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Manufacturer and global supplier
of temperature data-collecting
devices used for documenting
products throughout the cold
chain. ISO 9001:2008 certified.


Cold Chain Solutions

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•Temperature, RH, CO2 & Vibration Data Logger

EDL-4S Temperature, RH, CO2 and Vibration Data Recorder

4-Channel Temperature, RH, CO2 and Vibration Data Recorder

Now obtain Temperature, RH, CO2 and Vibration profiles in a compact low-cost 4-channel LCD data logger! Use either as a stand-alone device, or as a Wireless Data logger when connected to our separate WiFi Reader Station. The Reader Station may be battery powered or AC powered, your choice. This device is perfect for mapping your warehouse, refrigerators or monitoring industrial machinery during shipment or stationary applications.

  • Temperature Sensor: RTD -200° C to +380° C, Accuracy ±0.3° C
  • Relative Humidity Sensor: Capacitive humidity readings 0% to 100% RH.
  • CO2 Sensor: Infrared 0 to 30,000 PPM accuracy ± 30 PPM ±5 %
  • Vibration sensor: 3-D Accelerometer with a sampling rate of 1 to 400 Hz.

EDL-4S Data Sheet   Temperature, Humidity, Vibration Data Logger
Call for Pricing   Required Accessories:
MaxiThermal software 
NIST Certificate = no charge
NIST Certificate + 1, 2 or 3 Point Calibration Available
Temperature Sensor   Wired chip in glass thermistor
Temperature Range   -200°C to +380°C / -328°F to +716°F
Temperature Accuracy  
±0.3°C at room / ±1.0°C at extremes / 0.4°F at room / ±2.7°F at extremes
Temperature Resolution   0.1°C / 0.18°F
Memory EEPROM, Storage   128k data memory for 4 sensors, Automatic data memory size adjustment.
Measurement Intervals   Programmable from 2 seconds per reading. For example:
4 days = 0 min. 43 sec.
7 days = 1 min. 15 sec.
16 days = 2 min. 50 sec.
30 days = 5 min. 19 sec.
60 days = 10 min. 38 sec.
90 days = 15 min. 57 sec.
365 days = 1 hr. 4 min. 39 sec.
CO2 Sensor   Infrared 0 to 30,000 PPM. Accuracy ± 30 PPM ± 5%
Humidity Range   0% to 100%
Humidity Accuracy   ±3% RH from 25% to 75%, ±5% RH at extremes
3-D Accelerometer   Up to 16G and 400 hertz sampling.
Vibration Accuracy   ±0.05G for 0 to 16G.
Vibration Resolution   ±0.01G for 0 to 16G
Alarm Programming   High and low alarm limits set by temperature, humidity and time.
Alarm Modes   Time Over Alarm (TOA) displays for each channel.
Alarm Notifications   Alert notification to e-mail, phone, pager and SMS
Computer Interface   USB 2.0 with mini USB-B connector. Optional WiFi via Reader Station.
Power Source   1- LiSoCl2 3.6V 1.2 Ah for logger.
4-LiSoCl2 3.6V 2.4 Ah or 120V/22V AC adaptor for WiFi Reader.
Display   FSTN segment LCD
Viewing Area   60 x 40 mm
Size   10.5 cm(l) x 5 cm(w) x 2.5 cm (h) / 4.13 in.(l) x 1.96 in (w) x .98 in.(h)
Weight   300 grams / 10.58 oz.
Warranty   3 Months
Probes   Optional cable probes up to 30 meters for RTD. RJ11 interface for 4 sensors.
CE Certified   Yes
Waterproof   Yes
MaxiThermal Software   MaxiThermal software is not 21CFR Part 11 compliant
click here for 21CFR Part 11 Compliant Software
Software Highlights   Report Summary & Statistics
File Manager
Note Attachment
Elapsed Time view or Date/Time Recorded view
Celsius, Fahrenheit or Kelvin display
3D view option

For more information:

Download a PDF of the EDL-4S Product Brief.
Download a PDF of the MaxiThermal Quick Start Guide.

Get Adobe ReaderTo open the PDF files above, you will need Acrobat Reader 9.0 or higher.
Click the icon to download the latest reader software.

  rev. Feb-02-2016