{"product_id":"vivosun-growhub-e42a-plus-grow-controller","title":"GrowHub E42A+ Controller by VIVOSUN — Wi-Fi Grow Tent Controller with Inside \u0026 Outside Sensing and VPD Automation","description":"\u003cdiv style=\"font-family: 'Helvetica Neue', Arial, sans-serif; max-width: 860px; margin: 0 auto; color: #1a1a1a;\"\u003e\n\n\u003cp style=\"font-size: 1.05rem; line-height: 1.7; margin-bottom: 1.5rem;\"\u003eRunning a light, a clip fan and an exhaust fan off three separate timers and dials works until the weather turns and the tent swings hard between day and night. The GrowHub E42A+ by VIVOSUN pulls all of it onto one 4.3\" colour screen: it reads temperature, humidity and VPD inside the tent and out, dims and schedules your light, and ramps your inline fan automatically when conditions drift. It suits growers running VIVOSUN's Smart Grow System (AeroLight, LumaRay, AeroWave, AeroZesh), plus anyone with a compatible Flexstar, Spider Farmer or Mars Hydro light or an AC Infinity Cloudline fan. Wi-Fi and the VIVOSUN app add remote control, grow recipes and a year of history, but the controller runs fine without them. The honest limit: it controls gear over low-voltage cables, not power points, so it will not switch a plug-in heater or humidifier on its own.\u003c\/p\u003e\n\n\u003cdiv style=\"background: #fff3e0; border-left: 4px solid #e65100; padding: 1rem 1.3rem; border-radius: 6px; margin-bottom: 2rem; font-size: 0.93rem; line-height: 1.6;\"\u003e\n\u003cstrong style=\"color: #e65100;\"\u003ePre-order now, ships from 25 October 2026.\u003c\/strong\u003e Order today to lock in your unit from this shipment.\u003c\/div\u003e\n\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1rem; margin-bottom: 2rem;\"\u003e\n\u003cdiv style=\"background: #f4f9f4; border-left: 4px solid #2e5e2e; padding: 1rem 1.2rem; border-radius: 6px;\"\u003e\n\u003cstrong style=\"display: block; margin-bottom: 0.3rem; color: #2e5e2e;\"\u003eReads inside and outside air\u003c\/strong\u003e\u003cspan style=\"font-size: 0.9rem; color: #444;\"\u003eDual temp and humidity sensors track the tent and the room. Advanced Auto mode in the app stops your exhaust ramping up when the air outside is worse than the air inside.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f4f9f4; border-left: 4px solid #2e5e2e; padding: 1rem 1.2rem; border-radius: 6px;\"\u003e\n\u003cstrong style=\"display: block; margin-bottom: 0.3rem; color: #2e5e2e;\"\u003eExhaust that responds to VPD\u003c\/strong\u003e\u003cspan style=\"font-size: 0.9rem; color: #444;\"\u003eSet temperature, humidity or VPD triggers and the inline fan idles at standby speed, then speeds up the further conditions drift past your limits.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f4f9f4; border-left: 4px solid #2e5e2e; padding: 1rem 1.2rem; border-radius: 6px;\"\u003e\n\u003cstrong style=\"display: block; margin-bottom: 0.3rem; color: #2e5e2e;\"\u003eFive ports plus a light port\u003c\/strong\u003e\u003cspan style=\"font-size: 0.9rem; color: #444;\"\u003ePorts A to E take AeroWave clip fans, AeroZesh inline fans or the power adapter. A dedicated light port runs AeroLight, LumaLight and LumaRay via the included converter.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f4f9f4; border-left: 4px solid #2e5e2e; padding: 1rem 1.2rem; border-radius: 6px;\"\u003e\n\u003cstrong style=\"display: block; margin-bottom: 0.3rem; color: #2e5e2e;\"\u003eNot locked to VIVOSUN lights\u003c\/strong\u003e\u003cspan style=\"font-size: 0.9rem; color: #444;\"\u003eDims listed Flexstar, Spider Farmer, Mars Hydro, Medic Grow and other compatible lights over RJ11, and drives AC Infinity Cloudline fans with a Type-C connector.