Field Kit puts every traverse calculation, pre-check and tolerance table in one offline app — designed with balancing engineers who work in gloves, in plant rooms, with no signal.
Field Kit is where the whole job comes together — the technician taking readings, the engineer witnessing them, and the office producing the certificate all work from the same numbers.
Traverse points, duct area, fan laws, K-factors and air changes — worked out in steppers and chips, not a keyboard, on any device.
Every reading is checked against the design value and tolerance you set, so a −21% branch gets flagged while you are still standing under it.
Sheets, photos and sign-offs export as CSV or PDF the moment you get signal — the witnessing pack writes itself.
One app, four jobs. Field Kit adapts to whoever is holding the phone without asking them to learn a new system.
Witness readings against design intent, log deviations with evidence, and issue the pack without re-typing a spreadsheet.
Proportional balancing with the index run tracked for you. Hole patterns, straight-length warnings and running totals in one screen.
See which systems are signed off and which are still open, per level, without ringing round the crew at five o'clock.
Receive a consistent, dated record of every system as handed over — the same format on every project, every time.
Enter duct size and Field Kit returns the point grid and distances from edge, with a warning when there isn't enough straight length upstream.
Each method carries the mistakes that ruin the result — bend distances, damper positions, instrument ranges — shown once, then out of the way.
Steppers and common-size chips cover about nine in ten entries, so the keyboard only appears for plant names and notes.
“We used to leave site with photos of a notepad and rebuild the sheet at home. Now the sheet is finished before we're off the ladder, and the discrepancies are already flagged.”
Everything is on the device: calculators, tables and your sheets. Plant rooms and basements behave exactly like the office.
A photo of the plate, a voice note and a location pin ride along with the reading, so nobody asks which duct this was.
CSV that drops into your existing workbook, and a dated PDF sheet per system for the witnessing file.
“I've been handed plenty of apps that assume you're sitting down with two clean hands. This is the first one written by somebody who has actually held a micromanometer.”
18 levels, 412 terminals balanced in Field Kit. The team closed out the air side two weeks ahead of the handover date.
Pressure cascades verified room by room, with every deviation photographed and flagged for the infection control review.
Air changes and defrost cycles logged across 14 chambers by a crew of three, all offline, all in one exported pack.
Whether you are a sole trader with a pitot tube or a national commissioning department, the app behaves the same way on every device.
Six tiles, always in the same place, 88px targets and no animation. A new starter is taking readings inside five minutes.
Every plan will include unlimited systems, sheets and exports, so your per-technician cost never moves with the size of the job.
Methods and tolerances follow recognised commissioning guidance, with the source named on every calculator screen.
“The straight-length warning stopped me traversing a duct I'd have wasted an hour on. That alone paid for it.”
“Big buttons, no spinner, no login screen in a basement. Would like imperial units next.”
“Our sheets used to come back in five different formats. Now they come back in one, dated and signed.”
Join the waitlist and we'll send you the first build for your platform, plus the method notes behind every calculator.
From single-plant service calls to multi-tower fit-outs, the same three screens carry the job.
Field Kit sits alongside our plant register and asset tagging tools — one record of what was installed, what it measured, and who signed it off.