Product · Field & Infrastructure · Production
Per-tenant electricity sub-metering. One bill in, many bills out — accurate, printable, defensible. For landlords, market managers, guesthouses, and compounds where everyone shares a meter and nobody agrees on the split.
The problem
You receive one electricity bill for the whole property — a compound, a market, a guesthouse, a small commercial block. You have three tenants or thirty stalls, and every month the conversation is the same. Who left the air conditioner running? Why should the ground-floor unit subsidise the upstairs one? The answers — flat split, estimated by appliance count, charged by floor area — are guesses, not measurements.
Tenants who use less subsidise tenants who use more. High-consumption occupants have no incentive to change behaviour. The landlord or market manager spends hours every month resolving disputes that should never happen. Across a hundred-stall market, the misallocated electricity routinely exceeds the cost of installing the device.
The solution
Better than 1.5% accurate
The same class of measurement front-end you'd find in a commercial sub-meter ten times the price. Real power (watts), not apparent power (VA), so motors and compressors accumulate correctly.
30-minute setup
Three split-core current sensors clip around each tenant's supply wire. No circuit interruption, no rewiring, no licensed electrician for the sensor installation. The single mains-voltage connection is the only step that calls for an electrician.
No cloud. No subscription.
The device serves its own dashboard from its own built-in web server. Open it on any phone or tablet on the local Wi-Fi. No app to download. No vendor account. No monthly fee.
What you see
Built for the field
Unreliable mains. High ambient temperature. Limited technical support nearby. The device is built to recover itself — hardware watchdog, automatic restart, store-and-forward over a brief Wi-Fi loss, firmware updates over the air without a USB cable. Three-year deployments without a site visit are normal.
The standard unit handles three tenants. Hardware is designed for straightforward expansion to seven channels per unit. For larger deployments, multiple units coordinate over the same Wi-Fi to manage a single property — from two-unit compounds up to thousand-stall markets.
Procurement
One-off purchase per device. The hardware ships with three clip-on sensors, a Wi-Fi setup card, the installation guide, and a one-year hardware warranty. The dashboard, the printable bills, the CSV export, the event-stream output — all included, no recurring fee.
Volume pricing is available for compound, market, and guesthouse deployments. Optional managed installation and commissioning is available for customers who prefer end-to-end delivery; otherwise the installation is straightforward enough to be done by a competent person plus a qualified electrician for the single mains connection.
Patterns that use this product
Government · Pattern
How we designed offline-first integration for a Northern anchor institution: local-first state, queue-and-replay sync, idempotent integrations. The field worker never knows the link dropped, and the back-office systems reconcile cleanly when it returns.
10–14 weeks for the first deployment
Energy · Pattern
How we shipped independent voltage-presence witnessing at the customer end of a distribution network — so when the regulator audits a service-band claim six months after the fact, the evidence stands without depending on the distribution operator's own systems.
12–18 weeks per deployment phase
Stop guessing. Start billing accurately.
Tell us about the property. We'll come back with a unit count, a tariff configuration plan, and a managed-vs-self-install proposal.
Talk to an engineer