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f4f9f4; border-left: 4px solid #2e5e2e; padding: 1rem 1.2rem; border-radius: 6px;\"\u003e\n\u003cstrong style=\"display: block; margin-bottom: 0.3rem; color: #2e5e2e;\"\u003eKeeps running when the Wi-Fi drops\u003c\/strong\u003e\u003cspan style=\"font-size: 0.9rem; color: #444;\"\u003eSettings and recipes live on the controller, so it carries on offline and picks up where it left off after a power cut.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f4f9f4; border-left: 4px solid #2e5e2e; padding: 1rem 1.2rem; border-radius: 6px;\"\u003e\n\u003cstrong style=\"display: block; margin-bottom: 0.3rem; color: #2e5e2e;\"\u003eReady for CO₂ and light sensing\u003c\/strong\u003e\u003cspan style=\"font-size: 0.9rem; color: #444;\"\u003eVIVOSUN's 4-in-1 sensor (temperature, humidity, CO₂ and light) is built for the E42A+. It is not compatible with the original E42 or E42A.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdetails style=\"margin-bottom: 2rem;\"\u003e\n\u003csummary style=\"cursor: pointer; border-bottom: 2px solid #2e5e2e; padding-bottom: 0.4rem; margin-bottom: 1rem;\"\u003e\u003ch2 style=\"font-size: 1.1rem; font-weight: 700; margin: 0; display: inline;\"\u003eSpecifications\u003c\/h2\u003e\u003c\/summary\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: 1fr 1fr; gap: 0.5rem 2rem; font-size: 0.95rem;\"\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e VIVOSUN\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e GrowHub E42A+ (GH-E42AP)\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eDisplay:\u003c\/strong\u003e 4.3\" colour screen, 6 touch buttons\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eRated power:\u003c\/strong\u003e 3W\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eOperating voltage:\u003c\/strong\u003e 12V DC\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003ePower:\u003c\/strong\u003e Via a connected AeroLight, AeroZesh or AeroWave cable, or a 12V adapter\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eWi-Fi:\u003c\/strong\u003e 2.4GHz only (no 5GHz)\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eDevice ports:\u003c\/strong\u003e 5 universal Type-C (A–E) plus 1 light port\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eSensor port:\u003c\/strong\u003e 2.5mm AUX\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eSensors:\u003c\/strong\u003e Inside and outside temperature and humidity, live VPD\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eProbe cable:\u003c\/strong\u003e 3m (9.84ft)\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 14.1 × 8.1 × 2cm\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eOperating temperature:\u003c\/strong\u003e 0–60°C\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eOperating humidity:\u003c\/strong\u003e 35–85% RH\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eLight control:\u003c\/strong\u003e 0–100% dimming, Seedling \/ Veg \/ Flower spectrum, cycle schedules with sunrise and sunset\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eFan control:\u003c\/strong\u003e Speed 1–10; Manual, Cycle and Auto (temp, RH or VPD triggers)\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Magnet onto the included iron plate, or screws (74mm centres)\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eApp:\u003c\/strong\u003e VIVOSUN app (iOS and Android), up to 1 year of history, alerts\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eIn the box:\u003c\/strong\u003e Controller, 3m temp\/humidity probe, iron plate, Type-C to RJ11 \u0026amp; RJ45 converter, expansion screws, wire and cable ties\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2 years (manufacturer)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails style=\"margin-bottom: 2rem;\"\u003e\n\u003csummary style=\"cursor: pointer; border-bottom: 2px solid #2e5e2e; padding-bottom: 0.4rem; margin-bottom: 1rem;\"\u003e\u003ch2 style=\"font-size: 1.1rem; font-weight: 700; margin: 0; display: inline;\"\u003eGrower's Tip\u003c\/h2\u003e\u003c\/summary\u003e\n\u003cdiv style=\"background: #fff8e1; border-left: 4px solid #f9a825; padding: 1rem 1.3rem; border-radius: 6px; margin-bottom: 0;\"\u003e\n\u003cul style=\"margin: 0 0 0 1.2rem; padding: 0; font-size: 0.93rem; line-height: 1.7;\"\u003e\n\u003cli\u003eMount the controller on the outside of the tent. The iron plate sticks to the inside wall and the magnet holds the controller through the fabric, so the screen never lights your canopy.