Metrit IoT

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About this app

Turn your spare or old Android phone into a powerful, remote IoT sensor station and monitor telemetry in real time from your daily phone.

Metrit breathes new life into your old devices, transforming them into wireless telemetry units equipped with real-time charts, smart security alerts, and end-to-end encryption (E2EE).

Whether you need a remote environment monitor, an anti-theft motion detector, a noise/sound alert, or a power outage tracker, Metrit gives you full control over your remote sensor data.

🚀 HOW IT WORKS IN 2 STEPS:
1. SENSOR UNIT (Old Phone): Install Metrit, select "Sensor Unit", and place the device where you want to collect data.
2. MONITOR UNIT (Current Phone): Install Metrit, select "Monitor Unit (Dashboard)", scan the pairing QR code in the Sensor Unit, and instantly watch live telemetry and receive alerts.

📊 COMPREHENSIVE SENSOR TELEMETRY:
• Motion & Vibration: 3-axis Accelerometer (X, Y, Z) and Tilt detection.
• Audio & Noise Levels: Real-time sound level measurement in decibels (dB).
• Light & Proximity: Ambient light lux sensor and screen proximity detection.
• Power & Battery: Battery charge percentage, voltage, and charging status.
• Environmental & Hardware: Barometric pressure (hPa), orientation (azimuth), and Wi-Fi signal strength.
• GPS Geofence: Monitor device position and get alerted if the unit moves beyond a designated perimeter.

🔔 REAL-TIME SMART ALERTS & NOTIFICATIONS:
Set custom thresholds and receive instant push notifications when:
• Movement or theft is detected (sudden acceleration or free fall).
• Loud noises or sound spikes occur (custom dB threshold).
• Power loss happens (unplugged charger alert).
• Wi-Fi connection is lost or signal drops.
• Darkness or proximity changes (box opened, phone flipped face-down).
• The sensor device leaves a defined GPS safe zone.

🔒 PRIVACY-FIRST & END-TO-END ENCRYPTED:
Your telemetry and readings belong to you. Metrit utilizes End-to-End Encryption (E2EE) using modern cryptographic keys exchanged directly via QR code. Your data can only be decrypted and viewed on your paired Monitor Unit.

💡 POPULAR USE CASES:
• Home & Property Security: Detect unauthorized entry or door opening using motion and proximity.
• Pet or Baby Sound Monitor: Get notified whenever sound levels exceed your preset threshold.
• Power Outage & Appliance Sentinel: Know immediately if a freezer, server, or home circuit loses power.
• Vehicle & Asset Tracker: Geofence and tilt alerts for parked cars, trailers, or storage spaces.
• Science & IoT Experiments: Record, visualize, and export interactive telemetry charts.

Download Metrit today and give your unused smartphone a smart new purpose!
Turn your old phone into a remote IoT sensor & telemetry monitor in real time.
Updated on
Sep 20, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • This app may collect these data types
    Financial info and Device or other IDs
  • Data isn’t encrypted
  • Data can’t be deleted

What’s new

What's new:

Stability: Fixed unexpected app crashes when reading multiple sensors simultaneously.

Graphs: Cloud optimization to prevent Monitor Unit graphs from appearing empty after prolonged use.

Alerts: Noise filter added to stop false "Free Fall" alerts on older devices.
Content rating
Everyone
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App support

About the developer
THIAGO BARCANTE TEIXEIRA
tbarsa@gmail.com
R. Manila, 90 - apto 704, bloco 2 Havaí BELO HORIZONTE - MG 30575-010 Brazil

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