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Remote CO/Temperature/Humidity/Dew Point Data Logger with Safety Alarm (RS-485, Ethernet, PoE, Wi-Fi)


Remote CO/Temperature/Humidity/Dew Point Data Logger with Safety Alarm (RS-485, Ethernet, PoE, Wi-Fi)

  Price:  $519.00  

Fastest Delivery: (Details) X Delivery Details
We ship via UPS and fastest delivery is with Next Day Air. UPS Next Day Air Early typically gets their product to them as early as 8am, Next Day Air gets their product typically there by 10:30am and Next Day Air Saver typically by 3pm. We ship same day for in stock items and the lead time is up to one week for out of stock items. Delivery is dependent on UPS and your shipping method.

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  • Simultaneous Display for CO, Temperature, Humidity and Dew Point
  • 2.8" LCD Touch Screen
  • Able to store up to 450,000 records with date and time stamps
  • Touch-screen and Web-based Configuration Interface
  • Simple and Powerful Software Utility, iOS APP and Android App Included
  • Able to Display Multilingual Messages on the Screen
  • Supports the DCON, Modbus RTU, Modbus TCP and MQTT Protocols
  • Includes RS-485/Ethernet/Wi-Fi Communication Interfaces
  • Compatible with IEEE802.11b/g/n standards
  • Support infrastructure and limit-AP modes for wireless networks
  • Relay Output for Audible/Visual Alarm or IAQ Device Control
  • Includes redundant power inputs: PoE (IEEE 802.3af, Class 1) and DC input
  • Desktop, DIN-Rail or Wall Mounting


The DL-300-WF series is an IAQ(Indoor Air Quality) monitoring module with Wi-Fi, Ethernet and RS-485 interfaces. It provides a WLAN connection which complies with the IEEE802.11b/g/n standards. With the popularity of 802.11 network infrastructure, the modules make an easy way to incorporate wireless connectivity into monitoring and control systems. The DL-300-WF series of data logger devices can be used to record CO, CO2, temperature, humidity and dew point information, including date and time stamps, and are able to store up to 450,000 downloadable records. Real-time data can be accessed from the DL-300-WF data logger from anywhere and at any time using the free Windows software, the iOS App or the Android App, as long as they are connected to the same local network as the data logger. Support is provided for popular industrial protocols such as DCON, Modbus RTU, and Modbus TCP, as well as the emerging machine-to-machine (M2M)/)IoT (Internet of Things) connectivity protocol – MQTT. The DL-300-WF Data Logger can be connected via widely used communication interfaces including RS-485, Ethernet and PoE, meaning that the device can be easily integrated into existing HMI or SCADA systems, and is easy to be maintained in a distributed control system.

Large 2.8" LCD Touch Screen, with clear Color Chart to indicate the CO/CO2 Level   Supports the MQTT Protocol for IoT Applications
Simple and powerful utility
The DL300 Utility can be used to configure the modules, monitor real-time data, group DL-300 modules so that the status of distribution groups can be viewed and managed. The utility also allows the log data to be downloaded and exported to a .CSV file that can then be imported into any industrystandard software or spread sheet for analysis.
Multi-platform Remote Access Software
Real-time data from the DL-300 Data Logger can be accessed from anywhere and at any time using the DL300 Utility, the iOS or Android App, or via a regular web browser, as long as they are connected to the same local network as the Data Logger.
Display Messages in Multiple Languages  
The display-message-on-screen function supports multiple language character sets based on UTF-8 encoding. Either pre-configured messages or dynamic messages can be remotely displayed using Modbus commands, or a dynamic message can be sent via the web-based interface.
Real-time data from the DL-300-WF series can be accessed from anywhere and at any time using the WF-IIOT-Utility and iOS App.


  • Transportation of Food or Pharmaceuticals
  • Food and Beverage Industry (HACCP)
  • Blood Stations and Pharmacies
  • Building and Energy Management
  • Warehouse Management
  • Museums, Archives and Galleries



CPU Module
Real Time Clock Yes
Built-in Web Server Yes
Temperature Measurement
Range -10 ~ +50°C
Resolution 0.1°C
Accuracy ±0.6°C
Humidity Measurement
Range 0 ~ 100% RH, Non-condensing
Resolution 0.1% RH, Non-condensing
Accuracy ±5% RH, Non-condensing
Dew Point
Range Calculated using temperature and relative humidity
Resolution 0.1°C
CO Measurement
Range 0 ~ 1000 ppm (Electrochemical)
Resolution 1 ppm
Accuracy ±5% of measured value
Response Time 30 seconds
Warm-up Time 300 seconds
Real Time Clock Yes
Data Logger Yes, 450,000 Records
Transmission Range 50 meters (LOS)
Standard Supported IEEE 802.11 b/g/n
Receive Sensitivity -95.7 dBm @ 1 DSSS, -74.0 dBm @ 54 OFDM
Output Power 18 dBm @ 1 DSSS, 14.5 dBm @ 54 OFDM
Mode Infrastructure & Limited AP
Encryption WEP, WPA and WPA2
Antenna 1 dBi (PCB Antenna)
Relay Output
Type Form A×1, SPST. 30 VDC @ 16 A or 250 VAC @ 16 A
Consumption PoE: 1.8 W (Max.)
Non-PoE: 1.7 W (Max.)
Powered from PoE IEEE 802.3af, Class 1 (48 V)
Powered from Terminal Block +12 ~+48 VDC
Dimensions (mm) 106 x 114 x 56 (W x L x H)
Installation Desktop, DIN-Rail or Wall Mounting
Operating Temperature 0 ~ +50°C
Storage Temperature -30 ~ +75°C
Humidity 10 ~ 90% RH, Non-condensing

References and Support

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