\u003c\/li\u003e\n\u003cli\u003eIf the controller does sit anywhere the plants can see it, set Screen-Off Time to 30 seconds and drop the brightness. Any lit screen in the grow space is a light leak during the dark period.\u003c\/li\u003e\n\u003cli\u003eHang the probe at canopy height, out of direct light and away from the fan's airstream. A probe in the hot spot under the light makes Auto mode chase the wrong number.\u003c\/li\u003e\n\u003cli\u003eSet a standby speed rather than OFF for the exhaust. A slow constant draw keeps the tent under negative pressure, and Auto only needs to ramp up from there.\u003c\/li\u003e\n\u003cli\u003eTurn on Advanced Auto in the app if your room swings hot or humid. It reads the outside sensor and stops the fan pulling in air that would make things worse.\u003c\/li\u003e\n\u003cli\u003eThe exhaust alone can only move VPD by swapping air with the room. For real VPD control, add a heater, humidifier or dehumidifier alongside it.\u003c\/li\u003e\n\u003cli\u003ePair it on your 2.4GHz network. Most routers broadcast both bands under similar names; pick the 2.4GHz one and keep Bluetooth on your phone during setup.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails style=\"margin-bottom: 2rem;\"\u003e\n\u003csummary style=\"cursor: pointer; border-bottom: 2px solid #2e5e2e; padding-bottom: 0.4rem; margin-bottom: 1rem;\"\u003e\u003ch2 style=\"font-size: 1.1rem; font-weight: 700; margin: 0; display: inline;\"\u003eHow To Set It Up\u003c\/h2\u003e\u003c\/summary\u003e\n\u003cdiv\u003e\n\u003cdiv style=\"display: flex; align-items: flex-start; gap: 14px; padding: 12px 0; border-bottom: 1px solid #edf3ed; font-size: 0.93rem; line-height: 1.6;\"\u003e\n\u003cspan style=\"background: #2e5e2e; color: #fff; font-weight: 700; font-size: 0.85rem; min-width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; margin-top: 1px;\"\u003e1\u003c\/span\u003e\u003cspan\u003ePeel the backing off the iron plate and stick it to the inside wall of the tent. Place the controller on the outside of the tent over the plate, or screw it to a wall using the slotted holes.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; align-items: flex-start; gap: 14px; padding: 12px 0; border-bottom: 1px solid #edf3ed; font-size: 0.93rem; line-height: 1.6;\"\u003e\n\u003cspan style=\"background: #2e5e2e; color: #fff; font-weight: 700; font-size: 0.85rem; min-width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; margin-top: 1px;\"\u003e2\u003c\/span\u003e\u003cspan\u003ePlug the probe into the 2.5mm sensor port and hang it at canopy height. Connect your light to the light port through the converter (RJ45 for AeroLight, RJ11 for VS-series and compatible third-party lights), and your fans to ports A–E.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; align-items: flex-start; gap: 14px; padding: 12px 0; border-bottom: 1px solid #edf3ed; font-size: 0.93rem; line-height: 1.6;\"\u003e\n\u003cspan style=\"background: #2e5e2e; color: #fff; font-weight: 700; font-size: 0.85rem; min-width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; margin-top: 1px;\"\u003e3\u003c\/span\u003e\u003cspan\u003ePower up any connected AeroLight, AeroZesh or AeroWave and the controller powers from its cable. If you are only running a VS-series or third-party light, you need a 12V power adapter on one of the ports.