THC Environmental Control Center

Current conditions

Air temperature (°C)

RH (%)

Leaf temperature (°C)

PPFD (µmol·m⁻²·s⁻¹)

Photoperiod (hours)

Root-zone temperature (°C)

CO₂ (ppm, optional)

Period

Zone / room

User guardrails

VPD low alert (kPa)

VPD high alert (kPa)

RH high alert (%)

Dew-point margin alert (°C)

These are your guardrails. The tool does not present them as universal crop targets. Save them with the room/zone context and adjust from documented crop response.

—Leaf VPD kPa

—Dew point °C

—DLI mol·m⁻²·day⁻¹

—Leaf-air Δ °C

Environment alert delivery & history

The alert board evaluates your guardrails. This section records only new transitions into an active sustained alert. Browser notifications are optional local notifications while the page/browser is allowed to notify; they are not SMS, cloud push, or background monitoring after the browser stops running.

0active transitions saved

—latest alert

—notification permission

Time	Device	Zone	Rule	Direction	Value

No alert transitions saved.

History filter

Zone / room

All saved zones.

Environment history trend

Trend metric

Save at least two readings to build a trend. VPD view overlays the guardrails stored with each saved reading.

Day / night summary

Period	Readings	Temp avg	RH avg	VPD avg

Latest history

Time	Zone	Period	Temp	RH	VPD	Alerts

Systems view

The same VPD can occur under different temperature/RH combinations, and the same PPFD can produce different daily exposure under different photoperiods. Keep the complete state together.

Benchmark direction

Environment Center now follows the proven dashboard pattern used by professional monitoring platforms: zone context, current metrics, user guardrails, persistent readings, and separate day/night summaries rather than a single disposable calculation.