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Temperature and Humidity Data Loggers
TRODEKS Engineering | Thermocouples, Pressure Transducers, Flow Meters, PID Controllers
  • Integral Temperature/Humidity Sensors
  • OMYL-RH20 Has Internal Temperature/Humidity Sensors
  • OMYL-RH20E Has Temperature/Humidity Sensors Fitted in Integral Probe
  • Up to 4 Million Readings (Internal Memory Size)
  • Up to 4 Hz Sampling Rate
  • High Accuracy
  • 20 Bit A/D Converter
  • Shock Proof, IP65 Housing (Dust and Water Jet Proof)
  • Transfer Rate of 500 kbps
  • Low Current Consumption
  • Up to 4 Years Battery Life
 Manuals (contact with email : [email protected])


The OMYL-RH20 and OMYL-RH20E are robustdevices capable of logging temperature and humidityreadings and are software configurable to recordeither both of these parameters or just individualvariables. These data loggers are available withstandard memory of 100,000 readings (OMYL-RH20,OMYL-RH20E) or expanded memory of 4 millionreadings (OMYL-RH20-4M, OMYL-RH20E-4M). TheOMYL-RH20/OMYL-RH20-4M have built-in sensorsfor temperature and humidity. The OMYL-RH20E/OMYL-RH20E-4M have the temperature and humiditysensors fitted in an integral 100 mm steel probe. Thesedata loggers are suited for a variety of applicationsincluding environmental or climate studies,meteorological research and also in clean rooms andlaboratories.

The storage medium is non-volatile flash memory sono data is lost if the battery becomes discharged. Datalogger setup as well as data retrieval is accomplishedusing the included standard OMYL-SOFT software.Downloaded data is stored in the OMYL-SOFTsoftware as a text file for viewing in third party softwarepackages or Microsoft Excel. The OMYL-SOFTstandard software does not include any graphingfunctionality. Graphing and analyzing downloaded datafiles requires the OMYL-SOFT-PLUS version of thesoftware (sold separately).

Sensor Type
    OMYL-RH20/OMYL-RH20-4M: Internal temperature and humidity sensors
    OMYL-RH20E/OMYL-RH20E-4M: Temperature and humidity sensors fitted in integral probe
    Range: -30 to 70°C (-22 to 158°F) with standard lithium battery (included); -40 to 90°C (-40 to 194°F) with optional high
    temperature lithium battery
    Resolution: 0.01°C (0.02°F)
    Accuracy: See chart on PDF
    Range: 0 to 100 %RH
    Resolution: 0.01 %RH
    Accuracy: See chart on PDF
Reading Rate: 1 second to 24 hours; 2 Hz, 4 Hz in fast mode
Start Modes: Immediate start, delayed start
Memory Capacity
    OMYL-RH20, OMYL-RH20E: 100,000 readings
    OMYL-RH20-4M, OMYL-RH20E-4M: 4 million readings
Memory Wrap Around: Yes (software configurable)
Battery: 3V lithium battery [standard temperature range battery (included), optional high temperature range battery]; user replaceable
Battery Life (Standard Temperature Range Battery): 4 years at 1 minute reading rate, 230 days at 10 second reading rate, 25 days at 1 second reading rate
LED Functionality: Integrated status LED indicates data logging status, low battery or alarm condition
Alarms: Software programmable high/low thresholds
Computer Interface: USB (interface cable included)
Software: XP SP3/Vista/7 and 8 (32- and 64-bit)
Operating Environment: -30 to 70°C (-22 to 158°F) with standard lithium battery; -40 to 90°C (-40 to 194°F) with optional high temperature lithium battery
    OMYL-RH20, OMYL-RH20-4M: 30 H x 50 mm dia (1.18 x 1.97")
    OMYL-RH20E, OMYL-RH20E-4M: 30 H x 50 mm dia (1.18 x 1.97") with 100 L x 8 mm dia probe (3.94 x 0.31")
Weight: 70 g (2.5 oz)
Enclosure: Robust, shock-proof POM, IP65
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