Thlevel Digital Thermometer Hygrometer – Large LCD, High-Accuracy Indoor Temp & Humidity

Effortless indoor climate monitoring

The Thlevel Digital Thermometer Hygrometer combines a large, easy-to-read 3.5-inch LCD with color-coded humidity indicators that signal dry, comfortable, or damp air. This visual cue helps you decide when to adjust humidifiers or dehumidifiers, so you can maintain a consistently pleasant room feel without guesswork.

Designed for flexible placement, this compact monitor fits neatly on a desk, shelf, or wall. It’s built to deliver clear readings that you can quickly act upon in everyday spaces—from a bustling home workspace to a quiet greenhouse corner. The device ships with fresh batteries installed for testing, and the unit itself is new, ready for your setup right out of the box.

Clear readings, precise data

You’ll get temperature readings from -40°F to 158°F (-40°C to 70°C) with a ±1.0°F accuracy and a 0.1°F resolution. Humidity ranges from 10% to 99% RH with ±5% RH accuracy and 1% RH resolution. Switch between Celsius and Fahrenheit at the touch of a button to match your preferred unit.

Flexible mounting for any space

Three mounting options give you versatile placement choices: a table stand, a convenient hanging hole, or sticky mounting with double-sided tape. This makes it well suited for living rooms, greenhouses, wine cellars, basements, warehouses, and more.

What you get and how it helps

• 3.5-inch LCD display for quick, legible readings from any angle
• Color-coded humidity indicator (dry, comfortable, wet) for instant context
• Wide temperature and humidity ranges with precise, actionable data
• Easy Celsius/Fahrenheit switch and multiple mounting options

• Compact, lightweight design that fits on a desk or shelf
• BatteryIncluded: two CR2032 cells pre-installed for testing
• Ideal for homes, offices, greenhouses, wine cellars, and storage areas

In real-life use, you’ll notice how quickly readings translate into adjustments—whether you’re tweaking a thermostat, calibrating a humidifier, or simply keeping an eye on conditions where bottles, plants, or electronics matter. While outcomes vary by space, the unit’s straightforward interface and reliable data offer a practical way to stay informed about your indoor environment without overthinking it.

Real-world versatility

Whether you’re tending delicate seedlings, preserving wine, monitoring a baby’s room, or organizing a climate-sensitive office, this monitor provides a dependable, at-a-glance snapshot of temperature and humidity. Its durable build and user-friendly features help you stay aligned with daily needs and seasonal changes.