Single Channel AC Current Data Logger

  • Single Channel
  • Monitor a wide range of AC current
  • Sense AC Current from inside equipment
  • 10-year battery life
  • Flashing Visual Alarm
  • Memory Capacity of 32,767 readings
  • Optical data transfer
  • Fast sample capability

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ACR OWL 300 Shown

The OWL 300 data logger records current in environments that typical recorders cannot withstand. Due to its small size, the OWL 300 can go directly into an electrical panel or even inside small electrical equipment allowing the user to record electric current in a safe, discreet, and convenient manner.
OWL300 Specifications
Specifications Descriptions
No. of Channels

One Current Channel to be used with OWL A60FL, OWL A65FL, OWL A70FL, OWL A75FL

Accuracy +/- 4% F.S above 10% of Range
Memory Size 32 KB (32,767 readings)
Sampling Methods 1. Continuous (First-in, First-out)
2. Stop when full (Fill then stop)
Rates User selectable rates from 5 per second to once every 12 hours
Communication Removable snap type connector
Resolution 8-bit (1 part in 256)
External Connector Removable snap type connector
Power Source Battery 3.6 volt Lithium
Battery Life 10 Years under normal use
General Specifications Size 60 mm x 48 mm x 19 mm (2.4" x 1.9" x 0.7")
Case Material Noryl plastic
Mounting Magnetic backing and locking eyelet
Certification Certified to CE standard EN50082-1: 1992 (European Generic Immunity) covering ESD, RFI, and EFT/B
Meets CE Standards EN55011 Class B: 1991 (European Radiated Emissions) and CISPR Class B: 1991 (International Radiated Emissions)
PC Requirement Processor/Operating System IBM PC or 100% compatible running Windows 3.1, '95, '98, 2000, ME, NET, XP
Available Hard drive space At Least 2MB
Memory At Least 2MB
Communication Ports 1 Free Serial Port
Basic Software: TrendReader 2 System Requirements (Required for Standard use)
Processor Pentium II-350MHz or Faster
Operating System Windows 2000 SP4, XP SP2
Available Hard drive space At Least 250 MB of Hard disk space
Memory 128 mb of Ram (256 MB Recommended)
Communication Ports USB or Serial Port, dependant on interface cable
Internet Browser Internet Explorer 6 or higher
Screen resolution 1024 x 768 or higher
Additional Equipment Mouse or other pointing device
More info More info on the TrendReader Standard 2>>
Ordering Information
ACR TrendReader 2 Software and a Probe are required for usage
Model Description Buy Online Price
OWL300PLASTIC  ACR Systems SR-003 SmartReader 3 - 32 KB Four channel, 8 bit, 32 KB data logger (One ambient temperature and three AC current channels). (Catalog# 01-0026 Discontinued
See: SmartReaderPlus 3
MFR ID: 01-0228
ACR Systems TRS2-FULL INSTALL TrendReader 2 Full Install CD. (Latest version) Buy Now $109.00
TRS2UPGRADE  ACR Systems TRS2-UPGRADE TrendReader 2 Upgrade CD. (Requires a previous version of TrendReader Standard.) Discontinued
MFR ID: 01-0227
ACR Systems TRS2-W/LIC-101 TrendReader 2 Interface Pkg LIC-101 Software CD, Interface cable, 9-25 pin serial adaptor Discontinued
MFR ID: 01-0230 
ACR Systems TRS2-W/LIC-102 TrendReader 2 Interface Pkg LIC-102, Software on CD, USB for OWL data loggers. (cat. 01-0230)  Buy Now $189.00
OWLA60FL 0-250A 60Hz AC current clamp-on probe, Owl User-selectable Discontinued
OWLA65FL Frequency 50Hz


5, 25, 100, 250 Amps Discontinued
0-250A 50Hz AC current clamp-on probe, Owl User-selectable
OWLA70FL Frequency 60Hz


10, 50, 250, 500 Amps Discontinued
0-500A 60Hz AC current clamp-on probe, Owl User-selectable
OWLA75FL Frequency 50Hz


10, 50, 250, 500 Amps Discontinued
0-500A 50Hz AC current clamp-on probe, Owl User-selectable
Included Accessories
  • 1 - Users guide
Optional Accessories
Model Description Buy Online Price
18-0010 ACR Systems 9-25-ADP Converts 25 pin serial port to a 9 pin port. For use with ACR interface cables Discontinued
MFR ID: 01-0023
ACR Systems LIC-101 Lite-Link Logger-PC 9-pin PC serial port to logger interface cable Buy Now $99.00
MFR ID: 01-0232 
ACR Systems LIC-102 Interface Cable, LiteLink, USB Computer to Optical Data Logger . Compatible with Owl and PowerWatch loggers. (cat. 01-0232) Buy Now $99.00
USB100ACR ACR Systems USB-100 USB-Serial Port Cable Converts a USB port to a 9 pin serial port Discontinued
MFR ID: 01-0057
Size: 127 x 127 x 76mm . Buy Now $110.00
ACR Systems WB-100 NEMA 4X clear-faced weatherproof box for all ACR loggers
WBC100 ACR Systems WBC-100 Weatherproof Box Self-Sealing Connectors Additional self-sealing connectors for the Weatherproof Logger Box. (Catalog# 21-0003) Discontinued