{"product_id":"quest-deh-3000r-digital-controller","title":"Quest DEH 3000R Digital Controller","description":"\u003ch1\u003eQuest DEH 3000R Digital Humidity Controller with Remote Sensor\u003c\/h1\u003e\n\n\u003cp\u003e\u003cstrong\u003eQuest DEH 3000R\u003c\/strong\u003e is a professional wall-mounted digital humidity controller designed for compatible Quest dehumidifiers. Featuring a separate remote sensor, digital relative humidity control and advanced ventilation functions, it gives growers and commercial users greater control over their environment from one central interface.\u003c\/p\u003e\n\n\u003cp\u003eThe DEH 3000R allows you to monitor and control relative humidity while also providing functions for fan operation, ventilation timing and system integration. Its remote sensor can be positioned away from the main controller, allowing humidity to be measured from a more representative location within the controlled environment.\u003c\/p\u003e\n\n\u003cp\u003eDesigned for use with a wide range of Quest commercial and horticultural dehumidifiers, the DEH 3000R is ideal for applications where consistent humidity management is critical.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features \u0026amp; Benefits\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDigital humidity control:\u003c\/strong\u003e Monitor and control relative humidity from a central wall-mounted controller.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemote humidity sensor:\u003c\/strong\u003e Allows the sensing point to be positioned separately from the control panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHumidity control range:\u003c\/strong\u003e Adjustable from 35% to 70% RH.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide humidity monitoring range:\u003c\/strong\u003e Monitors approximately 10% to 95% RH.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge backlit LCD:\u003c\/strong\u003e Clear display for settings and system information.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFan control:\u003c\/strong\u003e Provides direct control and integration with compatible system fans.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVentilation management:\u003c\/strong\u003e Includes programmable fresh-air ventilation functions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDry-out cycle timer:\u003c\/strong\u003e Additional control for specialist drying applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-temperature cut-out:\u003c\/strong\u003e Adds temperature-based protection to the control system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic reboot:\u003c\/strong\u003e Designed to restore operation following a power interruption.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-voltage operation:\u003c\/strong\u003e Operates from a 24VAC control supply.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Quest compatibility:\u003c\/strong\u003e Supports numerous Quest commercial and 50Hz dehumidifier models.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePrecise Digital Humidity Management\u003c\/h2\u003e\n\n\u003cp\u003eThe Quest DEH 3000R allows the user to select a desired relative humidity level and automatically control the connected dehumidifier according to environmental conditions.\u003c\/p\u003e\n\n\u003cp\u003eThe controller has a published \u003cstrong\u003ehumidity control range of 35% to 70% RH\u003c\/strong\u003e, with a broader sensing range of approximately \u003cstrong\u003e10% to 95% RH\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003eThis gives growers and facility operators a straightforward way to establish and maintain a suitable humidity target without continuously switching the dehumidifier on and off manually.\u003c\/p\u003e\n\n\u003ch2\u003eRemote Humidity Sensor\u003c\/h2\u003e\n\n\u003cp\u003eThe main advantage of the \u003cstrong\u003eDEH 3000R\u003c\/strong\u003e over the standard DEH 3000 is its remote sensor.\u003c\/p\u003e\n\n\u003cp\u003eThe sensor can be positioned in a central location where it can accurately monitor the humidity within the controlled area, while the main controller is installed in a convenient location for adjustment and monitoring.\u003c\/p\u003e\n\n\u003cp\u003eThis is particularly useful where the dehumidifier or control panel is installed overhead, remotely or in a position that does not accurately represent room conditions.\u003c\/p\u003e\n\n\u003ch3\u003eRemote Sensor Positioning\u003c\/h3\u003e\n\n\u003cp\u003eFor accurate readings, install the sensor in a representative area of the room rather than directly beside:\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eDehumidifier discharge air\u003c\/li\u003e\n\u003cli\u003eAir-conditioning outlets\u003c\/li\u003e\n\u003cli\u003eVentilation supply points\u003c\/li\u003e\n\u003cli\u003eExternal doors or windows\u003c\/li\u003e\n\u003cli\u003eLocalised sources of heat or moisture\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eCorrect sensor positioning helps ensure the controller responds to overall room conditions rather than a localised pocket of unusually wet or dry air.\u003c\/p\u003e\n\n\u003ch2\u003eProgrammable Ventilation Control\u003c\/h2\u003e\n\n\u003cp\u003eThe DEH 3000R also provides control for compatible fresh-air ventilation systems.\u003c\/p\u003e\n\n\u003cp\u003eA programmable ventilation timer allows the user to manage ventilation periods alongside dehumidification, helping combine humidity management and air exchange within one control system.\u003c\/p\u003e\n\n\u003cp\u003eVentilation functionality depends on the way the controller and associated equipment are installed and wired.\u003c\/p\u003e\n\n\u003ch2\u003eFan \u0026amp; Air Handler Integration\u003c\/h2\u003e\n\n\u003cp\u003eThe controller includes outputs for compatible fan and air-handler integration.\u003c\/p\u003e\n\n\u003cp\u003eThis allows the DEH 3000R to coordinate fan operation with humidity control and ventilation requirements, helping create a more integrated environmental-control system.\u003c\/p\u003e\n\n\u003ch2\u003eA\/C Sensor Integration\u003c\/h2\u003e\n\n\u003cp\u003eWhen configured correctly, the controller can interact with an air-conditioning system through its sensor input.\u003c\/p\u003e\n\n\u003cp\u003eThis allows the dehumidifier to be activated or prevented from operating according to the wider climate-control arrangement, helping avoid unnecessary conflict between connected environmental equipment.