Owl 400 - DC Voltage

ACR Systems
$360.00 USD
Unit price per




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 Greater than 100 K ohms
Input Range 0 to 38.4 Volts DC (32 software selectable ranges availabl
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

Knowledge Base

Click here to visit our NEW Q&A pages.

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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