Meter Accuracy Test
:zap: Meter Flash Test – Check Your Energy Meter’s Accuracy
Meter Flash Test is a simple, powerful mobile app designed to help everyday users verify if their electricity meter is working accurately — using just a known appliance and your phone's camera.
Many modern electricity meters flash a red LED in proportion to energy used (e.g., 1000 flashes = 1 kWh). This app lets you track those flashes, compare with expected usage, and instantly see if your meter is charging you fairly.
If you don't have a flashing meter that's ok to as have a manual backup button to record rotation.
:wrench: Key Features:
:camera: Camera Flash Detection – Use your phone’s camera to monitor LED pulses from your meter
:gear: Built-In Calculator – Enter appliance wattage and test duration; app does the rest
:stopwatch: Smart Timer – Set exact test durations (1–15 mins)
:bar_chart: Live Accuracy Report – Compares expected vs. actual usage
:page_facing_up: PDF Report Generator – Save or share your test results
:closed_lock_with_key: Data Stored Locally – No cloud accounts required
:test_tube: How It Works:
Turn off all other appliances at the consumer unit
Switch on just one known device (e.g., a 2000W heater)
Start the camera test to count LED flashes
App calculates whether your meter reading is accurate
Get a percentage accuracy and a downloadable report
:busts_in_silhouette: Who It's For:
Meter Engineers
Homeowners questioning high bills
Renters on shared meters
Electricians doing quick accuracy checks
Anyone wanting peace of mind about their energy use
:iphone: No tools. No guesswork. Just your phone.
Let me know if you'd like a shorter version for app store listings or a tagline!