pH Sensor Spots: Non-invasive Optical pH Sensor - pH 5.5 to 8.5 - 0.01 pH Resolution

Introduction

Taking samples from shake flasks or culture vessels to check pH interrupts the culture and risks contamination. The pre-calibrated contactless PreSens SP-HP5 pH Sensor Spots are mounted inside a transparent vessel and read from the outside, so pH can be followed online.

Technical Specifications

The figures below come from the manufacturer's data. The core specifications for the PreSens SP-HP5 pH Sensor Spots are:

• Model: SP-HP5
• Measurement range: pH 5.5 to 8.5
• Resolution: ±0.01 pH at pH 7
• Accuracy at pH 7: ±0.05 (sensor spot calibration), ±0.10 (sensor batch calibration)
• Drift at pH 7: less than 0.005 pH per day (1 min sampling interval)
• Measurement temperature: +5 to +50 °C
• Response time (t90): less than 120 s
• Compatibility: aqueous solutions, pH 2 to 10
• Cross-sensitivity: ionic strength (salinity); high concentrations of small fluorescent molecules can interfere
• Delivery: beta-irradiated or untreated
• Sterilization: irradiation, ethylene oxide (EtO), autoclaving (one time)
• Calibration: pre-calibrated, re-calibration possible

Standard Accessories Included

• pH sensor spots SP-HP5. Pack size is confirmed at quotation.

Items Excluded

• Reader meter (PreSens lists pH-1 SMA HP5 and pH-1 mini as related meters)
• Polymer optical fiber (POF)
• Adapters such as ARC or SOA

Pre-installation Requirement

• Transparent glass or plastic vessels for mounting the spots.
• A compatible PreSens reader meter, confirmed at quotation.

Key Benefits

Several daily bottlenecks ease when you work with the ready-to-use PreSens SP-HP5 pH Sensor Spots.

Efficiency

Pre-calibrated spots are ready to use, which saves calibration time before each run.

Accuracy

Drift below 0.005 pH per day at pH 7 supports long-term monitoring.

Safety and comfort

Contactless reading keeps the vessel closed during the whole culture.

Read more on the PreSens SP-HP5 product page. You can also compare it with our benchtop pH meter kit.

Key Features

• Online monitoring without sampling
• Contactless measurement through the vessel wall
• Pre-calibrated and ready to use
• Applicable from microliter to production scale

Solving Common Lab Problems

Still sampling shake flasks by hand to check pH? The PreSens SP-HP5 pH Sensor Spots for daily lab work let you follow pH online through the flask wall.

Working with culture media? The spots are optimized for physiological solutions and culture media.

Warranty & Support

We provide a 1-year manufacturer's warranty covering parts and labor. Technical support, installation assistance, and operational training are also available. Replacement parts and consumables are available throughout the product's service life.

Request a Quotation or Technical Datasheet

Contact us about the reliable PreSens SP-HP5 pH Sensor Spots for your lab for more information, customized configurations, and solutions tailored to your specific requirements.