Pressure warning system

Get warned before pressure becomes a ride problem

TubeWitch can show popup alerts, play tones, and trigger watch vibration. The real value is not just that alerts exist, but that the delay and reset behavior can be tuned so warnings feel useful instead of noisy.

TubeWitch can keep watch in the background, so you can leave your map or preferred screen up and still get popup and audible alerts.

Popup Alerts Audible Tones Watch Vibration

Choose a sensible starting point

In TubeWitch for SKS AIRSPY, set Front Low Target / Front High Target and Rear Low Target / Rear High Target in each Sensor Set in TubeWitch settings. These limits are set in TubeWitch, not in the manufacturer's mobile app. A value of 0 disables that individual limit; when both limits are set, High Target must be greater than Low Target. Choose units first, because changing units does not convert saved targets.

Exact numbers depend on pressure target, ambient temperature, and terrain, but the pattern below is a sensible starting point.

Road

Shorter delay, faster reset

Road pressure is usually more stable, but temperature swings can still move the baseline enough to matter. Shorter alert timing usually stays responsive without much noise.

Gravel

Moderate delay

Mixed surfaces create more transient pressure changes, while temperature still shifts the baseline pressure. Slightly longer timing helps avoid repetitive alerts.

MTB or rough terrain

Longest delay and reset

Rough terrain creates more momentary variation, and heat can stack on top of that during a ride. Calmer timing helps reserve alerts for changes that are real and sustained.

How riders usually tune alerts

Alert timing controls are designed to catch real pressure events while reducing repeat noise.

Alert delay

Choose how long pressure must stay high or low before a warning triggers.

Reset delay

Set how long pressure stays back in range before that alert state fully clears. Alarm Repeat adds repeats 90 seconds apart; 0 adds no repeats.

Signal style

Select popup, tone, color, and vibration behavior for each device type and riding context.

What alerting looks like on-device

Alert delay and reset settings — Delay and reset controls

Alarm tone and color settings — Tone and color settings

Status markers on screen

Marker	Meaning	Typical next action
L / H	Pressure is below or above the corresponding low/high target configured in the active TubeWitch Sensor Set	Adjust pressure or inspect for leak and temperature effects
?	Data is stale and TubeWitch is trying to reconnect	Wake the SKS AIRSPY sensors and confirm fresh broadcasts are received
X	Sensor timeout was reached during activity	Use touch to rescan or stop and resume activity to rescan

The SKS AIRSPY Settings page includes the full list of alert, timeout, display, and recording options available in TubeWitch for SKS AIRSPY.