Lack of a simple device to record on/off timestamps of a 24V signal over days for HVAC diagnostics.

No off-the-shelf recording device for 24V signal timestamps that is affordable, easy to connect, and provides clear time-series data for HVAC troubleshooting.

Opp. Score

Severity

3Medium

Willingness to Pay

implied

Added

Jun 25, 2026

App Concept

SignalSnap HVAC Logger

A compact, battery-powered device that connects to 24V HVAC control signals (W, Y, contactor) and automatically logs every on/off transition with precise timestamps. Data is accessed via a simple mobile app, eliminating guesswork and manual monitoring. Designed for technicians to leave in units for days and retrieve actionable data.

Key Features

Connect directly to 24V terminals via alligator clips
Automatic timestamp logging (precision ±1 second)
Battery life of 7+ days on a single charge
Wireless data transfer to smartphone app via Bluetooth
Export CSV for further analysis

Target Users: HVAC technicians and service companies who need to diagnose intermittent equipment faults by monitoring control signals over extended periods.

Revenue Model: Hardware device sold at $149 each, plus optional $9.99/mo cloud storage subscription for team data sharing and analytics.

Part of App Idea

CompHealth Diagnostic Assistant

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