Portable Humidity & Temperature Data Loggers

DLT-01 & DLT-02

The DLT-01 and DLT-02 Data Loggers are compact electronic devices designed for measuring and recording temperature and humidity data. The DLT-01 Temperature Data Logger and DLT-02 Humidity & Temperature Data Logger are specifically used for monitoring temperature and humidity levels during the transportation and storage of products. Additionally, DLT-01 and DLT-02 loggers equipped with external probes are employed for monitoring temperature during product transportation.

Setting up and retrieving data from these loggers is a straightforward process. Users can easily configure the data logger and access stored data by connecting it to their computer’s USB port and using the user-friendly LoggerSoft software. The data stored within the logger’s memory can be transferred to the computer in CSV or PDF file formats. These loggers are powered by long-life lithium batteries, ensuring reliable and continuous operation.

Features

Measurement of air/product temperature and relative humidity
Data logging in a customizable mode, allowing users to define their own logging parameters
Logging of alarm events
Easy setup and data download by directly plugging the logger into a computer’s USB port
Compatibility with standard Windows applications
Replaceable lithium battery for long-term use
Red and green LEDs to display modes and alarms
Flexible user configuration mode using the dedicated Loggersoft software
The ability to download data reports with graphs in PDF or CSV formats without the need for pre-installed software

Technical Specifications

Temperature Measuring Range by The External Probe	-50…100 °С
Temperature Measuring Range by The Inner Sensor	-20…60 °С
Temperature Accuracy	0,5 °С (by the inner sensor) ± (0,4 + 0,002 x \|T\|) Т – operating temperature
Temperature Resolution	0,1 °С
Relative Humidity Measuring Range	0…100%
Humidity Accuracy	3%
Humidity Resolution	1%
Logging Interval	Between 60 seconds and 1 hour
Battery Type	СR2032, 3V
Battery Life	1 year (at 25°С and 1 min logging interval)
Memory (readings)	48000 (Temp.), 32000 (Temp. & RH)

Data Logger’s Design

The Data Logger is constructed with a durable polycarbonate case featuring a standard USB connector, two LEDs, and a control button.

Design image of loggers DLT-01 and DLT-02

The logger features two LEDs that provide the following indications:

Alarms during archiving
Logger status (archiving in progress, logger pending launch, archiving canceled)
Low battery
Data transfer mode on PC

These LEDs help users easily monitor and understand the logger’s status and any active alarms.

The LEDs’ indication can be activated by pressing the button to minimize battery discharge. Here’s how the button press works:

A single quick press of the button allows you to view alarms during archiving
Two quick presses of the button enable you to view the logger’s status
Low battery status can also be checked using the button if needed

This button functionality helps conserve battery life while providing access to important information when required.

Connection to PC

The logger can be connected to a PC in two different modes:

USB Flash Memory Mode: In this mode, the logger functions like a USB flash drive. You can upload a text file with archived data in CSV format (compatible with Excel) or a PDF report (compatible with Acrobat Reader) directly from the logger to your PC.
USB Device Mode for Data Transfer: When the logger is connected in this mode, you should use the LoggerSoft software. LoggerSoft allows you to retrieve all archived data from the logger and customize the logger’s settings as needed.

This button functionality helps conserve battery life while providing access to important information when required.

Models

DLT-01 Air Temperature Data Logger
DLT-01 Air Temperature Data Logger + 1 input for Product Temperature Probe (external)
DLT-02 Air Temperature / RH Data Logger