{"title":"Root Zone \u0026 Substrate Sensors","description":"\u003cp\u003eSubstrate water content, EC, and temperature sensors plus root-zone oxygen for precision irrigation in rockwool, coco, and soil.\u003c\/p\u003e","products":[{"product_id":"wireless-substrate-sensor-terralink","title":"Growlink - Wireless Substrate Sensor","description":"\u003cp\u003e\u003cstrong\u003eGrowlink Wireless Substrate Sensor\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eThe Growlink Wireless Substrate Sensor is an advanced monitoring solution designed to deliver real-time insight into root zone conditions without the need for wired connections. Engineered for flexibility and precision, this sensor provides critical data to optimize irrigation, nutrient delivery, and overall plant performance.\u003c\/p\u003e \u003cp\u003eDesigned to measure key substrate parameters such as volumetric water content (VWC), electrical conductivity (EC), and temperature, the sensor enables data-driven decisions that improve consistency and efficiency in cultivation systems. Its wireless connectivity allows for easy deployment and flexible placement across grow environments, eliminating complex wiring and simplifying installation.\u003c\/p\u003e \u003cp\u003eSeamlessly integrating with Growlink's wireless network and control platform, the sensor provides continuous monitoring and remote access to data, helping growers maintain optimal root zone conditions at all times. Its durable construction ensures reliable performance in high-moisture, high-demand environments.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eWireless monitoring of substrate conditions\u003c\/li\u003e \u003cli\u003eMeasures moisture (VWC), EC, and temperature\u003c\/li\u003e \u003cli\u003eProvides real-time data for precise irrigation control\u003c\/li\u003e \u003cli\u003eEliminates wiring for flexible installation and scalability\u003c\/li\u003e \u003cli\u003eIntegrates with Growlink wireless gateway and automation systems\u003c\/li\u003e \u003cli\u003eSupports optimized nutrient delivery and plant performance\u003c\/li\u003e \u003cli\u003eDurable design for greenhouse and indoor grow environments\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eDesigned for flexibility and precision, the Growlink Wireless Substrate Sensor delivers the critical root zone data needed to improve efficiency, consistency, and crop outcomes.\u003c\/p\u003e","brand":"Growlink","offers":[{"title":"Default Title","offer_id":50589177938231,"sku":"e-Terra-Wireless","price":399.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/0341\/5863\/files\/rak_wireless_terralink.png?v=1776896159"},{"product_id":"vwc-1-acclima-tdr-310w-volumetric-water-content-sensor","title":"Pulse Grow - VWC-1 Acclima TDR-310W Volumetric Water Content Sensor","description":"\u003ch3\u003eVWC-1: Acclima Soil Moisture, EC \u0026amp; Temp Sensor\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eMonitors soil moisture (VWC), soil temperature, and soil E.C.\u003c\/li\u003e \u003cli\u003eIdeal for rockwool \u0026amp; coco\u003c\/li\u003e \u003cli\u003e15 feet \/ 5 meter cord\u003c\/li\u003e \u003cli\u003eHub ready\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eThe TDR-310W is a modification to the Acclima TDR-315N. Its shorter rods allow it fit in standard rockwool blocks. It is a complete integrated time domain reflectometer that combines ultra-fast waveform generating and digitizing functions with a precision 5 pico-second resolution time base and highly sophisticated waveform digitizing and analyzing firmware that provides true time domain analysis of soil-propagated waveforms. Its form factor is designed for shallower horizontal installations where it is forced into the sidewall of a trench that has been dug to the desired measurement depth. A probe guide is provided to ensure that the waveguide rods are parallel when pushing them into the soil. \u003c\/p\u003e","brand":"Pulse Grow","offers":[{"title":"Default Title","offer_id":50677558870327,"sku":"PLVWC1","price":296.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/0341\/5863\/files\/9cec6adb0cc0569c6057c085a8a9a989.jpg?v=1758121450"},{"product_id":"vwc-2-terralink-vwc-sensor","title":"Pulse Grow - VWC-2: Terralink VWC Sensor","description":"\u003cdiv\u003e \u003cdiv\u003e \u003cdiv\u003e \u003cdiv\u003e \u003csection\u003e \u003ch3\u003e\u003cstrong\u003eVWC-2: Terralink VWC Sensor\u003c\/strong\u003e\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e\u003cstrong\u003eMonitors soil moisture (VWC), soil temperature, and soil E.C.