Temperature mapping for refrigerated transport

Reefer and truck temperature mapping, in summer and in winter

We ship calibrated wireless sensors to your yard, your team places them with us on a video call, and your driver runs the normal routes. The readings reach us live, and each signed report comes 2 business days after its run.

  • No site visit
  • Real routes, real stops
  • Summer and winter
  • Report in 2 business days
Sample layout of a 53 ft reefer trailer mapped on its route. Glowing sensors sit at the front wall by the unit, in the middle and at the rear by the doors, at the floor and near the ceiling. The gateway rides in the cab and sends the readings live to Renergy, while the truck runs from the depot through its stops.
From $1,400for both seasons
12 to 16sensors, front wall to the doors
2 business daysto each signed report

How it works

From your trailer to a signed report, live

Calibrated sensors in a reefer trailer send their readings by radio to a gateway. The gateway sends them to Renergy live, while the study runs, and the report fills in as they arrive and is signed when the study ends.
Calibrated sensorsCertificates in the report
Own cellular linkNothing joins your network. No IT headache.
Signed by a certified engineerA Renergy engineer with career expertise in cold chain logistics

Packages

Every price, posted. Pick your unit.

A reefer trailer in section, with sensors at the front wall, the middle and the rear doors, at the floor and near the ceiling, and one outside.

Vehicle, summer and winter

A cube van (12 sensors) to a 53 ft trailer (16), mapped once in each season

12 to 16 sensors · 2 days each season

$1,400 to $1,850for both seasons

Book

US dollars, before tax, for a remote study. Shipping at the carrier's rate, no markup. On-site service and -80°C (-112°F) freezers are quoted separately.

Keep some of the sensors after the study, and you have continuous monitoring for $250 a sensor a year.

See TemperatureWise

Ordering

Four steps, no site visit

  1. Package cards with their prices. One is picked.

    Pick a package

    By unit size, with a date.

  2. A video call with two people, and the study protocol beside it, every line checked and approved.

    Approve the protocol

    On a call, before we ship.

  3. A fridge with sensors at its corners, and a phone on a video call confirming that spot 7 looks right.

    Place sensors on video

    We check each spot with you.

  4. The signed report with every section checked, and the sensor kit boxed up to go back.

    Get the signed report

    2 business days after the study.

Need more hands-on help? We also offer assisted installation, up to full white-glove service, quoted separately.

Talk with us

The report

The report fills in while the study runs

A sample temperature mapping report for a 53 ft reefer trailer, filling in as the study runs. Each step turns to done: protocol, sensor placement, calibration certificates, route run, doors open at each stop, warm and cold spots, where the load probe goes, mean kinetic temperature, raw data, review and signature. Beside them, a picture of each step as it happens, ending with the signed report and its seal.

The details

How a vehicle study runs

Sensors where the load is most exposed

The cargo space is mapped as a box: sensors at the front wall by the unit's discharge, along the middle, and at the rear by the doors, at floor level and near the ceiling, with one outside the vehicle as a reference. A cube van takes 12, a 53 ft trailer 16. The rear corners and the top of the load are where a box most often runs warm.

Real routes, with real stops

A parked truck tells you little. WHO guidance qualifies a refrigerated vehicle on the routes it actually drives, with the door openings at each stop, because every stop lets warm air in at the rear. The map shows how far the load moves at a stop and how long the unit takes to pull it back.

Summer and winter, because the unit works differently in each

In summer the unit fights heat through the roof and walls. In winter, a load held at 2°C to 8°C (36°F to 46°F) can freeze, and many units have to heat to stop it. One study in each season covers both, 2 days each, and the price covers both.

We ship the kit to your yard

We ship numbered, calibrated sensors with a placement map for your box. Your team places them while we check each spot on a video call, and the driver then runs the normal routes. A second kit ships before the other season.

A reefer parked as storage is mapped like a cold room

A trailer parked at the dock as extra cold storage is a room, not a route. It is mapped the way a cold room is mapped, over 3 days, with a door-open test.

The map sets your loading rules

The report shows where the probe that travels with every load should sit, how far product should stay from the doors and the front wall, and how long the unit needs to pre-cool. Those become your loading rules, with the map as the evidence behind them.

Who asks

Who asks for the map

United States, food

The FDA's sanitary transportation rule has the shipper set the operating temperature in writing, including pre-cooling, and lets the shipper or receiver ask the carrier to show it held it. A map shows the box can hold it from the front wall to the doors.

21 CFR 1.908

Drug carriers

WHO guidance qualifies refrigerated vehicles on their real routes, in both seasons.

WHO Supplement 11

Canada

Health Canada's GUI-0069 asks drug licence holders to map their temperature-controlled vehicles (section 5.2).

GUI-0069

Common questions

How do you temperature map a reefer trailer?

Sensors go from the front wall to the doors and from the floor to the ceiling, 16 in a 53 ft trailer, with one outside as a reference. The trailer then runs its normal routes, with its normal stops, for 2 days in summer and 2 days in winter.

Does a refrigerated vehicle need mapping in summer and winter?

Yes, where the seasons change how the unit works, and across most of the US and Canada they do. In summer the unit fights heat. In winter it can have to heat to keep a 2°C to 8°C (36°F to 46°F) load from freezing. WHO guidance qualifies vehicles in both seasons.

Is refrigerated vehicle temperature mapping required?

In the US, the FDA's sanitary transportation rule has the shipper specify the operating temperature, including pre-cooling, and lets the shipper or receiver ask the carrier to show it held it (21 CFR 1.908). The rule does not name mapping, but a map shows the box can hold that temperature end to end. In Canada, Health Canada's GUI-0069 asks drug licence holders to map temperature-controlled vehicles (section 5.2).

How many sensors does truck temperature mapping need?

12 in a cube van and 16 in a 53 ft trailer, plus one outside the vehicle as a reference.

How much does reefer temperature mapping cost?

$1,400 to $1,850 for both seasons, depending on the size of the vehicle, in US dollars, before tax and shipping. Each signed report comes 2 business days after its run ends.

How do the readings get to you from the road?

The gateway rides in the cab on its own cellular link, so the readings reach us during the run. There is nothing for your IT team to set up.

Can a reefer parked as storage be mapped?

Yes. A trailer parked at the dock as extra cold storage is mapped like a cold room, over 3 days, with a door-open test.

Can the sensors stay after the study?

Yes. Keep as many as you need and they become continuous monitoring with TemperatureWise, at $250 a sensor a year.

Book a study, or ask what yours would cost

Tell us the unit and the date.