QTengCX 12-Inch Outdoor Thermometer with Hygrometer — Metal, Waterproof, Battery-Free Analog Dial

The QTengCX 12-inch outdoor thermometer is a weatherproof, battery-free analog gauge that measures temperature and humidity with a clear, easy-to-read dial for indoor and outdoor use.

This metal-framed thermometer with integrated hygrometer gives you reliable climate information at a glance. Its oversized 12-inch face, mechanical coil operation and rugged construction make it suitable for patios, porches, garages, greenhouses and garden walls. Because it requires no batteries, it’s low-maintenance and continues to work through seasons of wet or cold weather.

How accurate and wide-ranging are the readings?

The dial displays temperature from -40 to 140°F and humidity from 0 to 100% RH, covering the full span most homeowners and gardeners need. The analog pointer responds to temperature and humidity changes via a built-in mechanical mechanism, avoiding electronic drift.

• Temperature range: -40 to 140°F for extreme climates.
• Humidity range: 0–100% relative humidity for indoor/outdoor monitoring.
• Dual-readout design places both gauges on the same large dial for quick comparison.
• Analog movement requires no recalibration for everyday use.

Will it stand up to weather and outdoor conditions?

The QTengCX housing uses a robust metal frame and a glass lens to shield the internal instruments from the elements. The construction resists rain, snow and UV exposure so it keeps functioning year-round when mounted in exposed locations.

• Metal frame provides impact and corrosion resistance compared with plastic models.
• Glass lens helps prevent fogging and scratches better than thin plastics.
• Sealed design reduces water intrusion that can affect readings.
• Freeze-tolerant movement continues to read in cold conditions.

How easy is it to read and install around my home?

The oversized 12-inch dial uses bold black numerals and distinct pointer tips so you can check conditions from across a yard or patio. Mounting is straightforward — hang it on a wall, fence post or porch using a single screw or nail.

• 12" diameter dial increases legibility at a distance.
• Bold numbering and clear humidity scale for fast readings.
• Simple hanging slot on the back for quick installation.
• Classic round design complements many exterior styles.

Why choose a battery-free analog gauge?

Because this unit uses a mechanical coil, it provides continuous operation without batteries or wiring, eliminating routine battery replacements and the risk of power failure. Analog operation also means fewer electronic components to corrode or fail outdoors.

• No batteries — lower long-term cost and maintenance.
• Mechanical movement performs reliably across temperature swings.
• Less electronic vulnerability to moisture and voltage issues.
• Simple design reduces the chance of malfunction in harsh conditions.

Who is this for: The QTengCX 12-inch waterproof thermometer/hygrometer is ideal for homeowners, gardeners, greenhouse keepers and anyone who wants an uncomplicated, durable way to monitor temperature and humidity outdoors. If you need a large, readable gauge that survives wet weather without batteries or complex setup, this analog metal unit suits patios, garages, sheds, porches and garden walls.