
Additional automation, connectivity, and monitoring features for growers seeking greater control.
Budget
Est. $300 – $600
Products
6 included
Best for
Enthusiast growers
Every product links to its full Chill420 buyer's guide so you can compare options before deciding.


Color screen with VPD on display, mini trend graphs and Wi-Fi alerts — the sweet spot for serious hobby growers running a 4x4 or perpetual setup.

Tighter ±2% RH accuracy with audible high/low alarms and a dew-point readout — catches the slow humidity creep that ruins late flower.

Supports if/then rules with smart plugs and controllers so fans, dehumidifiers and humidifiers react automatically — fewer manual tent visits per day.

Larger backlit screen and tighter accuracy with dual-zone probes, so you can compare canopy vs floor or run two tents without buying a second meter.

Wi-Fi enabled monitor with cloud history and high/low push notifications so you know about a spike before it stresses the plants.