Hach Intellical PHC705 Laboratory High Alkalinity Range pH Electrode
Features
- RedRod technology
- Free ground shipping
- Expedited repair and warranty service
- Lifetime technical support
- More
Overview
The Hach Intellical PHC705A is a digital combination pH electrode with a built-in temperature sensor. The PHC705A is a pH refillable electrode with a ceramic porous pin reference junction embedding the RedRod technology to deliver exceptionally fast, stable, and accurate response times for accurate measurements within a wide temperature range. A 59-mL bottle of saturated KCl Electrode Filling Solution is included with the probe.
Applications
Thanks to its special pH glass bulb composition, this high-performance laboratory glass pH electrode is particularly suited for measuring pH in alkaline aqueous samples for pH above 12. The PHC705 is not suitable for use with organic solvents, emulsions or sample types with high solids content.
Accuracy: ±0.01 pH
Application: High Performance/High Alkalinity
Cable Length: 1 m (3.28 ft)
Electrode Type: RedRod / Refillable Reference Element
Filling Solution: Saturated KCl (#25118026)
Junction: Porous Pin Junction
Kit?: No
Length: 200 mm (7.87 in.)
Method Type: Laboratory: RedRod / Refillable Reference Element
Parameter: pH
Probe Type: Standard
Product Kit: Model: PHC705A
Accessories Included: None
Range: 0 - 14 pH
Reference Type: Red Rod
Resolution: 0.001/0.01/0.1
Sample depth: 18 mm (0.71 in.)
Sensor material: Glass
Sensor Type: pH Glass
Sodium (Alkalinity) error: <0.3 pH at pH 14 in 1 M NaOH
Special Features: High-alkalinity samples
Temperature Accuracy: ±0.3 °C (±0.54 °F)
Temperature Range: 0 - 100 °C (32 - 212 °F)
Temperature Resolution: 0.1 °C (0.18 °F)
Test requirements Parameter Needed: pH
Minimum Sample Depth (mm): 18
Thermistor: ATC
Warranty: 12 months
Weight: 0.1 kg
What's included?: IntelliCAL PHC705A Laboratory pH electrode with storage soaker bottle, 1 m cable, 59-mL bottle reference electrolyte filling solution (Saturated KCl solution), Test certificate, and Basic User Manual.
Select Options
In The News
Three Decades of Research at Acton Lake
A multi-disciplinary team at Miami University, Ohio, has been studying the environmental change at Acton Lake for over three decades. Using three different NexSens buoys over this time, the team has an incredible archive of data that is helping build a picture of Acton’s past, present, and future. Until recently, a NexSens CB-50 buoy was used alongside other environmental monitoring at Acton Lake. In May 2025, the Miami team deployed a new XB-200 buoy , future-proofing their ongoing monitoring using real-time buoy systems. Acton Lake, a small hypereutrophic reservoir in southwest Ohio, covers 2.4km² and has a maximum depth of about 8m. The dam was built in 1956, and the lake has a large agricultural watershed.
Read More
Source Water Monitoring in Albany, New York: Tracing Water Quality throughout Tributaries
Thousands of US cities pull their drinking water from natural source waters like reservoirs, rivers, and streams, making overall watershed health a key consideration for water providers. In Albany, New York, the Albany Department of Water and Water Supply delivers drinking water to over 100,000 residents as well as monitors and manages the larger drinking water supply watershed. Hannah Doherty, Environmental Specialist at the Albany Department of Water and Water Supply , spends her days working with a small team to monitor the drinking supply and the connected water bodies. Doherty explains, “We’re the first to encounter the water that ends up being the drinking water.
Read More
Wildfire Prevention in the Sierra Nevada Region with the Yuba Watershed Institute
Though recent wildfires have sparked new conversations about wildfire management and response, groups like the Yuba Watershed Institute have been monitoring the forests and water resources of the Sierra Nevada region for decades, managing approximately 5,000 acres of land with the Bureau of Land Management (BLM) and about 7,000 acres in private land partnerships. The goal of the Institute is to work with local communities and land agencies to improve watershed and forestry management through informed practices and public outreach. The goals of the Yuba Watershed Institute are three-fold: Improve the ability of fire suppression agencies like the California Department of Forestry and Fire Protection ( CAL FIRE ) and the US Forest Service.
Read More
