
Hanna Instruments HI-1006-4005 pH Electrode with PTFE Junction
pH Electrode with PTFE Junction, high temperature sensor, BNC, 5m/10m cable.
Hanna presents a series of combination pH electrodes incorporating over 20 years of electrode manufacturing experience.
The most advanced feature of this series is the electrode shape with a flat tip, virtually eliminating deposits that can foul the electrode, significantly reducing necessary maintenance. This characteristic makes flat tip electrodes ideal for continuous in-line monitoring and for solutions containing aggressive chemicals.
- Self-cleaning flat tip sensor for significantly reduced maintenance
- Provided with an internal matching pin that can avoid typical problems caused by grounding loop current
- 3/4” NPT external thread on both ends for easy installation
Industrial Flat Tip pH Electrode
The HI-1006-4005 is an industrial flat tip pH electrode with PTFE junction, HF glass bulb, BNC connector and 5 m cable.
Key features
- Self-cleaning flat tip sensor
- Significantly reduced maintenance requirement
- PVDF body
- Built-in potential matching pin
Junction
Three junction types are available:
- Annular non-clogging PTFE junction, for testing solutions with high content of suspended solids or for high pressure installation
- Open junction, ideal for wastewater analysis
- Ceramic junction
Connection Type
- Electrodes are wired for direct connection to a transmitter or process controller, or with the standard BNC connector.
Glass Sensor
- Hanna has developed four types of specialised glass. First is a durable sensor glass for general purpose, industrial use. This glass can withstand the stress of daily use. The remaining types of electrode glass allow continuous monitoring in highly acidic solutions containing fluoride ions, as well as high or low temperature process and streams significantly increase the electrode life.
Built-in Amplifier
- Models with a built-in amplifier are necessary for long distance measurements, where it is not possible to install a transmitter. The internal amplifier can be powered directly from select Hanna process controllers or a power source that supplies the appropriate voltage.
Temperature Sensor
- The pH electrodes with built-in 3-wire Pt100 or Pt1000 temperature sensor allow for the temperature compensation of pH readings as well as temperature measurements.
Cable Length
- Non-amplified electrodes are provided with a 5, 10 or 15m cable, while the amplified models are provided with a 15, 25, 50 or 75m cable.
Select the flat tipped electrode that best fits your process requirements by choosing from the following technical characteristics listed in the specifications table.
Specifications
| HI-1006-4005 | |
|---|---|
| Cable Length | 5m |
| Connection | BNC |
| Internal Temperature Sensor | No |
| Glass Type | Fluoride Resistant (HF) |
| Junction | PTFE |
| HI-1006-2405 | |
| Cable | 5m |
| Connection | BNC |
| Internal Temperature Sensor | Pt1000 |
| Glass type | General Purpose (GP) |
| Junction | PTFE |
| HI-1006-3005 | |
| Cable | 5m |
| Connection | BNC |
| Internal Temperature Sensor | No |
| Glass Type | High Temperature (HT) |
| Junction | PTFE |
| HI-1006-3007 | |
| Cable | 7m |
| Connection | BNC |
| Internal Temperature Sensor | No |
| Glass Type | High Temperature (HT) |
| Junction | PTFE |
| HI-1006-3205 | |
| Cable | 5m |
| Connection | BNC |
| Internal Temperature Sensor | Pt100 |
| Glass Type | High Temperature (HT) |
| Junction | PTFE |
| HI-1006-2005 | |
| Cable | 5m |
| Connection | BNC |
| Internal Temperature Sensor | No |
| Glass Type | General purpose (GP) |
| Junction | PTFE |
| HI-1006-1005 | |
| Cable | 5m |
| Connection | BNC |
| Internal Temperature Sensor | No |
| Glass Type | Low Temperature (LT) |
| Junction | PTFE |
| HI-1006-3005 | |
| Cable | 5m |
| Connection | BNC |
| Internal Temperature Sensor | No |
| Glass Type | High Temperature (HT) |
| Junction | Ceramic |
| HI-1006-1007 | |
| Cable | 7m |
| Connection | BNC |
| Internal Temperature Sensor | No |
| Glass Type | Low Temperature (LT) |
| Junction | PTFE |
| HI-1006-2010 | |
| Cable | 10m |
| Connection | BNC |
| Internal Temperature Sensor | No |
| Glass Type | General Purpose (GP) |
| Junction | PTFE |
| HI-1006-2015 | |
| Cable | 15m |
| Connection | BNC |
| Internal Temperature Sensor | No |
| Glass Type | General Purpose (GP) |
| Junction | PTFE |
| HI-1006-3010 | |
| Cable | 10m |
| Connection | BNC |
| Internal Temperature Sensor | No |
| Glass Type | High Temperature (HT) |
| Junction | PTFE |
| HI-1006-2210 | |
| Cable | 10m |
| Connection | BNC |
| Internal Temperature Sensor | Pt100 |
| Glass Type | General purpose (GP) |
| Junction | PTFE |
| HI-1006-1205 | |
| Cable | 5m |
| Connection | BNC |
| Internal Temperature Sensor | Pt100 |
| Glass Type | Low Temperature (LT) |
| Junction | PTFE |
| HI-1006-2205 | |
| Cable | 5m |
| Connection | BNC |
| Internal Temperature Sensor | Pt100 |
| Glass Type | General Purpose (GP) |
| Junction | PTFE |
| HI-1006-2305 | |
| Cable | 5m |
| Connection | Direct/colour-coded wires |
| Internal Temperature Sensor | Pt100 |
| Glass Type | General Purpose (GP) |
| Junction | PTFE |
| HI-1006-2505 | |
| Cable | 5m |
| Connection | Direct/colour-coded wires |
| Internal Temperature Sensor | Pt1000 |
| Glass Type | General Purpose (GP) |
| Junction | PTFE |
| HI-1006-4205 | |
| Cable | 5m |
| Connection | BNC |
| Internal Temperature Sensor | Pt100 |
| Glass Type | Fluoride Resistant (HF) |
| Junction | PTFE |
| HI-1006-2215 | |
| Cable | 15m |
| Connection | BNC |
| Internal Temperature Sensor | Pt100 |
| Glass Type | General Purpose (GP) |
| Junction | PTFE |
| HI-1006-3715 | |
| Cable | 15m |
| Connection | Direct/colour-coded wires |
| Internal Temperature Sensor | Pt100 |
| Glass Type | High Temperature (HT) |
| Junction | PTFE |

Frequently Asked Questions
Clear answers to help you choose the right water testing solution with confidence
Which brands of water testing kits do you supply?
Do you provide kits for both home and professional use?
Yes — whether you’re a pool or spa owner, aquarium keeper, utility company, or a university laboratory, we have the right solution for your needs.
Can I arrange servicing or calibration for my photometer?
Absolutely. We also provide servicing and calibration to keep your photometers accurate and reliable.
How quickly do you dispatch orders?
Orders placed before 2:30 pm (Monday–Friday) are dispatched the same day. We also ship on Saturdays for your convenience.
Which couriers do you use for delivery?
We deliver through UPS, DPD, and Royal Mail. You can also choose to upgrade to next-day delivery at checkout.
What is your return policy?
We accept returns within 14 days of delivery provided the items are unused, in their original packaging, and in resalable condition. Please contact our team before returning any items.
Can I place bulk or business orders?
Yes, we welcome bulk, trade, and institutional orders. For tailored pricing or large quantities, please get in touch with us directly.
How can I get help if I’m unsure which kit to buy?
You can call us at 📞 +44 (0)115888 2726 and our team will guide you in choosing the most suitable kit for your needs.