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OMYL-RH25-Series
Temperature/Humidity Data Loggers with 2 External Inputs
Models In Stock
- Integral Temperature/Humidity Sensors
- Plus 2 External Inputs for Temperature (Pt100/Pt1000 RTD/Thermistor) or Temperature/Humidity Probes
- Up to 4 Million Readings (Internal Memory Size)
- Up to 4 Hz Sampling Rate
OMYL-RH25-Series
From
$
610.23
Models In Stock

Product Overview
- Additional Features 1 Shock Proof, IP65 Housing
- Battery life 25 hr
- Battery Size and Type 3V Li-ion
- Data Interface USB
- Data Interface Note USB (interface cable included)
- Diameter 50 mm
- Enclosure Acetal
- Enclosure Ratings IP65
- External Temperature Resolution 0.01 °C
- Height 30 mm
- Internal Temperature Resolution 0.01 °C
- LED Indicators Integrated status LED indicates data logging status, low battery or alarm condition
- Measurement Type Relative Humidity, Temperature
- Memory 100000
- Memory Modes Yes
- Number of Measurements 4
- Operating Temperature, Max 70 °C
- Operating Temperature, Min -30 °C
- Process Temperature, Max 250 °C
- Process Temperature, Min -70 °C
- Relative Humidity, Max 1
- Relative Humidity, Min 0%
- Sampling Rate 1 Hz (1 update/second)
- Sampling Rate Note 1 second to 24 hours; 2 Hz, 4 Hz in fast mode
- Software Compatibility XP SP3/Vista/7 and 8 (32-bit and 64-bit)
- Start Modes Delayed Start, Immediate Start
- Supply Power Type Battery
- Temperature Sensor Type RTD or Thermistor
- Temperature Sensor Type Note Pt100 or Pt1000 RTD
- Weight 70 g
The OMYL-RH25 is a temperature/humidity data logger that also accepts two external temperature or temperature/humidity inputs. This data logger is available with standard memory of 100,000 readings (OMYL-RH25) or expanded memory of 4 million readings (OMYL-RH25-4M). The following inputs can be configured:
• Internal temperature and humidity sensors
• External temperature (Pt100/Pt1000 RTD, Type U thermistor)
• External temperature/humidity (for combined external temperature/humidity probes)
The storage medium is non-volatile flash memory so no data is lost if the battery becomes discharged. Data logger setup as well as data retrieval is accomplished using the included standard OMYL-SOFT software. Downloaded data is stored in the OMYL-SOFT software as a text file for viewing in third party software packages or Microsoft Excel. The OMYL-SOFT standard software does not include any graphing functionality. Graphing and analyzing downloaded data files requires the OMYL-SOFT-PLUS version of the software (sold separately).
SPECIFICATIONS
Internal Temperature
Temperature Range: -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
Temperature Resolution: 0.01°C (0.02°F)
Accuracy: See chart on PDF
External Temperature Input
Sensor: Pt100 or Pt1000 RTD, U thermistor (2000Ω @ 25°C)
Range: -70 to 250°C (-94 to 482°F)
Resolution: 0.01°C (0.02°F)
Accuracy: See chart on PDF
Internal/External Humidity
Humidity Range: 0 to 100% RH
Humidity 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-RH25: 100,000 readings
OMYL-RH25-4M: 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
Dimensions: 30 H x 50 mm dia (1.18 x 1.97')
Weight: 70 g (2.5 oz)
Enclosure: Robust, shock-proof POM, IP65
• Internal temperature and humidity sensors
• External temperature (Pt100/Pt1000 RTD, Type U thermistor)
• External temperature/humidity (for combined external temperature/humidity probes)
The storage medium is non-volatile flash memory so no data is lost if the battery becomes discharged. Data logger setup as well as data retrieval is accomplished using the included standard OMYL-SOFT software. Downloaded data is stored in the OMYL-SOFT software as a text file for viewing in third party software packages or Microsoft Excel. The OMYL-SOFT standard software does not include any graphing functionality. Graphing and analyzing downloaded data files requires the OMYL-SOFT-PLUS version of the software (sold separately).
SPECIFICATIONS
Internal Temperature
Temperature Range: -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
Temperature Resolution: 0.01°C (0.02°F)
Accuracy: See chart on PDF
External Temperature Input
Sensor: Pt100 or Pt1000 RTD, U thermistor (2000Ω @ 25°C)
Range: -70 to 250°C (-94 to 482°F)
Resolution: 0.01°C (0.02°F)
Accuracy: See chart on PDF
Internal/External Humidity
Humidity Range: 0 to 100% RH
Humidity 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-RH25: 100,000 readings
OMYL-RH25-4M: 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
Dimensions: 30 H x 50 mm dia (1.18 x 1.97')
Weight: 70 g (2.5 oz)
Enclosure: Robust, shock-proof POM, IP65
PDFs & Manuals
Accessories
accessories
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consumables
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