# Request for Fritzing parts: DFRobot Gravity ORP PRO, EC K=10, Turbidity Sensor, and Fermion NH3 Sensor **URL:** \ **Category:** parts help\ **Created:** [June 6, 2026, 6:21pm UTC](https://forum.fritzing.org/t/request-for-fritzing-parts-dfrobot-gravity-orp-pro-ec-k-10-turbidity-sensor-and-fermion-nh3-sensor/34177 "2026-06-06T18:21:42Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![ch1ck3nx](https://forum.fritzing.org/letter_avatar_proxy/v4/letter/c/35a633/32.png) [@ch1ck3nx](https://forum.fritzing.org/u/ch1ck3nx)\ **Post date:** [June 6, 2026, 6:21pm UTC](https://forum.fritzing.org/t/request-for-fritzing-parts-dfrobot-gravity-orp-pro-ec-k-10-turbidity-sensor-and-fermion-nh3-sensor/34177/1 "2026-06-06T18:21:43Z")
Hello, I would like to request Fritzing parts for four DFRobot water-quality / aquaculture-related sensor modules. I searched in Fritzing and online using the terms “fritzing part”, the SKU numbers, and the product names, but I could not find matching ready-to-use Fritzing parts for these exact modules. * * * ## Part 1 ### Name of the part ❗ DFRobot Gravity: Analog ORP Sensor Meter PRO SKU: SEN0464 ### Manufacturer DFRobot ### Product / documentation links DFRobot Wiki: [https://wiki.dfrobot.com/sen0464/](https://wiki.dfrobot.com/sen0464/) DFRobot product page: [https://www.dfrobot.com/product-2446.html](https://www.dfrobot.com/product-2446.html) ### Previous work, similar parts I could only find similar DFRobot Gravity analog sensor boards, but not this exact SEN0464 ORP Sensor Meter PRO Fritzing part. ### Top view ❗ I will paste a top-view image of the SEN0464 signal converter board and probe connector here. Important visible connector details: - Gravity analog output connector: PH2.0 - 3Pin - Probe/input connector: 5.08 mm / 0.20 inch pluggable connector - Board size: approximately 42 mm × 32 mm ### Datasheet / official technical documentation ❗ Official DFRobot documentation: [https://wiki.dfrobot.com/sen0464/](https://wiki.dfrobot.com/sen0464/) ### Technical data ❗ Product type: Gravity analog ORP sensor meter / breakout board with industrial ORP probe ORP signal converter: - Input voltage: 5 V - Input signal: 0.5 V to 4.5 V - Input interface: 5.08 mm / 0.20 inch pluggable connector - Measuring range: -2000 mV to +2000 mV - Output interface: Gravity PH2.0 - 3Pin - Module size: 42 mm × 32 mm Industrial ORP probe: - Indicator electrode: Platinum - Reference electrode: Silver / silver chloride - Suitable temperature: 5 °C to 70 °C - Electrode potential: 245 mV to 270 mV - Reference electrode internal resistance: ≤10 kΩ - Electrode stability: ±8 mV / 24 h ### Footprint Breakout board / Gravity sensor module. No standard IC footprint applies. ### Type Breakout board, sub assembly, plug in module * * * ## Part 2 ### Name of the part ❗ DFRobot Gravity: Analog Electrical Conductivity Sensor / Meter (K=10) SKU: DFR0300-H ### Manufacturer DFRobot ### Product / documentation links DFRobot Wiki: [https://wiki.dfrobot.com/Gravity\_Analog\_Electrical\_Conductivity\_Sensor\_Meter\_K%3D10\_SKU\_DFR0300-H](https://wiki.dfrobot.com/Gravity_Analog_Electrical_Conductivity_Sensor_Meter_K%3D10_SKU_DFR0300-H) Alternative DFRobot Wiki short link: [https://wiki.dfrobot.com/dfr0300-h/](https://wiki.dfrobot.com/dfr0300-h/) ### Previous work, similar parts There are similar EC sensor parts for other DFRobot EC modules, especially K=1.0 versions, but I could not find the exact K=10 DFR0300-H board/probe combination. ### Top view ❗ I will paste a top-view image of the DFR0300-H board and probe connector here. Important visible connector details: - Gravity analog output connector: PH2.0 - 3Pin - Probe connector: BNC - Board size: approximately 42 mm × 32 mm ### Datasheet / official technical documentation ❗ Official DFRobot documentation: [https://wiki.dfrobot.com/Gravity\_Analog\_Electrical\_Conductivity\_Sensor\_Meter\_K%3D10\_SKU\_DFR0300-H](https://wiki.dfrobot.com/Gravity_Analog_Electrical_Conductivity_Sensor_Meter_K%3D10_SKU_DFR0300-H) ### Technical