 12-24 months under proper use and care Made for common Water solution testing analysis and wastewater's ORP testing The Apera Instruments ORP60-E Replacement Probe is the replacement probe for ORP60 Pocket ORP Tester and PH60 series pocket pH testers/meters, including PH60, PH60S, PH60F. This probe features a Platinum ORP sensor with a built-in temperature sensor and maintenance-free gel KCl electrolyte. Works great for common water solution testing analysis and wastewater’s ORP measurement. CE-Certified and comes with a 6-Month Warranty Learn More
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DO803 Luminescent Optical DO Probe（3M）
Apera Instruments
AI4101-EA
$615.00
Special Price $506.47
DO803 Luminescent Optical DO Probe（3M） Learn More
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LabSen821 pH Electrode for dairy products
Apera Instruments
AI3141-EA
$128.00
Special Price $97.88
LabSen® 821 Professional Combination pH Electrode for Dairy Products such as Milk, Cream, Yogurt, and other Liquid Food, BNC Connector Proprietary pH sensor technology and materials from Switzerland Designed for milk and other liquid food that contain proteins Unique LabSen hemispherical glass membrane, which has a faster response rate, better repeatability, and built tough Silver Ion Trap Reference System + Protelyte reference solution, preventing the electrode being contaminated by proteins Standard BNC Connector Backed by proprietary Swiss sensor technologies and materials, the LabSen 821 Combination pH Electrode/Probe is designed for testing the pH for dairy products such as milk, cream, yogurt, and other liquid food such as mayonnaise, jam, BBQ sauce, syrup, etc. Silver Ion Trap Reference System+Protelyte Electrolyte – The LabSen 821 pH Electrode/Probe adopts a Silver Ion Trap reference system and Protelyte reference solution. On top of the Long-Life reference system, a silver ion trap is added to prevent the junction from being blocked or contaminated by proteins. LabSen unique blue hemispherical glass membrane – faster response time, better repeatability, and built tough, highly resistant to general impact (totally differentiates from the traditional fragile glass bulb membrane); and can be tested in high temperature samples (up to 225°F). 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. 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. Learn More