Ideal for easy counting and recording of switch contact closures and voltage pulses.
SKU: 01-0130
$1,262.00 USD

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Ideal for easy counting and recording of switch contact closures and voltage pulses. 

Typical applications include:

  • Monitoring fluid and air flow
  • Shaft RPM
  • Wind speed

Key Features:

  • Equipped with two external inputs for externally generated pulse signals and dry contact switch contact closures
  • Network up to 10 various SRP data loggers
  • Can be calibrated to NIST standards.


Accuracy +/- 1 pulse/sample period
Input Impedance greater than 1.0 M ohm for Vin less than 5V
greater than 4.0 K ohm for Vin less than 5V
Input Voltage Low = 0 to 0.5 volts DC
High = 4.5 to 24 volts DC
Maximum Frequency 100 KHz
Min. Pulse Width 50% Duty Cycle:
Slow input: 2 milliseconds
Fast input: 10 microseconds
Range 4095 pulses/sample period
Switch Inputs Input Type: Uncommitted “dry” contacts (relay or switch)
Excitation: 5 microamps contact current
3.6 volts open circuit
Contacts: Sealed gold-plated recommended
Warranty 3 – years


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

Weatherproof Box


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.

SmartReader Plus 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
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