Equipment and tool tracking for contractors: registers, tags, GPS and telematics

Ask most contractors where every machine and generator is right now and you will get a few phone calls and a best guess. That costs money in three ways: equipment rented while your own sits idle on another job, machines and tools that are lost or stolen, and service missed because nobody knew the hours. Tracking does not need to start with technology. It starts with a list you trust.

Start with the register

Every tracking method depends on a register of what you own, lease and rent. For each unit record:

• Identity: your asset number, make, model, year, and the manufacturer's serial number or PIN. Earthmoving machines carry a 17-character Product Identification Number under ISO 10261. Check the number against the plate on the machine itself, not just the invoice.
• Ownership: owned, leased or rented, and from whom. For rentals, the rate and the on-rent and off-rent dates.
• Where and who: the job it is on and the person responsible for it.
• Meter: engine hours or miles, and when it was last read.
• Service: the next service due by hours or date, and any inspection due.
• Paperwork: registration, insurance, and photos of the machine and its plates.

Accurate PIN and serial records are the single most useful thing you can give the police and your insurer after a theft. The National Equipment Register has repeatedly named missing or inaccurate ownership records as a main reason stolen equipment is not recovered.

Ways to know where things are

A phone's GPS is typically accurate to about 16 feet under open sky and worse near buildings and trees, so treat positions as approximate and keep the accuracy with each fix.

Most fleets end up mixed: telematics on newer heavy machines, GPS trackers on trailers and older or high-theft equipment, and QR tags with check-out on tools.

Telematics and the AEMP standard

Most newer machines from major manufacturers report through the manufacturer's telematics platform. The problem for a mixed fleet is having a portal per brand. The ISO 15143-3 standard (often called AEMP 2.0) defines a common way for manufacturers to deliver machine data to your own software, so one system can read every brand.

Data commonly available through it includes location, cumulative operating hours, fuel used, and on many machines idle hours and fault codes. Not every manufacturer provides every item, and access often needs a particular subscription level, so check what each brand gives you before relying on it.

Two uses pay off quickly:

• Hours for service and job costing, read automatically instead of by a person walking the yard.
• Idle time. Engine hours spent idling still count toward service intervals and warranty hours while doing no work. A simple idle policy, agreed with operators, is often the cheapest saving in the fleet.

Theft

The last publicly released annual theft report from the National Equipment Register and the National Insurance Crime Bureau, covering 2015, counted 11,493 equipment thefts reported to police, with only 22% recovered. Skid steers, backhoes, tractors and utility vehicles were among the most stolen, and newer machines were targeted most. NER estimated the annual cost at around $400 million, not counting tools, materials or delays. More recent NER snapshots show the same pattern, with job sites the most common place for theft over holiday weekends.

What helps, according to NER:

• keep PIN and serial records accurate and checked against the machine plates, and register equipment with NER;
• use ignition or hydraulic lockouts, or disconnect batteries, when machines are left;
• do not leave equipment loaded on trailers, and park machines so others cannot be dragged onto a trailer;
• light the site, use cameras, and check sites over long weekends;
• report a theft to police, your insurer and NER immediately; late discovery is a main reason for low recovery.

A GPS tracker or telematics alert for movement out of hours or outside a set area is what turns "it was gone on Monday" into "it left at 2 am Saturday".

Small tools

Small tools cause more frustration than theft of big machines: time spent looking, duplicate purchases, tools that never come back from a job. What works:

• tag tools worth tracking, not every screwdriver;
• give each job box or gang box a responsible person;
• check tools out to a person or job, and back in;
• count each job box monthly, and when a job closes.

Location data and your crews

If a tracker also shows where an operator or a truck driver is, some states require written notice to employees before you use it, and New Jersey requires written notice before tracking a vehicle an employee uses. Tell crews what is tracked and why, and get an acknowledgment. See Choosing a time tracking method for more on notice rules.

Rolling it out

1. Build the register from what you have: invoices, insurance schedules and a walk of the yard with a phone.
2. Start with the high-value and high-loss items.
3. Give every unit and job box a responsible person.
4. Add GPS or telematics to what moves between jobs or gets stolen.
5. Audit monthly for a quarter, then quarterly.

Sources

• National Equipment Register: annual theft reports
• NER/NICB 2015 Equipment Theft Report (PDF)
• NER Thanksgiving 2025 equipment theft snapshot (PDF)
• ISO 10261: Earth-moving machinery product identification numbering
• AEM: ISO 15143-3 telematics standard
• GPS.gov: GPS accuracy