Quick Answer: The Centi-Second Timer Module is an accessory that plugs into the front of the stopclock so that light gates can control the timing, with 2 inputs and 1/100 second resolution.
Last updated: October 2026
Key Features
Plugs into the front of the stopclock
Lets light gates control timing in two modes
2 inputs
Resolution of 1/100 second
Minimum time of 0.12 s in mode A
Powered by 2 x SR44 silver oxide button cells
Technical Specifications
Specification
Value
Product type
Centisecond timer module
Inputs
2
Resolution
1/100 second
Minimum time (mode A)
0.12 s
Battery
2 x SR44 silver oxide button cells
About This Product
This module extends what the stopclock can do by letting light gates start and stop the timing. A single gate can time how long a vehicle of known length interrupts the light beam, while two gates can be used to measure the time taken between them.
Frequently Asked Questions
Q1. What is the difference between mode A and mode B? In mode A the clock measures between successive changes on one input, with a minimum time of 0.12 s. In mode B it times between successive changes on either input, so the time between two light gates can be measured.
