Liquid crystal hive thermometer

When you lift the hive roof in early February and see that little yellow disc reading 36 °C… you know the queen has started laying. And that everything is going well.

This liquid crystal hive thermometer is a simple yet incredibly useful tool. It is placed on the crown board, just below the hive roof, allowing you to monitor the internal temperature without disturbing the colony.

Thanks to its liquid crystal display, it shows the current temperature instantly, with the active value highlighted between 12 °C and 40 °C. It requires no batteries or maintenance, and in just seconds, it gives you key insights into what’s happening inside the hive:

• In spring, a rise above 34–35 °C usually indicates the presence of brood.
• In summer, high readings confirm that bees are actively thermoregulating.
• In autumn, lower temperatures may signal queenlessness or colony weakening.
• In winter, a live colony typically maintains some residual heat (at least 20 °C if clustered).

This small thermometer helps you detect issues early without unnecessary inspections: identify queenless hives, confirm activity after a split, or check brood rearing has started before adding new frames.

Made by Lyson in durable plastic, its round shape fits most crown boards with central holes. Lightweight, affordable, and fuss-free: just one glance tells you all you need to know.

Technical specifications:
• Measuring range: 12 °C to 40 °C
• Type: liquid crystal thermometer
• Format: circular, approx. Ø100 mm
• Installation: place or attach to the crown board
• No batteries or external power required

A small but powerful ally for any beekeeper who wants to observe without interference and make smarter decisions at a glance.