Wireless temperature sensor

The Wireless Temperature sensor W56 measures temperature in the range between -40 °C to 125 °C. It is a general-purpose temperature sensor that can be used to measure temperature in liquids (water, mild acidic solutions) and air. The stainless-steel tube has a length of 195 mm.


The sensor is equipped with an OLED color display which shows some sensor information and the measured by the sensor values. This makes the sensor suitable to use as an independent measuring instrument. The temperature sensor can be used wirelessly via Bluetooth with the Coach 7 or Coach 7 Lite programs/apps on computers (Windows and Mac), Chromebooks, and mobile devices (Android and iOS).

Technical specifications:

• Measurement range: - 40°C .. 125°C
• Resolution: 0.06°C
• Accuracy: Typical: ± 0.25°C
• Warranty: 36 months
• Response time: 90 % of full reading after 9s in liquid / 90 % of full reading after 295s in air
• Maximum sampling rate: 8 Hz
• Battery life: 14 hours when fully charged (rechargeable)
• Connectivity: Bluetooth 5, Low Energy (Mac, Android, iOS) Bluetooth 2.1, Classic (Windows)

Technical specifications of the sensor are descibed it its User's guide.

Suggested chemistry, physics and biology experiments:

• Monitoring indoor and outdoor temperatures
• Monitoring freezing and boiling water
• Measuring temperature during endothermic and exothermic reactions
• Specific heat experiments
• Conduction, convection, radiation and evaporation experiments
• Renewable energy studies, like solar energy and heat pump experiments
• Measurement of (outer) body temperature of different organisms