Home » Products » Hardware » Response Devices » Chronos
Request a Quote for Chronos
  • Overview
  • Features
  • Requirements
  • Pricing
  • Support
  • Gallery

Chronos® - A Multifunctional Response and Stimulus Device

Chronos is a powerful new USB-based response and stimulus device. Chronos allows the accurate collection and verification of tactile, auditory, visual, and analog responses along with the precise source of audio and generic analog output timing. Chronos features millisecond accuracy and consistent sound output latencies across machines. Chronos includes 16 digital inputs and 16 digital outputs, eliminating the need for a parallel port. The Photo Sensor accessory (included) can be used on CRT, LCD, and projection displays to detect stimulus onset events, refreshes, and measure rise and fall times. All responses collected are synchronous to the E-Prime® time domain. Multiple Chronos devices can be connected to a single PC (E-Prime 2.0 Professional or E-Prime 3.0). The Chronos back panel features Kensington lock support to secure the device (lock not included).


The Chronos graphical user interface allows for user-friendly implementation of the system's wide range of features. Chronos also introduces a large set of Task Events to facilitate the design of basic to complex experiments without the use of script (E-Prime 2.0 Professional or E-Prime 3.0).


Read our recent publication on reducing audio stimulus presentation latencies in Behavioral Research Methods.


The Chronos system consists of the following items:


  • Chronos console
  • Microphone
  • Photo Sensor
  • USB cable
  • Auxiliary I/O breakout cable assembly (2 digital inputs, 2 digital outputs, 1 power (5 V), 1 digital ground, 1 analog input, and 1 analog ground)
  • Demonstration experiment
  • Samples and Tutorials



Chronos (8" x 6-1/2" x 2-3/8")


Microphone (4" x 9-3/4")


Photo Sensor (1-3/4" x 1-3/8" x 3/4")



The following Chronos accessories are sold separately:


Chronos I/O Expander (3" x 4" x 2") 

  • Required for full capability of external analog and digital I/O
  • Push release wire terminal block for each I/O connection (16 digital inputs, 16 digital outputs, 1 pulse generator, digital powers and grounds, 3 analog inputs, 4 analog outputs, analog grounds)
  • A 40-pin IDC Header for carrying all digital I/O on a single ribbon cable
  • Pivoting removable wiring cover




Chronos Custom Expansion Kit (10" x 8.03" x 2.70")

  • Includes protoyping board, interface cables, mounting hardware, and enclosure
  • Requires I/O Expander
  • LEDs, switches, and dials are available to configure customization of up to 16 inputs and outputs




Chronos Foot Pedal (2-5/8" x 3-1/2" x .85")

  • Single or dual





This product is intended for research use only.

Chronos® Features

Chronos Response Features:

  • Keys
    • 5 buttons
    • 16 digital inputs*
    • Voice key
    • 2 foot pedals (accessories)
    • n-key rollover
    • Programmable debounce intervals
  • Audio Recording
    • Stream and save vocal responses
    • Start recording at object onset OR when speaking begins
  • Voice
    • Sound-activated response (voice key)
    • Condenser- or dynamic- microphone compatible
    • Configurable audio input gain
    • Configurable threshold settings for incoming audio responses and recording
    • Detect sound to silence (offset threshold/post-silence interval)
  • Analog Input*
    • 3 Analog Inputs (plus Photo Sensor) with configurable onset and offset thresholds


Chronos Stimulus Presentation Features:

  • LEDs
    • 5 LEDs with programmable RGB color values (>4,000 colors per LED)
    • Assign color values as response mapping verification, stimuli, or as feedback based on accuracy
  • Audio Output
    • Present auditory stimuli with accurate and precise sound output latencies of 1 ms (Mix Mode 1) or a fixed latency of 6 ms (Mix Mode 2) across different machine hardware
    • Configurable onset and offset output thresholds per channel
  • Digital Output*
    • 16 Digital Outputs
  • Analog Output*
    • 4 Analog Outputs
    • Generate sine, saw tooth, square, triangle, and custom waveforms
  • Pulse Generator*
    • Generate square waveforms of configurable frequency


*This feature requires separate purchase of the Chronos I/O Expander for full functionality

Chronos® Requirements

Chronos is compatible with PCs running:

  • Windows® 10
  • Windows® 8/8.1 64-bit
  • Windows® 7 SP1 32 and 64-bit


Chronos minimum machine configuration:

  • Pentium compatible Dual-Core or Multi-Core Processor 2GHz
  • 2GB RAM
  • USB 2.0 or 3.0 Port or powered hub port
  • E-Prime 2.0 SP1 Standard/Professional or E-Prime 3.0

Chronos® Pricing

Chronos orders can be placed in our shopping cart.



Please email us at sales@pstnet.com for more further information or request a quote.




Price (US Dollars)

Includes Microphone and Photo Sensor


Chronos Foot Pedal


Chronos Dual Foot Pedal $175.00
Chronos Expansion Bundle
Includes: Chronos Custom Expansion Kit (1), Chronos I/O Expander (1), Pushbutton Switch with Small Cap (10), Large Pushbutton Cap (10), Red LED (1), Green LED (1), Yellow LED (1), Slide Potentiometer (1), Rotary Potentiometer (1)
Chronos I/O Expander $250.00

Chronos Custom Expansion Kit
Requires Chronos I/O Expander. Includes protoyping board, interface cables, mounting hardware, and enclosure. LEDs, switches, sliders, and dials are sold separately to configure customization.

Custom Expansion Kit Accessories:
Red LED (1)
Green LED (1)
Yellow LED (1)
Switch Pushbutton with Small Cap
Large Pushbutton Cap
Slide Potentiometer (Slider)
Rotary Potentiometer (Dial)

Chronos Dynamic Microphone $28.00 
Chronos Headset with Microphone $22.00


*Quantity discount of 10% for orders of 5 or more.

All prices are provided in US funds. Prices do not include the cost of shipping and handling and are subject to change without notice.

Chronos® Support

 For technical support please visit our Product Service and Support Website.

Chronos® Gallery

Privacy | Terms of Use | Terms and Conditions | Legal Trademarks | Authorized Use | Quality Policy
Copyright 2017 Psychology Software Tools, Inc. All Rights Reserved
Email: Info@pstnet.com | Telephone: 412.449.0078 | Fax: 412.449.0079