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; align-items: flex-start; gap: 14px; padding: 12px 0; border-bottom: 1px solid #edf3ed; font-size: 0.93rem; line-height: 1.6;\"\u003e\n\u003cspan style=\"background: #2e5e2e; color: #fff; font-weight: 700; font-size: 0.85rem; min-width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; margin-top: 1px;\"\u003e4\u003c\/span\u003e\u003cspan\u003eSet the time, then assign a device type to every port you have used (Power Adapter, AeroWave, AeroWave Gen2 or AeroZesh). Ports given the same type follow the same logic.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; align-items: flex-start; gap: 14px; padding: 12px 0; border-bottom: 1px solid #edf3ed; font-size: 0.93rem; line-height: 1.6;\"\u003e\n\u003cspan style=\"background: #2e5e2e; color: #fff; font-weight: 700; font-size: 0.85rem; min-width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; margin-top: 1px;\"\u003e5\u003c\/span\u003e\u003cspan\u003eDownload the VIVOSUN app, tap +, and add the GrowHub E42A+ on your 2.4GHz Wi-Fi. The clock syncs automatically once it is online.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; align-items: flex-start; gap: 14px; padding: 12px 0; font-size: 0.93rem; line-height: 1.6;\"\u003e\n\u003cspan style=\"background: #2e5e2e; color: #fff; font-weight: 700; font-size: 0.85rem; min-width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; margin-top: 1px;\"\u003e6\u003c\/span\u003e\u003cspan\u003eSet your light schedule and spectrum, then put the inline fan in Auto with a max speed, a standby speed and your temperature, humidity or VPD triggers. Check the readings over a full day and night and fine-tune.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails style=\"margin-bottom: 2rem;\"\u003e\n\u003csummary style=\"cursor: pointer; border-bottom: 2px solid #2e5e2e; padding-bottom: 0.4rem; margin-bottom: 1rem;\"\u003e\u003ch2 style=\"font-size: 1.1rem; font-weight: 700; margin: 0; display: inline;\"\u003ePairs Well With\u003c\/h2\u003e\u003c\/summary\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1rem;\"\u003e\n\u003ca href=\"\/products\/aerowave-by-vivosun\" style=\"text-decoration: none; color: inherit; background: #f4f9f4; border: 1px solid #c8dfc8; padding: 1rem; border-radius: 6px; display: block;\"\u003e\u003cstrong style=\"color: #2e5e2e; display: block; margin-bottom: 0.3rem;\"\u003eAeroWave E6 \/ E9 Clip Fan\u003c\/strong\u003e\u003cp style=\"font-size: 0.85rem; margin: 0;\"\u003ePlugs straight into ports A–E for speed, oscillation and Natural Wind control, and powers the controller.\u003c\/p\u003e\u003c\/a\u003e\n\u003ca href=\"\/products\/vivosun-aeroflux-smart-grow-tent-heater-700w\" style=\"text-decoration: none; color: inherit; background: #f4f9f4; border: 1px solid #c8dfc8; padding: 1rem; border-radius: 6px; display: block;\"\u003e\u003cstrong style=\"color: #2e5e2e; display: block; margin-bottom: 0.3rem;\"\u003eAeroFlux 700W Heater\u003c\/strong\u003e\u003cp style=\"font-size: 0.85rem; margin: 0;\"\u003eHolds night temperatures up when the exhaust alone cannot, and runs in the same VIVOSUN app.\u003c\/p\u003e\u003c\/a\u003e\n\u003ca href=\"\/products\/aerostream-h19-humidifier-by-vivosun\" style=\"text-decoration: none; color: inherit; background: #f4f9f4; border: 1px solid #c8dfc8; padding: 1rem; border-radius: 6px; display: block;\"\u003e\u003cstrong style=\"color: #2e5e2e; display: block; margin-bottom: 0.3rem;\"\u003eAeroStream H19 Humidifier\u003c\/strong\u003e\u003cp style=\"font-size: 0.85rem; margin: 0;\"\u003eAdds moisture when VPD climbs too high, so you are not relying on the fan to fix dry air.\u003c\/p\u003e\u003c\/a\u003e\n\u003ca href=\"\/products\/aerodrain-d12-smart-dehumidifier-by-vivosun\" style=\"text-decoration: none; color: inherit; background: #f4f9f4; border: 1px solid #c8dfc8; padding: 1rem; border-radius: 6px; display: block;\"\u003e\u003cstrong style=\"color: #2e5e2e; display: block; margin-bottom: 0.3rem;\"\u003eAeroDrain D12 Dehumidifier\u003c\/strong\u003e\u003cp style=\"font-size: 0.85rem; margin: 0;\"\u003ePulls up to 12L a day out of a humid tent when outside air is too damp to exhaust with.