Wi-Fi and Ethernet web data loggers for indoor environmental monitoring

HD50

Wi-Fi and Ethernet web data loggers for indoor monitoring of temperature, humidity, pressure, CO2, illuminance or particulate matter, with integrated web server, Modbus TCP/IP and internal memory.

Introduction

Indoor monitoring is easier to manage when the logger is accessible over your network without special tools. The HD50 series combines environmental measurement and data logging with built-in Wi‑Fi or Ethernet connectivity and an integrated web server, so you can view real-time readings, charts and tables from any browser on the same LAN.
 
The series covers dedicated models for temperature, relative humidity, atmospheric and differential pressure, CO2, illuminance and particulate matter (PM1.0, PM2.5, PM4.0, PM10). Models measuring humidity and temperature also calculate absolute humidity, dew point, wet bulb temperature, mixing ratio and partial vapor pressure. For wider sensor coverage, HD50GH versions provide four configurable inputs for 0/4...20 mA, -50...50 mV to 0...10 V, Pt100/Pt1000, thermocouples (K, J, T, N, E) and potentiometric signals.
 
Networking and data delivery are built in. The logger supports proprietary communication and Modbus TCP/IP, manages up to 10 TCP/IP clients simultaneously and can send data via e-mail, FTP or to a Cloud endpoint when Internet is available. Alarm thresholds, hysteresis and delay can be set per quantity, with local buzzer and LED indication plus alarm e-mails.

Browser-based access
Integrated web server shows live values, charts and tables on the local network.
Flexible connectivity
Wi‑Fi or Ethernet plus Modbus TCP/IP, with up to 10 TCP/IP clients.
Broad model choice
Options for T/RH, Patm, ΔP, CO2, lux and PM monitoring, plus 4-channel input versions.
Smart alarms
Two thresholds per quantity with hysteresis and delay, signaled by buzzer, LED and e-mail.

Features

Integrated web server

Configure the logger and monitor measurements using a web browser by entering the device IP address.

Communication protocols

Supports proprietary TCP and Modbus TCP/IP with configurable ports and socket allocation.

Data logging

Measuring and logging intervals from 1 s to 60 min, with memory set to cyclic overwriting or stop when full.

Data export and transfer

 Data can be sent via e-mail (SMTP), FTP and to a Cloud endpoint, with LOG and CSV format options.

Display options

Models are available without display, with custom LCD (L) or graphic LCD (G), plus front LEDs for power, network and alarm status.

Indoor mounting

Designed for wall mounting indoors with IP54 protection (with protective cap on RJ45 connector).