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Trail Counter TTC-4420

Trail Counter TTC-4420 portable, battery operated pedestrian trail traffic count

Infrared Beam Volume Interval Counter

The Millennium Trail Counter is a portable, battery operated instrument for counting trail usage in remote areas. The original Trail Counter was designed, developed, and manufactured for years under an agreement with the Forest Service.

The unit can be left in the field for long periods and operates on four “D” cell flashlight batteries. It is constructed with a light-weight, watertight aluminum housing which is visually identical to the old counter.

The counter, consisting of a scanner and a reflector, is designed to bolt to the backside of a tree and is easy to conceal and install. The cast aluminum housing contains the electronics, optics, a six digit liquid crystal display, and a sonic device to aid in beam alignment and provision for the four “D” cell batteries in a lockable battery compartment.

In operation, the scanner is mounted on one side of the trail and the reflector on the other as shown in the sketch. The scanner housing has been designed to be as small as possible and is finished in dull camouflage; the infrared beam is not visible to the naked eye, and the counter makes no noise. Sturdy and rugged, the counter cannot be tripped by falling leaves, walking sticks swung by hikers or other small objects, and so that it will not register more than one count for long objects like horses, canoes and cycles.

The 65’ range obtained with the Trail Counter gives field personnel the opportunity to use natural camouflage. The TTC-4420 also comes a proprietary serial port for transferring data to our DataHog Field Data Collector.

The Millennium Trail Counter (TTC-4420) is specifically designed to be deployed along forested hiking trails. Ideally located where hikers will be funneled down into a single file in order to obtain an accurate count.

We do not recommend that this product be used to monitor or count other objects such as cars, trucks or other motorized vehicles.

Battery powered, portable, counter for use in remote areas
Rugged, watertight aluminum, developed at the U.S. Forest Service Equiptment Development Center
Scanner and reflector can be separated by up to 65 feet
Has a one hour time interval data recording ability and keeps grand total and up to 400 days of one hour interval records.
Centurion software can be used to yield count totals for 1-12 hours, one day, weekly or monthly.


SIZE 10" x 3" x 7" (25.5cm x 7.5cm x 18cm)
CASE Weathertight IP64 cast aluminum case with separated battery compartment
WEIGHT 8 Lbs ( 3.6kg)
POWER Four "D" alkaline batteries. Average life is 12-15 months.
COUNT Continuous volume grand total
MEMORY 10,000 - 1 hour intervals (over 400 days)
DETECTION RANGE 65ft (~20 meters)

TTC4420 Ships with three lag bolts, four reflectors and keychain with magnet.

Optional Equipment:

DataHog Portable Data Retriever

UPP serial cable

Centurion Parks Software