Wireless pH Meter Sensor Redy

Quick Answer: The Redy wireless pH meter sensor is a pH electrode joined to a small wireless data-logging unit, which sends readings to a connected device running data-collection software instead of showing them on a fixed display. A wireless pH sensor lets students record pH continuously and watch a titration curve build in real time.

From Single Readings to a Live pH Curve

A pH electrode develops a small voltage that depends on the hydrogen-ion activity of the solution around its glass bulb. A benchtop laboratory pH meter converts that voltage into a number on its own screen; this sensor converts it and transmits it, so each reading is stored against time or against volume added. That turns a titration from a single colour change into a full curve showing the buffer region, the steep jump and the equivalence point.

Going wireless removes the cable between electrode and computer, which helps when a flask is turning on a magnetic stirrer or when several groups share one projected screen. The title does not state the electrode type, measuring range, resolution or temperature compensation, and these are worth checking before any work at extreme pH or temperature.

Pairing it with the wireless droplet sensor logs titrant volume automatically, drop by drop, while the wireless conductivity sensor follows the same reactions through changing ion concentration.

Specifications

Applications

• Plotting strong acid with strong base and weak acid with strong base titration curves
• Investigating how buffer solutions resist pH change when acid or alkali is added
• Testing antacid tablets by following the pH of dilute hydrochloric acid as they dissolve
• Measuring the pH of soil extracts, rainwater or pond samples in environmental projects

Care & Handling

• Keep the glass bulb wet: store the electrode in its storage solution, not in distilled water, which slowly depletes it.
• Rinse the electrode with distilled water between samples and blot, never rub, the bulb.
• Calibrate with fresh buffers at the start of each session, since the electrode’s response drifts with age.
• Avoid knocking the bulb against the flask wall or a stirrer bar; a cracked bulb cannot be repaired.

Why Choose LabEquip

Schools and colleges moving their titrations onto data-logging are the usual buyers, often equipping several groups at once. The sensor is part of LabEquip’s chemistry lab equipment listing; questions about electrodes, buffers and the data app can go through the contact page.

Frequently Asked Questions

How often should the wireless pH sensor be calibrated?

At the start of each practical session, and again if readings drift or the electrode has been stored dry. Use at least two fresh buffers that bracket the pH you expect, such as pH 4 and 7 for acidic samples.

What should the pH electrode be stored in?

In the storage solution intended for it, which is usually based on potassium chloride. Distilled water draws ions out of the glass and the reference junction and shortens the electrode’s life.

Why is the reading slow to settle?

A sluggish response often means the electrode is dirty, ageing or has dried out. Clean it as the maker recommends, soak it in storage solution and recalibrate. Cold or very dilute solutions also respond more slowly.

Can it replace a benchtop laboratory pH meter?

For teaching titrations and live graphs it is often more useful, because every reading is logged. A benchtop meter may still suit routine sample testing, where one quick displayed value is all that is needed.

Is it safe to measure pH in hot solutions?

pH electrodes have a temperature limit, and readings shift with temperature. Check the rated limit before measuring hot liquids, and let samples cool towards room temperature where the method allows.

Can the sensor measure soil pH directly?

Not by pushing the glass bulb into dry soil, which would damage it. Shake the soil with distilled water, let it settle and measure the pH of the liquid above it.

Last Updated: September 2026