\u003c\/p\u003e\u003c\/a\u003e\n\u003ca href=\"\/collections\/environment-controllers\" style=\"text-decoration: none; color: inherit; background: #f4f9f4; border: 1px solid #c8dfc8; padding: 1rem; border-radius: 6px; display: block;\"\u003e\u003cstrong style=\"color: #2e5e2e; display: block; margin-bottom: 0.3rem;\"\u003eEnvironment Controllers\u003c\/strong\u003e\u003cp style=\"font-size: 0.85rem; margin: 0;\"\u003eEvery grow room controller we stock, from single-fan controllers to full climate systems.\u003c\/p\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails style=\"margin-bottom: 2rem;\"\u003e\n\u003csummary style=\"cursor: pointer; border-bottom: 2px solid #2e5e2e; padding-bottom: 0.4rem; margin-bottom: 1rem;\"\u003e\u003ch2 style=\"font-size: 1.1rem; font-weight: 700; margin: 0; display: inline;\"\u003eFrequently Asked Questions\u003c\/h2\u003e\u003c\/summary\u003e\n\u003cdetails style=\"margin-bottom: 0.8rem; border: 1px solid #e0e0e0; border-radius: 6px; padding: 0.8rem 1rem;\"\u003e\u003csummary style=\"font-weight: 600; cursor: pointer;\"\u003eDoes the GrowHub E42A+ work without Wi-Fi?\u003c\/summary\u003e\u003cp style=\"margin: 0.6rem 0 0; font-size: 0.93rem; line-height: 1.6;\"\u003eYes. Lights, clip fans and inline fans can all be set and run from the controller's own screen. Wi-Fi and the VIVOSUN app add remote control, grow recipes, history and alerts, and if the connection drops it keeps running your last settings.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 0.8rem; border: 1px solid #e0e0e0; border-radius: 6px; padding: 0.8rem 1rem;\"\u003e\u003csummary style=\"font-weight: 600; cursor: pointer;\"\u003eDoes it have power outlets for a heater or humidifier?\u003c\/summary\u003e\u003cp style=\"margin: 0.6rem 0 0; font-size: 0.93rem; line-height: 1.6;\"\u003eNo. The E42A+ controls devices over low-voltage Type-C and RJ cables, not 240V power points. VIVOSUN's heaters, humidifiers and dehumidifiers run alongside it in the VIVOSUN app.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 0.8rem; border: 1px solid #e0e0e0; border-radius: 6px; padding: 0.8rem 1rem;\"\u003e\u003csummary style=\"font-weight: 600; cursor: pointer;\"\u003eWill it run my Spider Farmer, Mars Hydro or Flexstar light?\u003c\/summary\u003e\u003cp style=\"margin: 0.6rem 0 0; font-size: 0.93rem; line-height: 1.6;\"\u003eYes, if your series is on VIVOSUN's compatibility list. Spider Farmer G, SE and SF, Mars Hydro TS, FC, FC-E and SP, and Flexstar PRO, SE, MATRIX, TRIFOLD and NOVA connect over RJ11 through the included converter. Some lights limit how many units can be daisy-chained or how far they dim, so check with the light's maker if you run several.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 0.8rem; border: 1px solid #e0e0e0; border-radius: 6px; padding: 0.8rem 1rem;\"\u003e\u003csummary style=\"font-weight: 600; cursor: pointer;\"\u003eDoes it work with AC Infinity inline fans?\u003c\/summary\u003e\u003cp style=\"margin: 0.6rem 0 0; font-size: 0.93rem; line-height: 1.6;\"\u003eYes. Cloudline A, B, S and T series fans with a Type-C connector plug into ports A or B directly. Older Cloudline fans with a Molex connector need a fan adaptor.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 0.8rem; border: 1px solid #e0e0e0; border-radius: 6px; padding: 0.8rem 1rem;\"\u003e\u003csummary style=\"font-weight: 600; cursor: pointer;\"\u003eWill it connect to 5GHz Wi-Fi?\u003c\/summary\u003e\u003cp style=\"margin: 0.6rem 0 0; font-size: 0.93rem; line-height: 1.6;\"\u003eNo. It connects to 2.4GHz networks only. Most home routers broadcast both, so choose the 2.4GHz network when pairing.