Backed by proprietary Swiss sensor technology and materials, the Apera Instruments LabSen 211 Combination pH Electrode Sensor is ideal for precise regular water solutions and water pH testing in scientific research and quality control. This electrode is compatible with TRIS buffer solutions.

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 LabSen 211 Combination pH Electrode Sensor 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 the temperature changes. It improves the stability of reference electrode and extends the service life of the electrode.

The electrode uses a BNC connector, compatible with any pH metersthat use BNC connectors, such as Apera's 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 MP500) to enable ATC or manually input temperature to realize temperature compensation. The electrode is backed up with a 6-month warranty fulfilled byApera Instruments.

Features:

• Proprietary pH sensor technology and materials from Switzerland
  
• Unique LabSen blue hemispherical glass membrane, faster response rate and impact-resistant
• Say goodbye to air bubbles inside the bulb thanks to the Swiss blue inner gel solution.
• Long-Life Reference System, improving the stability of reference electrode and prolong the service life of the electrode
• Compatible with TRIS buffer
  
  

Technical Specifications:

Warranty:

We warrant this electrode to be free from defects in material and workmanship and agree to repair or replace free of charge, at the option of APERA INSTRUMENTS, LLC, any malfunctioned or damaged product attributable to the responsibility of APERA INSTRUMENTS, LLC for a period of SIX MONTHS from the delivery.

This limited warranty does NOT cover any issues due to:

Accidental damage

Improper use

Normal wear and tear

Transportation

Storage

Failure to follow the product instructions

Unauthorized maintenance, modifications, combination or use with any products, materials, processes, systems or other matter

Unauthorized repair

External causes such as accidents, abuse, or other actions or events beyond our reasonable control.