Timer and Photogates

Item # P4-1450

Arbor Scientific



In Stock

Digital Timer & photogates. No computer required for this simple, intuitive data collection device. Complete set includes Timer, two photogates with cords, AC adaptor, user's manual, and hard carrying case.

Buy 6 and pay $251.00 each!
Get the time at each photogate and the time between each at the same time!

Our Digital Timer and Photogates uses an infra-red beam that, when broken, registers a meticulously accurate time measurement.  Students can choose from five timing modes:

  1. Stopwatch Mode:  Measures in seconds and is accurate to one hundredth (0.01) of a second from 0.01 to 59.99 seconds.  After one minute, the display switches to minutes: seconds.
  2. Interval Mode:  Uses one or two Photogates to electronically collect times from up to 3 different locations.  Photogate A, Photogate B, and/or the time between the two allowing for experiments on speed or acceleration.
  3. Frequency Mode:  Measures the frequency of anything that breaks the light beams in the Photogates regularly, or the frequency of signals applied to the inputs.
  4. Period Mode:  Measures the period of repetitive motions to 0.0001 seconds accuracy
  5. Count Mode:  Counts whenever anything breaks the light beam, or sends a signal.  There are two independent counters; each can each count up to 19,999.

Photogates are equipped with handy thumbscrews that are easy to connect and reposition.

    Products being sold are not toys. They are for Educational / Labratory use only. They are not for use by children 12 and under.

    Other Resources

    What’s Included

    1Timer with rechargeable battery
    2Photogates with Firewire Data Cords 
    2Photogate Mounting Brackets w/ hardware 
    1AC Adapter 
    1Hard Carrying Case 
    1Ring Stand and Base 
    1Photogate Mounting Rod 
    Technical Specifications
    Time Reference
    • 6.144 MHz quartz crystal
    • 0.65 microsecond internal resolution
    • 0.0001 second display resolution
    Input Voltage9 V DC/500 mA Minimum (Center Tip positive).
    Sensor InputTwo TTL falling edge triggered inputs using 1394 connectors.

    Gate A, Gate B, and Interval A-to-B photogate timing with:

    • 0.0001 s resolution from 0.0000 to 99.9999 s
    • 0.001 s resolution from 100.000 to 999.999 s
    • 0.01 s resolution from 1000.00 to 9999.99 s
    • 0.1 s resolution from 10000.0 to 99999.9 s

    Dual channel plus frequency differences (A, B, A-B, B-A) with:

    • 0.0001 Hz resolution from 0.0000 to 99.9999 Hz
    • 0.001 Hz resolution from 100.000 to 999.999 Hz
    • 0.01 Hz resolution from 1000.00 to 9999.99 Hz
    • 0.1 Hz resolution from 10000.0 to 99999.9 Hz

    Dual channel (A or B) period measurement with:

    • 0.0001 s resolution from 0.0000 to 99.9999 s
    • 0.001 s resolution from 100.000 to 999.999 s
    • 0.01 s resolution from 1000.00 to 9999.99 s
    • 0.1 s resolution from 10000.0 to 99999.9 s
    • 0.01 s resolution to 999999.99 s
    CountDual channel (A or B) counters to 999999 each channel
    FCC ComplianceThis equipment has been tested and found to comply with the limits for a class A digital device, pursuant to part 15 of the FCC rules. These rules are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. The equipment generates and uses radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications.
    Working Time (Battery)>40 hours
    Power Consumption0.015 W without photogate, 0.25 W with two photogates


    Item # 66-4220


    Buy 12 and pay $16.90 each!

    Item # P6-7502