\u003c\/strong\u003e\u003c\/li\u003e \u003cli\u003e\u003cstrong\u003eIdeal for Rockwool \u0026amp; Coco\u003c\/strong\u003e\u003c\/li\u003e \u003cli\u003e\u003cstrong\u003e30 feet \/ 9 meter cord\u003c\/strong\u003e\u003c\/li\u003e \u003cli\u003e \u003cp\u003e\u003cstrong\u003eHub ready\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003e \u003c\/p\u003e \u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eDesigned to provide precise and reliable soil moisture data, the Terralink Substrate Sensor (VWC-2) helps you optimize your farm's irrigation system and make better-informed decisions for your crops. With the Terralink Substrate Sensor (VWC-2), you can ensure your plants receive the right amount of water at the right time, reducing waste and maximizing yield.\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e \u003cp\u003eVWC-2: Terralink VWC Sensor\u003cbr\u003eMonitors soil moisture (VWC), soil temperature, and soil E.C.\u003cbr\u003eIdeal for Rockwool \u0026amp; Coco\u003cbr\u003e30 feet \/ 9 meter cord\u003cbr\u003eHub ready\u003c\/p\u003e \u003cp\u003e \u003c\/p\u003e \u003cp\u003eDesigned to provide precise and reliable soil moisture data, the Terralink Substrate Sensor (VWC-2) helps you optimize your farm's irrigation system and make better-informed decisions for your crops. With the Terralink Substrate Sensor (VWC-2), you can ensure your plants receive the right amount of water at the right time, reducing waste and maximizing yield.\u003c\/p\u003e \u003cp\u003eRequires Pulse Hub\u003c\/p\u003e \u003c\/section\u003e \u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e \u003cdiv\u003e \u003cdiv\u003e \u003cdiv\u003e\u003cform method=\"post\" action=\"https:\/\/pulsegrow.com\/cart\/add\" enctype=\"multipart\/form-data\"\u003e \u003cdiv\u003e \u003cdiv\u003e\u003c\/div\u003e \u003c\/div\u003e \u003c\/form\u003e\u003c\/div\u003e \u003c\/div\u003e \u003c\/div\u003e","brand":"Pulse Grow","offers":[{"title":"Default Title","offer_id":50677559558455,"sku":"PLTerralink","price":296.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/0341\/5863\/files\/575a908a0869d2218e1a0c31e997a4db.jpg?v=1758121465"},{"product_id":"teros-12-retrofit-kit-diy","title":"Pulse Grow - TEROS-12 Retrofit Kit (DIY)","description":"\u003cp\u003eAlready own a Hub-ready sensor? 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Utilizing advanced Time Domain Reflectometry (TDR) technology, this sensor provides reliable data to support optimized irrigation and nutrient management.\u003c\/p\u003e \u003cp\u003eEngineered for professional applications, the TDR-305W offers exceptional accuracy across a wide range of soil types and growing media. Its ability to measure volumetric water content (VWC), pore water EC, and temperature makes it an essential tool for data-driven cultivation, helping growers maintain ideal root zone conditions.\u003c\/p\u003e \u003cp\u003eDesigned for durability and long-term deployment, the sensor features a rugged, waterproof construction suitable for both greenhouse and field environments. Its stable calibration minimizes drift over time, reducing maintenance requirements and ensuring consistent performance.\u003c\/p\u003e \u003cp\u003eCompatible with a variety of monitoring and control systems, including advanced automation platforms, the TDR-305W integrates seamlessly into irrigation and fertigation strategies for improved efficiency and crop performance.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eMeasures soil moisture (VWC), temperature, and pore water EC\u003c\/li\u003e \u003cli\u003eAdvanced TDR technology for high accuracy and reliability\u003c\/li\u003e \u003cli\u003eSuitable for a wide range of soils and growing media\u003c\/li\u003e \u003cli\u003eProvides real-time data for precise irrigation management\u003c\/li\u003e \u003cli\u003eStable calibration with minimal drift over time\u003c\/li\u003e \u003cli\u003eRugged, waterproof design for indoor and outdoor use\u003c\/li\u003e \u003cli\u003eCompatible with monitoring and automation systems\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eDesigned for precision and long-term performance, the Acclima TDR-305W Soil Moisture Sensor delivers the critical root zone data needed to optimize irrigation, improve plant health, and maximize yields.\u003c\/p\u003e","brand":"Growlink","offers":[{"title":"Default Title","offer_id":51139098050871,"sku":"TDR305W","price":349.