LCD Digital Thermometer Hygrometer HTC-1 Indoor

Description

The HTC-1 is a compact digital thermo-hygrometer designed for indoor environmental monitoring, with a large LCD that simultaneously displays temperature, humidity, and time. It is commonly used in living rooms, offices, greenhouses, incubators, and reptile terrariums where basic temperature and humidity awareness is needed .

The device is housed in a plastic enclosure measuring approximately 100 × 108 × 20mm, with a large LCD screen for easy reading from a distance . It is powered by a single AAA battery (included with some suppliers, not others) and can be placed on a desk using the fold-out stand or hung on a wall via the rear hook .

Beyond basic thermo-hygrometer functions, the HTC-1 includes a clock, daily alarm, hourly chime, calendar, and min/max memory for temperature and humidity . It supports °C/°F switching and 12/24-hour time format . The min/max memory allows users to review the highest and lowest readings since the last reset—useful for monitoring overnight temperature drops or humidity spikes .

Critical limitations: This is a budget consumer-grade device, not a precision instrument. User reviews report inconsistent accuracy (some units off by 2–3°C), slow response, and occasional failures within months . The humidity sensor is particularly prone to drift and may not be reliable for applications requiring calibrated measurements. It is not a data-logging device and cannot connect to microcontrollers.

Features

• Large LCD Display: Simultaneously shows temperature, humidity, and time with bold digits .

• Min/Max Memory: Records highest and lowest temperature/humidity readings since last reset .

• Clock & Alarm: 12/24-hour clock, daily alarm, and hourly chime .

• Calendar Function: Displays month and date .

• °C/°F Switchable: Toggle between Celsius and Fahrenheit display .

• Desk or Wall Mount: Fold-out stand for tabletop use; rear hook for wall hanging .

• Low Power: Single AAA battery operation .

Technical Specifications