Owl 500 - DC Current

ACR Systems
$378.00 USD
Unit price per


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OWLS are rugged and versatile data loggers that records various parameters with ease and convenience.

Typical applications for OWL400 & OWL500 include:

  •  Monitoring pH of wastewater
  •   Water metering for billing purposes
  •   Trouble shooting Programmable Logic Controllers

Key Features:

  • One channel with options to record temperature, voltage or process current.
  • Configurable alarm thresholds and modes with blinking red light
  • High capacity memory


Accuracy +/- 1% of full scale
Alarm Type Flashes red LED once every 8 seconds
Battery 3.6 volt Lithium
Case Material Noryl® plastic (All models)
Clock Accuracy +/- 2 seconds per day
Communication Optical data transfer; data can be transmitted through glass or transparent medium up to 25 mm (1in)
Input Impedance 100 ohms
Input Range 0 to 24 mA DC
Memory Size 32 KB
Operating Limits -40 to 70°C (-40 to 158°F) and 0 to 95% RH (non-condensing
PC Requirements Windows PC with a least 256MB RAM, 250MB of hard drive space and one free serial or USB port.
Resolution 8-bit (1 part in 256)
Sampling Method Continuous (First-in, First-out)*, Stop When Full (Fill-then-stop)
*Not available for sample rates faster than 8 seconds
Sampling Rate User selectable rates from 5 per second to once every 12 hours
Size 60 x 48 x 19 mm (2.4 x 1.9 x 0.7 in)
Weight 54 g / 1.9 oz (All models)


Software & Interface Cable are required for full functionality of the product.

Owl External Sensor Cable


ACR softwares are powerful, easy and intuitive that opens a window into the analysis of your data collected. Data can be viewed in various formats and presentation quality graphs can be exported into any WORD program. The software provides electronic records for a reduced paper trail.

TrendReader Full License TrendReader Interface Pkg TrendReader on USB Full


For a product sheet, please click below for a pdf version.

Product Sheet

A link to the Manual is available by clicking on the link below.

Owl Manual


Click here to visit our NEW Q&A pages.


Data loggers are often used in highly regulated environments such as food and pharmaceutical production and storage where strict safety regulations apply. Regulatory agencies generally require proof of calibration.

ACR calibrations are performed using reference standards that have been calibrated and are traceable to the US National Institute of Standards & Technology (NIST). This ensures that all ACR data loggers meet, and perform to, their published specifications, allowing you to be confident that they will assist you in achieving your compliance requirements.

Calibration certificates are provided with every calibration we perform. ACR Systems is an ISO 9001:2015 registered company and calibration records are kept as part of our quality system and can be made available for customer audits.

Calibration Service

Technical assistance is free for the life of the product. To speak with a member of our Support Team:

Call toll-free @ 1-800-663-7845 or email: customerservice@acrdatasolutions.com

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