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/0341\/5863\/files\/mini_sensor_umidade_de_solo_5cm_tipo_tdr_681_1_62a2465f4a1634bdb53fd22e2f95d660.png?v=1758903020"},{"product_id":"trolmaster-soil-moisture-ec-and-temp-3-in-1-substrate-sensor-set-wcs-9","title":"TrolMaster - Soil Moisture\/EC and Temp 3-in-1 Substrate Sensor Set (WCS-9)","description":"\u003ch3\u003eTrolMaster Soil Moisture\/EC and Temp 3-in-1 Substrate Sensor Set (WCS-9)\u003c\/h3\u003e \u003cp\u003eThe TrolMaster WCS-9 3-in-1 Substrate Sensor Set is a professional-grade monitoring solution designed to deliver precise, real-time insight into root zone conditions. By measuring volumetric water content, electrical conductivity (EC), and temperature simultaneously, it gives growers the data needed to optimize irrigation, nutrient delivery, and overall plant performance.\u003c\/p\u003e \u003ch3\u003eKey Features\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e3-in-1 sensing: measures moisture (VWC), EC, and temperature in one device\u003c\/li\u003e \u003cli\u003eAdvanced multi-node architecture for highly accurate root zone readings\u003c\/li\u003e \u003cli\u003eSupports daisy-chaining up to four sensor nodes for averaged data across the substrate\u003c\/li\u003e \u003cli\u003eReduces errors caused by localized dry spots or channeling\u003c\/li\u003e \u003cli\u003eReal-time monitoring with integration into TrolMaster control systems\u003c\/li\u003e \u003cli\u003eEnables data-driven irrigation strategies like \"Feed on Demand\"\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eBest For\u003c\/h3\u003e \u003cul\u003e \u003cli\u003ePrecision irrigation and fertigation control\u003c\/li\u003e \u003cli\u003eMonitoring substrate moisture levels and nutrient concentration\u003c\/li\u003e \u003cli\u003eOptimizing dry-back cycles and crop steering strategies\u003c\/li\u003e \u003cli\u003eGreenhouse, indoor, and controlled environment agriculture\u003c\/li\u003e \u003cli\u003eCommercial cultivation and research facilities\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eCompatibility\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eSystems:\u003c\/strong\u003e Aqua-X, Hydro-X, Tent-X, and Green-X controllers\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eControllers:\u003c\/strong\u003e NFS-1, NFS-2, NFS-3, HCS-2, TCS-1, GCS-1\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eExpandable:\u003c\/strong\u003e Supports up to 4 sensor nodes per display\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eSpecifications\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eWater Content (VWC):\u003c\/strong\u003e 0-100%\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eEC Range:\u003c\/strong\u003e 0-30 mS\/cm\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eTemperature Range:\u003c\/strong\u003e 32-122degF (0-50degC)\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003ePower Input:\u003c\/strong\u003e 12V\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eCable:\u003c\/strong\u003e Includes RJ12 connection cable\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eWhat's Included\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eWCS-9 sensor display unit\u003c\/li\u003e \u003cli\u003eWN-9 sensor node probe\u003c\/li\u003e \u003cli\u003eRJ12 cable set\u003c\/li\u003e \u003cli\u003eT-splitter for expansion\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eBy aggregating data from multiple points within the substrate, the WCS-9 provides a more accurate representation of root zone conditions compared to single-point sensors-helping operators make smarter, data-driven decisions and maintain consistent results across their facility.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Additional sensor nodes are sold separately for expanded monitoring coverage.\u003c\/p\u003e","brand":"ThinkGrow","offers":[{"title":"Default Title","offer_id":52058784891191,"sku":"WCS-9","price":199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/0341\/5863\/files\/img-63303c362b024393b4dc87a83c3d00ee.png?v=1777325872"},{"product_id":"trolmaster-substrate-sensor-node-vwc-ec-tempwn-9","title":"TrolMaster - Substrate Sensor Node (VWC - EC \u0026 Temp)(WN-9)","description":"\u003cp\u003eThe TrolMaster WN-9 Substrate Sensor Node is a precision probe designed to expand and enhance the capabilities of the WCS-9 monitoring system. Built for professional cultivation environments, it delivers accurate, real-time readings of moisture (VWC), electrical conductivity (EC), and temperature directly within the root zone-helping operators make data-driven irrigation and feeding decisions.