Wireless Thermometer Sensor Redy

Quick Answer: The Redy wireless thermometer sensor is a temperature probe with its own wireless transmitter, recording temperature continuously and sending it to a connected device for graphing. A wireless thermometer sensor replaces repeated readings from a glass thermometer with a smooth temperature curve over time.

Temperature Against Time, Without a Stopwatch

Many school practicals depend on how temperature changes rather than on one value: a cooling curve that levels off while a substance freezes, a neutralisation that warms and then cools, or water heated at a steady rate by an electric heater. With a liquid-in-glass thermometer, students read a scale every thirty seconds and plot by hand. A logging probe samples as often as the software allows, so brief events such as the peak of an exothermic reaction are not missed.

The title says thermometer rather than thermocouple, which in data-logging ranges often signals a general-purpose probe for everyday lab temperatures rather than flames or furnaces. The sensing element, range and probe material are not given, so check them before immersing the probe in corrosive or very hot liquids. For flames and hot surfaces, the wireless thermocouple sensor is the matching choice.

Because there is no cable, the probe can sit inside an insulated calorimeter, a water bath or an incubator without a lead trailing across the bench.

Applications

• Cooling curves of stearic or lauric acid to find a melting point
• Temperature change in neutralisation, dissolving and displacement reactions
• Specific heat capacity experiments with a heater in water or a metal block
• Comparing insulating materials by logging how quickly wrapped beakers of hot water cool
• Recording temperature inside a compost bin or germination chamber over several days

Specifications

Care & Handling

• Check the rated temperature of the probe and its sheath before placing it in hot liquids.
• Rinse the probe after acids, alkalis or salt solutions and dry it before storage.
• Do not use the probe as a stirring rod; bending the stem can damage the sensor inside.
• Keep the transmitter away from splashes and hot plates, even while the tip is immersed.

Why Choose LabEquip

Science departments moving practicals such as specific heat capacity and cooling curves onto data-loggers buy several temperature probes, one per group. LabEquip includes this sensor in its chemistry lab equipment range; confirm range and quantities via the contact page.

Frequently Asked Questions

How is a thermometer sensor different from a thermocouple sensor?

General temperature probes are designed for the usual range of laboratory liquids and air, with fine resolution. Thermocouples cover much higher temperatures, such as flames and furnaces, usually with coarser resolution. Choose by the temperatures your practicals reach.

Can the probe be left in a reaction mixture?

In most aqueous mixtures, yes, for the length of a practical. Strong acids, alkalis or solvents can attack some probe materials, so find out the sheath material and rinse the probe as soon as the run ends.

Why does the logged temperature lag behind the real change?

Every probe needs time for heat to pass through its sheath to the sensing element, and thicker sheaths respond more slowly. Stirring the liquid and keeping the tip fully immersed reduce the lag.

Is it accurate enough for specific heat capacity experiments?

For school and college work it is usually more consistent than reading a glass thermometer by eye, because readings are frequent and free of parallax. Heat lost from the apparatus remains the larger error.

Can it measure air temperature?

Yes. Hold the probe in free air away from direct sunlight and warm hands, and give it longer to settle, since air transfers heat to the probe more slowly than water does.

How should the sensor be cleaned?

Rinse or wipe the probe with water, using a mild detergent for greasy residues, then dry it. Do not immerse the transmitter unit unless it is stated to be waterproof.

Last Updated: September 2026