The Apera Instruments 201-C Combination pH Electrode is an economical, reliable sensor designed for general water solution pH measurement in scientific research, environmental monitoring, hydroponics, and quality control applications.

Featuring Apera's proprietary low-impedance lithium glass membrane and a single ceramic junction with gel KCl electrolyte, the 201-C requires no electrolyte refilling. A detachable probe storage cap keeps the sensor hydrated between uses.

Specifications

• pH Range: 0 to 13 pH
• Temperature Range: 0–60°C (32–140°F)
• Housing: Polycarbonate
• Junction: Single Ceramic
• Reference Electrode: Ag/AgCl
• Electrolyte: Gel KCl (no refilling required)
• Connector: BNC
• Cable Length: 3 ft
• Dimensions: ø12 × 160 mm
• Temperature Sensor: Not built-in (manual input or separate probe required for ATC)

Compatibility

Compatible with any pH meter using a BNC connector. Not suitable for deionized or distilled water, strong acids or bases, highly corrosive liquids, or continuous high-temperature testing.

What's Included

• Apera 201-C Combination pH Electrode
• Detachable probe storage cap

Warranty: 6-month warranty fulfilled by Apera Instruments.