\u003c\/p\u003e \u003ch3\u003eKey Features\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e3-in-1 sensing: measures volumetric water content (VWC), EC, and temperature\u003c\/li\u003e \u003cli\u003eDesigned as an expansion node for the WCS-9 Substrate Sensor system\u003c\/li\u003e \u003cli\u003eStainless steel probe spikes for accurate internal root zone measurements\u003c\/li\u003e \u003cli\u003eDaisy-chain capability supports up to 4 sensor nodes per display\u003c\/li\u003e \u003cli\u003eImproves accuracy by averaging readings across multiple substrate points\u003c\/li\u003e \u003cli\u003eEnables advanced irrigation strategies like \"Feed on Demand\"\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eBest For\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eIncreasing monitoring accuracy across large containers or slabs\u003c\/li\u003e \u003cli\u003eEliminating variability caused by dry spots or channeling\u003c\/li\u003e \u003cli\u003ePrecision irrigation and fertigation control\u003c\/li\u003e \u003cli\u003eGreenhouse, indoor, and controlled environment agriculture\u003c\/li\u003e \u003cli\u003eCommercial cultivation and research facilities\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eCompatibility\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eSystem:\u003c\/strong\u003e WCS-9 Substrate Sensor Display (required)\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eControllers:\u003c\/strong\u003e Aqua-X, Aqua-X Pro, Hydro-X, Hydro-X Pro, Tent-X, Green-X\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eExpandable:\u003c\/strong\u003e Up to 4 WN-9 nodes per WCS-9 unit\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eSpecifications\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eWater Content (VWC):\u003c\/strong\u003e 0-100%\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eEC Range:\u003c\/strong\u003e 0-30 mS\/cm\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eTemperature Range:\u003c\/strong\u003e 32-122degF (0-50degC)\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003ePower Input:\u003c\/strong\u003e 5V \/ 0.1A\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eMeasurement Interval:\u003c\/strong\u003e ~1 minute\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eWhat's Included\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eWN-9 substrate sensor node probe\u003c\/li\u003e \u003cli\u003e12 ft daisy-chain control cable\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eBy adding multiple WN-9 nodes, growers can capture data from several points within the substrate and generate a more reliable average of root zone conditions-reducing guesswork and improving consistency across the entire crop.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e This is an expansion sensor and requires a WCS-9 display unit for operation.\u003c\/p\u003e","brand":"ThinkGrow","offers":[{"title":"Default Title","offer_id":52071226507575,"sku":"WN-9","price":119.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/0341\/5863\/files\/img-b2fe167b95084974b2a7598daeff711d.png?v=1777569731"},{"product_id":"apogee-instruments-mo-200-oxygen-sensor-with-handheld-meter","title":"Apogee Instruments - MO-200: Oxygen Sensor with Handheld Meter","description":"\u003cp\u003eThe Apogee MO-200 pairs a 0 to 30 percent gaseous oxygen sensor with a handheld meter for instant spot checks of O2 in the root zone, sealed rooms, and compost. The sensor reads on a 2 m lead.\u003c\/p\u003e\u003cp\u003eOxygen is the overlooked variable in the root zone and in CO2-enriched sealed rooms; the MO-200 makes it easy to verify O2 levels where plants and microbes compete for it.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMeasures 0 to 30 percent gaseous O2 with a linear voltage output\u003c\/li\u003e\n\u003cli\u003eHeated membrane option prevents condensation in soil, media, and compost\u003c\/li\u003e\n\u003cli\u003eRugged polypropylene body, fully potted for long-term deployment in porous media\u003c\/li\u003e\n\u003cli\u003eInternal thermistor for temperature monitoring and signal correction\u003c\/li\u003e\n\u003cli\u003eSimple ambient-air calibration (atmosphere is 20.95 percent O2)\u003c\/li\u003e\n\u003cli\u003eBuilt and calibrated in Logan, Utah; NIST-traceable, made in the USA, and backed by an industry-leading 4-year warranty.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhy Choose This Model\u003c\/h3\u003e\u003cp\u003eThe MO-200 is the simplest way to spot-check gaseous oxygen without wiring a sensor into a datalogger.\u003c\/p\u003e\u003ch3\u003eIdeal Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eRoot-zone and substrate O2 spot checks\u003c\/li\u003e\n\u003cli\u003eSealed, CO2-enriched grow rooms\u003c\/li\u003e\n\u003cli\u003eCompost and respiration studies\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Apogee Instruments","offers":[{"title":"Default Title","offer_id":52354465464631,"sku":"MO-200","price":459.