Pocket Glass Thermometer, 155 mm, Red Spirit, -30°C to +50°C, Blue Case

Description

The Pocket Glass Thermometer, 155 mm, Red Spirit, -30°C to +50°C, Blue Case, also known as a pocket laboratory thermometer, red spirit thermometer or portable glass thermometer, is designed for measuring temperatures during routine scientific experiments, laboratory testing and educational activities. This liquid-in-glass thermometer uses red spirit filling and a graduated Celsius scale to provide temperature readings without batteries, digital displays or electronic measuring equipment. The thermometer measures temperatures from -30°C to +50°C, making it suitable for low-temperature investigations, cooling experiments, environmental temperature observations and general laboratory measurements within its specified range.

Its 1.0°C scale divisions allow users to observe and record temperatures directly. These graduation intervals indicate the spacing between scale markings and should not be confused with the thermometer’s measurement accuracy. The red spirit filling expands and contracts in response to temperature changes. As the liquid moves through the narrow glass capillary, its position against the graduated scale indicates the temperature being measured. Unlike traditional mercury-filled thermometers, this model uses a non-mercury liquid filling. The red column provides a visible indication that can be read during routine laboratory and classroom activities.

With a compact 155 mm design, the instrument is suitable for portable use where a full-length laboratory thermometer may be inconvenient. Its slim construction allows convenient handling during temperature checks. The thermometer is supplied with a blue plastic protective case, helping protect the glass body during storage, carrying and transportation between laboratory workstations. An integrated pen-style pocket clip allows the case to be attached to a laboratory coat or shirt pocket. This provides convenient access for users who perform temperature measurements at different locations. The corresponding Brannan pocket thermometer design retains the glass tube in its cap during operation. Its total immersion calibration requires the measuring liquid column to be immersed according to the manufacturer’s instructions.

The instrument supports cooling experiments, low-temperature investigations, basic thermal science demonstrations and routine sample temperature measurements. Its portable design makes it useful for educational and general laboratory activities. For reliable measurements, position the thermometer correctly, allow the liquid column to stabilise and read the scale at eye level. Avoid contact with surfaces that may influence the measurement, and follow the designated immersion requirements. Safety Precautions: Handle the glass thermometer carefully to prevent breakage. Avoid sudden temperature changes, direct flame contact and temperatures outside the specified range. Follow laboratory procedures when handling broken glass or spilled spirit filling. Each unit is supplied as one Red Spirit Pocket Thermometer with a Blue Plastic Protective Case and Pen Clip. Calibration certification is not confirmed as included.

LabChoice Australia supplies pocket thermometers and laboratory temperature measurement equipment for secondary schools, universities, research facilities and science teaching laboratories across Australia.