Extech Instruments Corporation released the pH/ORP electrodes specification sheet in 2007. The product includes 60120B and 601500 two types of pH/Ref electrodes and 601100 one type of Flat surface electrode, as well as 67500B one type of Redox ORP/Ref electrode. All electrodes use Ag/AgCl electrode filling method, fast response time, response rate is 95%/5s. The 60120B and 601500 two types of electrodes use a rugged polycarbonate structure and are equipped with a glass pH sensor. The pH range is 0 to 14 pH, and the operating temperature is 0 to 80 °C. The 601100 electrode uses a PVC structure and is suitable for pH values of solid products with minimal moisture, such as cheese, soil or electrophoretic/agar gels. The 67500B electrode uses a platinum sensing surface, a polycarbonate body and a sealed reference, which can be used for Redox ORP measurements.
This document provides technical specifications for three Extech pH electrode models: 601100 (flat surface), 601500 (general-purpose), and 60120B (mini combination). All models feature an Ag/AgCl reference type and a measuring range of 0 to 14.0 pH units.
| Measuring range | 0 to 14.0 pH units |
|---|---|
| Temp. range | 0-80°C |
| Reference type | Ag/AgCl (silver silver chloride) |
| Precision | 0.02 pH units |
| Connector | BNC |
| Cable length | 1 meter (39") |
The electrodes measure from 0 to 14.0 pH units.
These electrodes operate within a temperature range of 0-80°C.
The electrode must soak in pH 4 buffer for at least 20 minutes.