Status LED behavior

Phase	LED pattern	Status
Power on	Solid blue	Device is starting
Startup	Fast blink x2	Initializing SIM or connecting to cellular network
Startup	Fast blink x3	Connected; entering normal phase
Startup	Fast blink x4	Data successfully sent; entering normal phase
Error	Slow blink x5	Network connection failure
Error	Slow blink x2	Sensor initialization failure
Error	Slow blink x3	Data transmission failure
Normal	LED off	All OK; no issues

If the LED shows a network connection failure, check that the installation location has 4G coverage. The monitor will automatically retry.

Reporting Interval

The Open Air Max collects sensor readings and transmits them periodically to AirGradient servers.

By default, the Open Air Max measures every three minutes and sends data to the dashboard every nine minutes. This means dashboard data may have a delay of up to nine minutes, but readings are still available in three-minute resolution.

If transmission fails, the device buffers the data and attempts to send it again later.

Power Modes

Starting from firmware version 0.7.0, the Open Air Max adjusts its measurement and transmission intervals based on power source and battery level.

Scenario	Power source	Connectivity	Measure interval	Transmit interval	Config/OTA check
Standard mode	USB or >10V	Cellular	3 mins	9 mins	Every 90 mins
Standard mode	USB or >10V	WiFi	3 mins	3 mins	Every 90 mins
Power saving	Battery 9.5-9.9V	Cellular	30 mins	90 mins	Daily
Deep power saving	Battery <9.5V	Cellular	60 mins	180 mins	Daily

Why Dashboard Data May De Delayed

On cellular, the monitor usually sends batches every nine minutes. This is normal and helps reduce data and power usage.

If the monitor has just powered on, allow at least 15 minutes before troubleshooting missing dashboard data.