LabSen®221 Combination pH Electrode for Viscous and Low Ion Concentration Samples pH testing

หัววัด pH ข้อต่อ BNC ประเภทแก้ว (สำหรับงานที่มีความเหนียว,

Product Details



Backed by proprietary Swiss sensor technology and materials, LabSen 221 Routine Combination pH Electrode is designed for viscous and low ion concentration samples' pH testing and ideal for titration. The electrode is compatible with TRIS buffer solutions.

  • 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 the 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).

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



1. LabSen 221 Instruction Manual



Material: Lead-free glass

Temp. Sensor: No

Junction: Moveable Sleeve

Reference: Long-Life

Electrolyte: 3M KCL

Length: 130mm

Diameter: 12mm

Membrane Shape: Cylindrical

Range: 0-14 pH

Temp. Range: -5 to 80°C (23 to 176°F)

Connector: BNC

Cable: 3 Ft

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