UNI-T UT330B Humidity / Temperature Datalogger

The UNI-T UT330B is a compact USB logger built to quietly monitor environmental conditions over long spans of time. It is designed to sit in place such as in a storage room, greenhouse, or cold-chain container recording changes in temperature and humidity without needing constant attention. Its body is unobtrusive, with a clear display showing current readings, and simple indicators to show status (such as whether the device is recording or if an alarm is triggered). Because it stores a large number of readings, the device allows for historical review of conditions rather than just snapshots.

The device is engineered to handle real-world conditions: it runs over many days or weeks on its internal battery, tolerates typical ambient fluctuations, and is built to maintain its calibration. It includes simple controls or configuration via software once connected via USB, allowing setup of what parameters to log, how often, and what thresholds should trigger alerts. When events exceed thresholds (too hot, too humid, etc.), visual cues (LED) indicate out-of-range status.

In use, the UT330B becomes a trusted recorder. After setup, it requires minimal intervention; users can extract logs via USB and view them in standard formats (CSV, TXT, etc.), enabling easy analysis. Whether for verifying that sensitive contents were kept under proper conditions, or ensuring compliance in facilities, the device supports accountability. Its balance of memory capacity, simplicity of design, and reliability of readings aims to give users confidence that the environmental data they’re collecting is meaningful and usable.

Features:

• Stores up to ~60,000 data entries.
• USB data transfer to PC.
• Configurable alarm thresholds for temp/humidity.
• LED indicator when readings go out of set range.
• Outputs data in CSV/TXT/BMP (plot) formats.
• Supports setting of high/low warnings.
• Internal battery powered (for sustained recording).
• Compact, portable design.

Specifications:

Specifications			UT330B
Temperature	Range	-40°C~80C (-40°F~176°F)	√
	Accuracy	0°C~40°C	±0.5℃
		-30°C~0°C, 40℃~70℃	±1℃
		-40°C~-30°C, 70℃~80℃	±2℃
	Resolution	0.1℃/0.1℉	√
Relative humidity	Range	0%RH~100%RH	√
	Accuracy	20%RH~80%RH	±3%RH
		＜20%RH or ＞80%RH	±5%RH
	Resolution	0.1%RH	√
Features
IP67			√
℃/℉ selection			√
Temperature offset settings			√
Humidity offset settings			√
Data storage			60000
Data recall			√
USB interface			√
Auto record time setup			√
User name settings			√
Alarm threshold			√
Start mode setup			√
General Characteristics
Power	3.6V 1/2 battery (R6) x 1
Product color	Grey
Product net weight	52g (with battery, no bracket)
Product size	122mm x 30mm x 24mm

Applications:

Temperature and humidity measurement in computer room

Environment measurement in office

Package Contents:

• 1× UNI-T UT330B datalogger unit
• 1× Battery (pre-installed or included)
• 1× Clip (mounting accessory)
• 2× screws (mounting)
• 1× Software (USB / PC)
• 1× User-manual

Documents:

• Datasheet
• User Manual