Gas sensors¶

Support tier: B (Home Assistant supported)

What this is¶

Safety sensors that trigger clear alerts when something dangerous happens: smoke, carbon monoxide, propane/LPG, or other gases.

Why it’s useful in a van¶

Early warning while sleeping
Peace of mind when leaving pets inside (heat/CO risk)
Can trigger loud sirens + phone notifications

Extra hardware required¶

Depends on sensor type: - Zigbee smoke detectors / gas sensors (various brands) - Z‑Wave smoke/CO detectors - DIY gas sensors (MQ series) via ESPHome

Install / best next step¶

Prefer sensors that integrate locally (Zigbee/Z‑Wave)
For DIY gas sensors, use ESPHome and expose readings as sensors/binary sensors

Links¶

Home Assistant ZHA (Zigbee): https://www.home-assistant.io/integrations/zha/
ESPHome (DIY sensors): https://esphome.io/
ESPHome ADC sensor (for MQ-series analog sensors): https://esphome.io/components/sensor/adc.html