\u003c\/p\u003e\n\n\u003ch2\u003eHigh-Temperature Cut-Out\u003c\/h2\u003e\n\n\u003cp\u003eThe DEH 3000R includes a \u003cstrong\u003ehigh-temperature cut-out function\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003eThis allows the control system to prevent dehumidification under unsuitable high-temperature conditions when configured according to the installation instructions.\u003c\/p\u003e\n\n\u003ch2\u003eDry-Out Cycle Timer\u003c\/h2\u003e\n\n\u003cp\u003eA built-in \u003cstrong\u003edry-out cycle timer\u003c\/strong\u003e provides additional control where a timed dehumidification period is required.\u003c\/p\u003e\n\n\u003cp\u003eThis can be useful in drying rooms and other applications where humidity needs to be reduced according to a controlled schedule.\u003c\/p\u003e\n\n\u003ch2\u003eAutomatic Restart\u003c\/h2\u003e\n\n\u003cp\u003eThe DEH 3000R features an \u003cstrong\u003eauto reboot function\u003c\/strong\u003e, allowing the controller to recover automatically following an interruption to the electrical supply.\u003c\/p\u003e\n\n\u003cp\u003eThis is particularly useful in unattended commercial applications where environmental-control equipment is expected to resume operation without manual intervention.\u003c\/p\u003e\n\n\u003ch2\u003eCompatible Quest Dehumidifiers\u003c\/h2\u003e\n\n\u003cp\u003eThe DEH 3000R is compatible with a wide range of Quest equipment, including:\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eQuest 70\u003c\/li\u003e\n\u003cli\u003eQuest 70 50Hz\u003c\/li\u003e\n\u003cli\u003eQuest 155\u003c\/li\u003e\n\u003cli\u003eQuest 155 50Hz\u003c\/li\u003e\n\u003cli\u003eQuest 200 50Hz\u003c\/li\u003e\n\u003cli\u003eQuest 205\u003c\/li\u003e\n\u003cli\u003eQuest 225\u003c\/li\u003e\n\u003cli\u003eQuest 335\u003c\/li\u003e\n\u003cli\u003eQuest 375 50Hz\u003c\/li\u003e\n\u003cli\u003eQuest 506\u003c\/li\u003e\n\u003cli\u003eQuest 506 277V\u003c\/li\u003e\n\u003cli\u003eQuest 706 50Hz\u003c\/li\u003e\n\u003cli\u003eQuest 746\u003c\/li\u003e\n\u003cli\u003eQuest 876\u003c\/li\u003e\n\u003cli\u003eSelected Quest Dual models\u003c\/li\u003e\n\u003cli\u003eQuest 185 Cool\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e Quest has produced multiple generations and electrical versions of some models. Always confirm the part or model number on your dehumidifier before ordering the controller.\u003c\/p\u003e\n\n\u003ch2\u003eQuest DEH 3000R Technical Specifications\u003c\/h2\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eQuest\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDEH 3000R\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4028531\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDigital Dehumidifier \u0026amp; Ventilation Controller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSensor Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRemote Humidity Sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e24VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum Current – Damper\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum Current – Compressor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum Current – Fan\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHumidity Sensing Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10–95% RH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHumidity Control Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e35–70% RH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHumidity Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±5% RH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAuxiliary Relay Capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5A at 24VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e30–90°F \/ Approx. -1 to 32°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eApprox. 4.95\" × 4.19\" × 1.06\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eProfessional Installation\u003c\/h2\u003e\n\n\u003cp\u003eThe DEH 3000R is a low-voltage HVAC control and should be installed by a suitably competent person familiar with Quest dehumidifiers and environmental-control wiring.\u003c\/p\u003e\n\n\u003cp\u003eCorrect installation is important to ensure the remote sensor, dehumidifier, fan and any ventilation equipment operate as intended.\u003c\/p\u003e\n\n\u003cp\u003eFollow the Quest DEH 3000R wiring diagrams and installation manual for the specific dehumidifier being connected.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation Considerations\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eMount the main controller on a suitable flat surface.\u003c\/li\u003e\n\u003cli\u003ePosition the remote sensor in a representative area of the room.\u003c\/li\u003e\n\u003cli\u003eAvoid mounting the sensor directly beside supply or exhaust airflow.\u003c\/li\u003e\n\u003cli\u003eUse the correct low-voltage wiring for the installation.\u003c\/li\u003e\n\u003cli\u003eConfirm compatibility with the specific Quest model before connecting.\u003c\/li\u003e\n\u003cli\u003eFollow all applicable electrical and installation regulations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat's Included?\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003e1 × Quest DEH 3000R Digital Control with Remote Sensor.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eDehumidifier, external ventilation equipment and additional installation wiring are not included unless specifically stated.\u003c\/p\u003e\n\n\u003ch2\u003eQuest DEH 3000R – Centralised Environmental Control\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eQuest DEH 3000R\u003c\/strong\u003e provides a comprehensive way to control compatible Quest dehumidifiers while also integrating humidity monitoring, ventilation, fan control and advanced system functions.\u003c\/p\u003e\n\n\u003cp\u003eWith its \u003cstrong\u003eremote sensor, digital humidity setpoint, programmable ventilation timer, high-temperature cut-out and auto reboot\u003c\/strong\u003e, it is an ideal upgrade for professional growing environments and other commercial spaces requiring reliable humidity management.\u003c\/p\u003e","brand":"Quest","offers":[{"title":"Default Title","offer_id":59182212874623,"sku":null,"price":237.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0794\/0571\/1635\/files\/Quest-DEH-3000R-Control-768x768.png?v=1794570344","url":"https:\/\/greenspirit-hydroponics.com\/products\/quest-deh-3000r-digital-controller","provider":"Green Spirit Horticulture","version":"1.0","type":"link"}