Bimetal Thermometer Afriso BITH 100 Ø100mm 0–120°C 1/2" Connection Class 2.0

The Afriso BITH 100 bimetal thermometer is a mechanical, direct-reading instrument with a 100 mm diameter dial and a measuring range of 0–120°C. Designed for pipe or vessel mounting via a 1/2" lower threaded connection, this thermometer delivers straightforward temperature indication without the need for power. Its robust bimetal sensing element and clear analogue scale make it suitable for routine monitoring in HVAC, heating systems and many industrial applications where a reliable, low-maintenance temperature display is required.

Advantages

The thermometer provides simple and reliable temperature measurement using a proven bimetal mechanism, ensuring stable readings and long service life. The 100 mm dial offers good readability at a distance, while the mechanical construction eliminates electrical failure modes and power dependence. The 1/2" lower threaded connection enables direct installation into pipes or vessels for convenient positioning and fast replacement when needed. Class 2.0 accuracy offers an appropriate balance between cost and precision for general process and building services monitoring.

Suitable for

• HVAC system monitoring and diagnostics
• Heating systems and boiler temperature indication
• Industrial equipment and process tanks with moderate temperature ranges
• Maintenance and retrofit projects requiring a robust, non-electrical gauge

Key specifications

• Dial diameter: 100 mm
• Measuring range: 0–120°C
• Connection type: lower threaded 1/2" for pipe or vessel mounting
• Sensing element: bimetallic coil
• Accuracy class: 2.0
• Display: analogue pointer on graduated scale
• Material and case: durable industrial housing suitable for typical heating and HVAC environments

How to use

Mount the thermometer by screwing the lower 1/2" threaded connection into the appropriate port on the pipe or vessel; ensure a proper seal using suitable thread sealant or gasket as required by the installation. Position the dial so the scale is easily visible for routine reading. Allow the instrument to stabilise to the medium temperature before taking readings. For accurate monitoring, avoid installing the thermometer near strong heat sources or drafts that could affect local temperature measurement.

Usage recommendations

Regularly inspect the mounting and external condition of the thermometer. Clean the dial cover to maintain readability and check that the pointer moves freely. In systems where higher accuracy or remote monitoring is required, consider complementary sensors or electronic transmitters; for standard HVAC and heating tasks, this bimetal thermometer provides a durable and low-maintenance solution.