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The SPI 91-284-0 is a wall-mounted combination hygrometer and thermometer clock with a fluorescent display, housed in a plastic case with a 9-inch diameter. Designed for clear, at-a-glance readings of time, relative humidity, and temperature, this instrument is well suited for equipment rooms, mechanical spaces, server rooms, and similar environments where ambient condition monitoring matters. Technicians in HVAC, facilities maintenance, and building services commonly install this type of unit as a quick-reference tool during service calls or for ongoing space monitoring.
This clock is appropriate for indoor use in residential or light commercial settings where humidity and temperature tracking is needed without a dedicated standalone instrument. It mounts directly to a wall surface and requires no special wiring or tools beyond basic fasteners. The fluorescent display aids readability in low-light mechanical rooms or utility spaces.
Designed as a general-purpose wall-mounted hygro-thermometer clock suitable for indoor mechanical, utility, and equipment room applications.
Installation is performed by facilities technicians or HVAC service personnel. Mount to a flat interior wall surface using appropriate fasteners for the wall material. No electrical wiring is required. Avoid mounting in locations exposed to direct moisture, condensation, or outdoor conditions, as the plastic housing is rated for indoor use.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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