{"title":"Gravity: Analog Dissolved Oxygen Sensor / Meter Kit For Arduino (Pre-Order)","handle":"gravity-analog-dissolved-oxygen-sensor-meter-kit-for-arduino-pre-order","url":"/products/gravity-analog-dissolved-oxygen-sensor-meter-kit-for-arduino-pre-order","description":"Measure dissolved oxygen in water for aquaculture, environmental monitoring, natural science projects and general water-quality work. This DFRobot Gravity kit pairs a galvanic dissolved oxygen probe with an analogue signal converter board for easy use with Arduino and other microcontrollers that have an ADC input.The galvanic probe does not need a polarisation warm-up time, so it is ready to use when prepared. The probe uses a replaceable membrane cap and filling solution to help keep maintenance costs down, while the converter board provides a plug-and-play Gravity analogue interface.Open-source code and a detailed tutorial are provided by DFRobot to help you build your own dissolved oxygen detector. Please note that the filling solution is not included due to air transport restrictions; the sensor cannot operate without 0.5 mol/L NaOH filling solution in the membrane cap, and appropriate gloves and care should be used when handling it.Features:Dissolved Oxygen Probe: Galvanic probe, no need polarization timeDissolved Oxygen Probe: Filling solution and membrane cap is replaceable, low maintenance costSignal Converter Board: 3.3~5.5V wide-range power supply, compatible with most Arduino microcontrollerSignal Converter Board: 0~3.0V analog output, compatible with all microcontrollers with ADC function.Signal Converter Board: Gravity interface, plug and play, easy to useSpecifications:Type: Galvanic ProbeDetection Range: 0~20mg/LResponse Time: Up to 98% full response, within 90 seconds (25℃)Pressure Range: 0~50PSIElectrode Service Life: 1 year (normal use)Membrane Cap Replacement Period: 1~2 months (in muddy water); 4~5 months (in clean water)Filling Solution Replacement Period: Once every monthCable Length: 2 metersProbe Connector: BNCOperating Voltage: 3.3~5.5VOutput Signal: 0~3.0VCable Connector: BNCSignal Connector: Gravity Analog Interface (PH2.0-3P)Dimension: 42mm * 32mmDuring measurement, gently stir the water so oxygen is evenly distributed. Avoid touching the oxygen-permeable membrane with fingernails or sharp objects, as it is sensitive and fragile.","vendor":"DFRobot","product_type":"Water Quality Sensor","in_stock":true,"options":[],"variants":[{"id":9509,"title":"Default Title","sku":"DF-SEN0237-A","mpn":"","price":298.95,"on_sale":false,"in_stock":true,"available_quantity":475,"option1":"Default Title","option2":"","option3":""}],"documents":[{"title":"Analog Dissolved Oxygen Sensor Layout","type":"mechanical_drawings","type_label":"Mechanical Drawings","url":"https://littlebirdelectronics.com.au/rails/active_storage/blobs/redirect/BAh7BkkiC19yYWlscwY6BkVUewdJIglkYXRhBjsAVGkD+TgDSSIIcHVyBjsAVEkiDGJsb2JfaWQGOwBG--96f7522c299804abe48f2b39fc5b39edd32464a2/SEN0237_analog-dissolved-oxygen-sensor_layout_V1.0.pdf","link":false,"file_extension":"PDF","file_size":27247,"description":"Board layout and mechanical dimensions for the dissolved oxygen sensor module"},{"title":"Analog Dissolved Oxygen Sensor SVG Assets","type":"cad_data","type_label":"CAD Data","url":"https://littlebirdelectronics.com.au/rails/active_storage/blobs/redirect/BAh7BkkiC19yYWlscwY6BkVUewdJIglkYXRhBjsAVGkD+jgDSSIIcHVyBjsAVEkiDGJsb2JfaWQGOwBG--45789ef8dc95d9f958b8107a90762d47e65e2619/SEN0237-A_analog-dissolved-oxygen-sensor_svg_V1.0.zip","link":false,"file_extension":"ZIP","file_size":1006365,"description":"SVG design files for the dissolved oxygen sensor board"},{"title":"Analog Dissolved Oxygen Sensor Schematics","type":"schematic","type_label":"Schematic","url":"https://littlebirdelectronics.com.au/rails/active_storage/blobs/redirect/BAh7BkkiC19yYWlscwY6BkVUewdJIglkYXRhBjsAVGkD+zgDSSIIcHVyBjsAVEkiDGJsb2JfaWQGOwBG--8652417f3c2035b2ca4970b30e8ce20ff005bc53/SEN0237_analog-dissolved-oxygen-sensor_schematics_V1.0.pdf","link":false,"file_extension":"PDF","file_size":85550,"description":"Electrical schematic of the dissolved oxygen sensor module"}]}