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/0341\/5863\/files\/mo-200-meter__68487.1580147095.jpg?v=1780693108"},{"product_id":"apogee-instruments-teros-12-substrate-moisture-temperature-ec-sensor-modbus","title":"Apogee Instruments - TEROS-12: Substrate Moisture, Temperature \u0026 EC Sensor (Modbus)","description":"\u003cp\u003eThe Apogee TEROS-12 measures volumetric water content, temperature, and electrical conductivity in growing media, with Modbus digital output and built-in calibrations including one optimized for soilless substrates.\u003c\/p\u003e\u003cp\u003eUsing well-tested 70 MHz capacitance and a 1.01 L volume of influence, the TEROS-12 minimizes interference from salinity and texture, making it ideal for crop steering in rockwool, coco, and soil. Its salt-resistant steel needles install easily and resist drift.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMeasures VWC, temperature, and EC in one probe\u003c\/li\u003e\n\u003cli\u003e70 MHz capacitance with 1.01 L volume of influence\u003c\/li\u003e\n\u003cli\u003eBuilt-in soilless, mineral, and dielectric VWC calibrations\u003c\/li\u003e\n\u003cli\u003eModbus digital output; no cloud subscription required\u003c\/li\u003e\n\u003cli\u003eRugged steel needles for repeated substrate insertion\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhy Choose This Model\u003c\/h3\u003e\u003cp\u003eThe TEROS-12 is the substrate sensor behind modern crop steering, giving moisture, EC, and temperature for precise irrigation decisions.\u003c\/p\u003e\u003ch3\u003eIdeal Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSubstrate water content and EC for crop steering\u003c\/li\u003e\n\u003cli\u003eIrrigation scheduling in rockwool, coco, and soil\u003c\/li\u003e\n\u003cli\u003eMulti-depth substrate monitoring\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Apogee Instruments","offers":[{"title":"Default Title","offer_id":52354478473527,"sku":"TEROS12-MB","price":399.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/0341\/5863\/files\/Soil-Moisture-Category-Page.png?v=1780693110"},{"product_id":"apogee-instruments-oxygen-sensor-0-30","title":"Apogee Instruments - Oxygen Sensor (0-30%)","description":"\u003cp\u003eThe Apogee oxygen sensor measures 0-30% gaseous O2 for the root zone, sealed CO2 rooms, and compost, with an internal thermistor for temperature correction. Choose the model for your system.\u003c\/p\u003e\u003cp\u003eAll models share the heated, potted polypropylene design; they differ in reference type and output.\u003c\/p\u003e\u003ch3\u003eAvailable Options\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eAnalog, 0-30% (SO-130)\u003c\/li\u003e\n\u003cli\u003eAnalog, fast thermistor reference (SO-210)\u003c\/li\u003e\n\u003cli\u003eSDI-12 digital, fast thermistor reference (SO-421)\u003c\/li\u003e\n\u003cli\u003eSDI-12 digital, 0-30% (SO-431)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMeasures 0-30% gaseous O2\u003c\/li\u003e\n\u003cli\u003eHeated membrane option for porous media\u003c\/li\u003e\n\u003cli\u003eInternal thermistor for temperature correction\u003c\/li\u003e\n\u003cli\u003eRugged potted polypropylene body\u003c\/li\u003e\n\u003cli\u003eMade in the USA and backed by Apogee's industry-leading warranty and support.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eIdeal Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eRoot-zone and substrate O2\u003c\/li\u003e\n\u003cli\u003eSealed CO2-enriched rooms\u003c\/li\u003e\n\u003cli\u003eCompost and soil respiration\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Apogee Instruments","offers":[{"title":"Analog (0-30%)","offer_id":52354919498039,"sku":"SO-130","price":389.0,"currency_code":"USD","in_stock":true},{"title":"Analog, fast thermistor reference","offer_id":52354919530807,"sku":"SO-210","price":389.0,"currency_code":"USD","in_stock":true},{"title":"SDI-12, fast thermistor reference","offer_id":52354919563575,"sku":"SO-421","price":489.0,"currency_code":"USD","in_stock":true},{"title":"SDI-12 (0-30%)","offer_id":52354919596343,"sku":"SO-431","price":489.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/0341\/5863\/files\/DSC_3268__85149.1772661920_85ddc3a8-0f28-49ba-8916-a3e2d94730be.jpg?v=1780695541"}],"url":"https:\/\/www.blacklabelsupply.io\/collections\/root-zone-substrate-sensors.oembed","provider":"BLACK LABEL","version":"1.0","type":"link"}