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Portable Temperature and Humidity Data Loggers

$80.00

Item# OM-91

 This item is available for quick shipping
Volume discounts available
Volume Discount Schedule
Quantity Price each
1-9 $80.00
10-24 $76.00
25-49 $74.40
50-99 $71.20
100-199 $69.60
200+ $68.00

In stock

Lead Time ( If not in Stock): 7 Days

Portable Temperature and Humidity Data Loggers OM-91 OM-91
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  • Models for Temperature (OM-91) and Temperature/Humidity (OM-92)
  • Immediate, Delayed (Specific Date/Time) or Pushbutton Start
  • Real-Time Mode
  • User-Configurable High and Low Alarms
  • LED Status Indicators
  • USB Interface for Fast Data Transfer
  • Compact, Light Weight, Easy-to-Use
  • Long Battery Life
  • Free Software Download (Click on Software Icon Below)

Product info

Measurement Type
Temperature
Number of Measurements
1
Input Type
Internal
Maximum Samples
~65K
Power
Battery
Data Interface
USB
Max Sampling Rate
1 sec
Additional Feature
Not Applicable

Product Specs

  • Alarm High and Low alarms for temperature and humidity dedicated alarm LED indicator
  • Configurable Parameters Immediate start on disconnect from PC

Please check out Newest Released Temperature and Humidity Portable Data Loggers with LCD Display OM-HL-SH Series or OM-HL-SP Series for more advanced features with better price.

The OM-90 Series are portable, battery operated, temperature (OM-91) and temperature/humidity (OM-92) data loggers. The OM-90 Series data loggers offer accurate and repeatable logging for temperature and relative humidity. Temperature is measured to an accuracy of ±0.3°C over the range of 5 to 60°C (41 to 140°F) and ±2.0°C over the full range of -30 to 80°C (-22 to 176°F). Relative humidity is measured to an accuracy of ±3.0% RH over the 20 to 80% RH range and ±5.0% RH over the 0 to 100% RH range. Both temperature and relative humidity are logged at a user configurable logging rate which is software selectable.

These data loggers are ideal for transportation applications where it is necessary to document that the material in-transit has stayed within particular environmental limits. High/low alarm limits can be set above or below which LED indicators will be activated so that the user can become aware that the desired transportation conditions have been exceeded.

Each data logger can be assigned a 16 character name. This can be helpful in applications where multiple data loggers are used and there is a need to distinguish between them (for example based on location).

The data logger includes a very easy to use software application. The application is used for configuration of the logger, extraction of logger data, graphically viewing data, spread sheet analysis of data and saving data to file (typically in comma separated value CSV file format) for third party applications such as Microsoft Excel. The graphical user interface is completely intuitive in terms of configuring new devices and extracting data from a field device. When the user has multiple devices requiring the same setup then a logger setup from a saved configuration file can be preloaded into the application to help expedite the process and ensure all loggers get setup identically. The application does not require any driver installations to connect to the data logger. Just install the software, run it and then connect the data logger.

SPECIFICATIONS
Temperature
    Range: -30 to 80°C (-22 to 176°F)
    Resolution: 0.01°C
    Accuracy: ±0.3°C from 5 to 60°C (41 to 140°F)
    Calibration Accuracy @ 25°C ±20°C: ±0.1°C
Humidity (OM-92 Only)
    Range: 0 to 95% RH
    Resolution: 0.01% RH
    Accuracy: ±3% over 20 to 80% RH range; ±5% RH below 20% RH or above 80% RH
    Calibration Accuracy @ 25% RH: ±1.8% RH @ 25% RH
Memory
    OM-91: 65,520 temperature measurements
    OM-92: 65,520 temperature and 65,520 humidity measurements
Start Modes: Immediate start on disconnect from PC, delayed start (scheduled date/time) or pushbutton start
Recording Mode: Stop on memory full; when data logger operation is start/stopped by user intervention via button press, last memory location is retained
Recording Interval: 1 sec, 10 sec, 30 sec, 1 min, 10 min, 30 min, 1 hr (software selectable)
Software Compatibility: Windows XP/Vista/7, 8 & 10 (32-bit and 64-bit)
Real Time Logging: Displays real time data when connected to a PC
Real Time Clock: Time automatically synced to PC
Battery Backup: Continues to keep time when off
Accuracy: 0.50 sec/day (~3 min/year)
Alarms: High and Low alarms for temperature and humidity; dedicated alarm LED indicator
LED Indicators: Alarm and status LEDs
Device ID: Each data logger can have a 16 character name assigned
Connections: 0.9 m (3') USB Micro-B to PC cable (included)
Power: 3V lithium CR2450 battery included (user replaceable)
Battery Life: Over 4 year battery life while logging
Bypass Mode: Unit is powered from USB when connected to conserve the battery
Dimensions: 53 H x 33 W x 15 mm D (1.38 x 2.36 x 0.6')
Weight: 25 g (0.9 oz)

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- lead time? - How do we read the measurement on a automation plc (analog signal 0-10V or 0-20mA or 4-20mA etc...) or is it direct modbus serial or tcp connection or other? - How often does it need calibration? - what is the life span?

Asked by: Marcio
Hello Marcio This device strictly works via USB on its own proprietary software, it does not have tcp or modbus capability.
Answered by: JA Engineer
Date published: 2019-09-25

Is the OM-92 RoHS compliant?

Asked by: Daniel at Atia
The RoHS2 status of this part number has not yet been determined. OMEGA is diligently working to determine the RoHS2 status of this product, but we are still waiting to receive information from our suppliers. The status of this product may change in the near future so please check back soon. Thank you.
Answered by: Application Engineer
Date published: 2019-07-11

Are these NIST recognized calibrated? Can they be calibrated on a routine basis?

Asked by: Kurt1234
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