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hum

Price

Two devices. One price each.

Nothing to configure and nothing to add later. Both devices measure the same way, keep the same signed record, and work with no account and no monthly fee. The difference is how much of the house they can name on their own.

Prices are set. The hardware is still in development, so nothing is charged today; you can reserve one and cancel it with one click.

hum lite

For a house that wants the number and the record.

$349

One payment. No subscription.

Reserve a hum lite
  • Wall display, 4.3 inch, always on
  • One clamp for a single-phase supply, three for three-phase
  • Real power, voltage and frequency, thousands of times a second
  • Signed hourly record, kept on the device
  • Battery inside: a power cut is data, not a gap
  • Appliance names you give it, learned on the device
  • Phone app over your own Wi-Fi, no account

Identifies the large, distinct loads: heating, the water heater, an oven, a washing machine. Smaller overlapping loads stay in "Not identified", and it says so.

More of the house

hum pro

For a house with many machines running at once.

$599

One payment. No subscription.

Reserve a hum pro
  • Everything in hum lite
  • Neural processor on the board, so the model runs in real time
  • Separates loads that start at the same time
  • Health tracking: a motor that draws more each month
  • Longer record on the device

Same honesty as hum lite. When two appliances fit a start equally well, it offers both and keeps the line marked as an estimate.

Both prices include the clamp, the power supply and the wall bracket. Three-phase houses need two extra clamps, which we sell at cost.

What you are not paying for.

No subscription

The device keeps working the same on the day the company stops answering the phone. Nothing it does depends on a server of ours.

No cloud storage

Readings stay on the device. The phone app talks to it over your own Wi-Fi. There is nothing to leak because there is nothing to keep.

No upsell

One price, one box. The record and its signatures are in both devices; evidence is not a premium feature.

Not built yet.

hum is in development at Veltrix, so nothing ships today and nothing is charged. You can reserve one, which tells us what to build and holds your place, or just leave an address and we will write once when there is something real to show.

Reserve one Read the questions first

One email. Not a newsletter. What we keep