Harvia SANDGLASS HARVIA SAC19900 — Sandglass timer for sauna

Harvia SANDGLASS HARVIA SAC19900 — sandglass timer for sauna provides a mechanical, straightforward way to measure time during sauna sessions. The device is made with heat-resistant materials and a compact shape to fit typical sauna interiors. Without electronics or batteries, the sandglass delivers silent operation and a clear visual indication of elapsed time, helping users to manage bathing intervals and rest periods reliably.

Advantages

The sandglass is durable under elevated temperatures and humidity commonly found in saunas and requires no power source or electronic maintenance. Its simple, mechanical design offers immediate visual feedback of session duration and is easy to install or place on a shelf. The compact form factor minimizes space usage while maintaining readability of the sand flow.

Suitable for

• Home saunas for timing steam and rest intervals
• Public or commercial sauna rooms where a low-maintenance timer is preferred
• Spa facilities for simple session management without electronics
• Sauna users who prefer silent, mechanical timekeeping

Key specifications

• Mechanical sandglass operation — no electronics or batteries needed
• Heat-resistant construction suitable for typical sauna temperatures
• Compact dimensions designed for shelf or wall placement in sauna interiors
• Clear sand flow for visible time measurement

How to use

Place the sandglass on a stable, heat-resistant surface or mounting location inside the sauna where it is easily visible. Turn the sandglass to start timing at the beginning of the session; the sand flow indicates elapsed time until all grains have passed to the lower chamber. After the sand has fully passed, flip the glass to measure an additional interval. No setup or calibration is required.

Usage recommendations

Position the sandglass away from direct steam jets and extreme radiant heat to prolong life and maintain accurate visibility. Inspect the glass periodically for cracks or blockages in the sand channel and avoid dropping or striking the timer. For consistent timing, use the sandglass on a level surface and allow it to cool between prolonged high-temperature exposures.