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 0.8rem; border: 1px solid #e0e0e0; border-radius: 6px; padding: 0.8rem 1rem;\"\u003e\u003csummary style=\"font-weight: 600; cursor: pointer;\"\u003eWhat happens after a power outage?\u003c\/summary\u003e\u003cp style=\"margin: 0.6rem 0 0; font-size: 0.93rem; line-height: 1.6;\"\u003eIt resumes your settings automatically. If it was connected to Wi-Fi before the outage it reconnects and syncs the time; if not, set the time on the controller and it carries on from there.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 0.8rem; border: 1px solid #e0e0e0; border-radius: 6px; padding: 0.8rem 1rem;\"\u003e\u003csummary style=\"font-weight: 600; cursor: pointer;\"\u003eCan I add CO₂ monitoring?\u003c\/summary\u003e\u003cp style=\"margin: 0.6rem 0 0; font-size: 0.93rem; line-height: 1.6;\"\u003eYes. VIVOSUN's 4-in-1 sensor adds CO₂ and light detection on top of temperature and humidity, and it is made for the E42A+. It does not work with the original E42 or E42A.\u003c\/p\u003e\u003c\/details\u003e\n\u003c\/details\u003e\n\n\u003cdiv style=\"background: #1c3a1c; color: #fff; padding: 2rem; border-radius: 10px; text-align: center; margin-top: 2rem;\"\u003e\n\u003ch2 style=\"color: #fff !important; margin: 0 0 0.5rem; font-size: 1.3rem;\"\u003ePut your whole tent on one screen\u003c\/h2\u003e\n\u003cp style=\"color: #aed1ae !important; margin: 0 0 1.5rem; font-size: 0.95rem;\"\u003ePre-order the GrowHub E42A+ today. Ships from 25 October 2026. Free shipping over $499*.\u003c\/p\u003e\n\u003cdiv style=\"display: flex; justify-content: center; gap: 1rem; flex-wrap: wrap;\"\u003e\n\u003cbutton id=\"btn-add-to-cart\" style=\"background: #b67317 !important; color: #fff !important; padding: 0.85rem 2rem !important; border: none !important; border-radius: 6px !important; font-size: 1rem !important; font-weight: 700 !important; cursor: pointer !important;\"\u003ePre-order Now\u003c\/button\u003e\n\u003ca href=\"\/collections\/environment-controllers\" style=\"background: transparent !important; color: #fff !important; padding: 0.85rem 2rem !important; border: 2px solid #fff !important; border-radius: 6px !important; font-size: 1rem !important; font-weight: 600 !important; text-decoration: none !important; display: inline-block !important;\"\u003eShop All Controllers\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003cscript\u003e\ndocument.addEventListener('DOMContentLoaded', function() {\n  var btn = document.getElementById('btn-add-to-cart');\n  if (!btn) return;\n  btn.addEventListener('click', function() {\n    fetch('\/cart\/add.js', {\n      method: 'POST',\n      headers: {'Content-Type': 'application\/json'},\n      body: JSON.stringify({id: parseInt('51208393720106', 10), quantity: 1})\n    }).then(function(response) {\n      return response.json();\n    }).then(function(data) {\n      if (data.status \u0026\u0026 data.status !== 200) { throw new Error(data.description); }\n      btn.textContent = 'Added to Cart';\n      btn.style.background = '#2e5e2e';\n      setTimeout(function() {\n        btn.textContent = 'Pre-order Now';\n        btn.style.background = '#b67317';\n      }, 2000);\n    }).catch(function() {\n      btn.textContent = 'Error — Try Again';\n      btn.style.background = '#c0392b';\n      setTimeout(function() {\n        btn.textContent = 'Pre-order Now';\n        btn.style.background = '#b67317';\n      }, 2500);\n    });\n  });\n});\n\u003c\/script\u003e","brand":"VIVOSUN","offers":[{"title":"Default Title","offer_id":51208393720106,"sku":"VSN-E42AP","price":189.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0847\/1573\/3290\/files\/vivosun-growhub-e42a-plus-controller-probe.png?v=1791846198","url":"https:\/\/www.thegrowguys.com.au\/products\/vivosun-growhub-e42a-plus-grow-controller","provider":"The Grow Guys","version":"1.0","type":"link"}