UNI-T UT331+ Temperature Humidity Meter

UNI-T UT331+ Temperature Humidity Meter

The UT331+ is a handheld temperature-and-humidity meter designed for continuous monitoring in environments where knowing both heat and moisture matter. It presents a clean, wide screen that shows both temperature and relative humidity side by side, often alongside indicators like dew point or wet-bulb when needed. Its casing is elongated, with sensor protection, buttons accessible at the front, and a sensor cover that can be opened or closed. The aesthetic is practical but solid, not overly fancy, built to sit in labs, factories, storage rooms or wherever climatic control is needed.

Inside this device is a system meant for reliable readings over time. It uses a high-precision humidity/temperature sensor, buffered with firmware that lets the device remember past peak and minimum values. There’s also a real-clock function so that the meter can tag measurements with timestamped data, which helps with reviewing changes over hours or days. It also supports both automatic and manual storage of readings so users can capture snapshots or continuous logging.

User interaction is fairly straightforward: buttons for holding the reading (“Hold”), for switching units (°C / °F), setting alarms if temp/humidity drift outside desired bounds, etc. The device runs on batteries (four AAA according to sources) so it can be placed without needing constant power lines, and there’s a USB interface for data transfer. All told, the UT331+ strives to be a tool that balances continuous environmental monitoring with simplicity, reliability, and ease of use.

• ℃/℉ selection
• Response time: around 1 second
• Humidity offset settings
• Temperature offset settings
• Dew point offset settings
• Wet-bulb temperature offset settings
• Auto power off
• Data hold/data recall
• MAX/MIN
• Auto record time setup
• LCD backlight
• USB interface for data and power

Applications:

• Environmental monitoring in laboratories or R&D.
• Quality control in food storage / processing.
• HVAC system monitoring and diagnostics.
• Clean-room or healthcare environment monitoring.
• Agricultural / greenhouse climate control.

Package Contents:

• 1× UT331+ meter unit
• 4× AAA 1.5 V batteries
• 1× USB data cable
• 1× English user manual (Operating Manual)

Documents:

• Datasheet
• User Manual