Run Your Whole Grow Room From One Smart HubThe VIVOSUN GrowHub Controller E42A is an all-in-one environmental controller that links your lights, extraction and circulation fans and climate gear together, then adjusts them automatically to hold your target temperature, humidity and VPD. Instead of nudging fan speeds and switching devices by hand through the day, you set your ranges once and let the hub keep the room on target as conditions drift.Constantly chasing temperature and humidity swings?Tent conditions move fast, and manually correcting fan speed, lighting and humidity every time they drift is easy to fall behind on, especially with several devices to juggle. The GrowHub reads its temperature and humidity sensor, calculates live VPD, and switches or ramps connected devices so the room self-corrects rather than relying on you to catch every fluctuation.Key Benefits Multi-device automation across grow lights, duct fans and circulation fans from a single interface Live VPD, temperature and humidity readout so you feed and steer climate by the numbers, not guesswork High device capacity: up to 12 AeroLights, 8 VS-series lights, 4 duct or clip-on fans and 1 temperature/humidity sensor Timer, cycle and schedule modes for day/night lighting and staged ventilation WiFi app control over 2.4GHz for monitoring and adjusting setpoints remotely Hands-off stability once veg and flower targets are dialled in How to Use Connect grow lights via the RJ11 (VS-series) or RJ45 (AeroLight) ports and fans to the Type-C ports Plug the temperature/humidity sensor into the 2.5mm AUX port and hang it at canopy height Power the hub through a connected AeroLight, AeroZesh or the optional 12V adaptor Set target temperature, humidity or VPD ranges, then let the hub switch and ramp devices to stay in range Update setpoints as plants move from veg into flower Technical Specifications Function: smart environmental controller for lights, fans and climate devices On-screen data: temperature, relative humidity and VPD Ports: 2x Type-C (fans/adaptor), 1x 2.5mm AUX (sensor), 1x RJ11 (VS lights), 1x RJ45 (AeroLight), reset Device capacity: 12 AeroLights, 8 VS-series lights, 4 duct/clip fans, 1 sensor Connectivity: WiFi 2.4GHz (2412-2484MHz), VIVOSUN app Operating temperature: 0°C to 50°C Power: supplied via connected devices or optional 12V adaptor