data ❗ Product type: Gravity analog electrical conductivity sensor / meter for high-conductivity liquid Signal conditioner board: - Supply voltage: 3.0 V to 5.0 V - Output voltage: 0 V to 3.2 V - Probe connector: BNC - Signal connector: Gravity PH2.0 - 3Pin - Measurement accuracy: ±5% F.S. Electrical conductivity probe: - Probe constant: K = 10 - Intended liquid type: high electrical conductivity liquid, such as seawater or concentrated brine - Measurement range: up to 100 ms/cm - Suitable for mariculture / marine aquaculture water quality applications ### Footprint Breakout board / Gravity sensor module. No standard IC footprint applies. ### Type Breakout board, sub assembly, plug in module * * * ## Part 3 ### Name of the part ❗ DFRobot Gravity: Analog Turbidity Sensor for Arduino SKU: SEN0189 ### Manufacturer DFRobot ### Product / documentation links DFRobot Wiki: [https://wiki.dfrobot.com/sen0189/](https://wiki.dfrobot.com/sen0189/) DFRobot product page: [https://www.dfrobot.com/product-1394.html](https://www.dfrobot.com/product-1394.html) ### Previous work, similar parts I found some generic turbidity sensor references, but I could not find a clean Fritzing part for the exact DFRobot Gravity SEN0189 module with its adapter board and sensor probe. ### Top view ❗ I will paste a top-view image of the SEN0189 adapter board and turbidity probe here. Important visible connector details: - Gravity analog/digital sensor adapter board - Signal connector for microcontroller - Separate turbidity probe connected to the adapter board ### Datasheet / official technical documentation ❗ Official DFRobot documentation: [https://wiki.dfrobot.com/sen0189/](https://wiki.dfrobot.com/sen0189/) ### Technical data ❗ Product type: Gravity analog turbidity sensor module with probe Main specifications: - Operating voltage: 5 V DC - Operating current: up to 40 mA - Response time: less than 500 ms - Output method: analog output and digital output - Analog output: approximately 0 V to 4.5 V - Digital output: adjustable threshold - Detection principle: uses light transmittance / scattering to estimate suspended particles and turbidity in water - Important note: the probe/sensor head is used in liquid, but the adapter board itself should be kept dry and protected from water. ### Footprint Breakout board / Gravity sensor module. No standard IC footprint applies. ### Type Breakout board, sub assembly, plug in module * * * ## Part 4 ### Name of the part ❗ DFRobot Fermion: MEMS Ammonia NH3 Gas Detection Sensor Breakout, 1–300 ppm SKU: SEN0567 ### Manufacturer DFRobot ### Product / documentation links DFRobot Wiki: [https://wiki.dfrobot.com/SKU\_SEN0567\_Fermion\_MEMS\_NH3\_Sensor\_breakout](https://wiki.dfrobot.com/SKU_SEN0567_Fermion_MEMS_NH3_Sensor_breakout) Alternative DFRobot Wiki page: [https://wiki.dfrobot.com/sen0567/](https://wiki.dfrobot.com/sen0567/) DFRobot product page: [https://www.dfrobot.com/product-2706.html](https://www.dfrobot.com/product-2706.html) ### Previous work, similar parts I could only find generic gas sensor or MQ-series Fritzing parts, but not this exact DFRobot Fermion MEMS NH3 breakout board, SKU SEN0567. ### Top view ❗ I will paste a top-view image of the SEN0567 breakout board here. Important visible connector details: - Small MEMS NH3 gas sensor breakout board - 2.54 mm pitch header pins - Board size: approximately 13 mm × 13 mm × 2.5 mm ### Datasheet / official technical documentation ❗ Official DFRobot documentation: [https://wiki.dfrobot.com/SKU\_SEN0567\_Fermion\_MEMS\_NH3\_Sensor\_breakout](https://wiki.dfrobot.com/SKU_SEN0567_Fermion_MEMS_NH3_Sensor_breakout) ### Technical data ❗ Product type: Fermion MEMS NH3 gas detection sensor breakout Main specifications: - Gas detected: Ammonia / NH3 - Detection range: 1 ppm to 300 ppm - Operating voltage: 3.3 V to 5 V - Operating current: less than 20 mA - Output signal: Analog voltage - Load resistance: 4.7 kΩ - Sensitivity: R0 in air / Rs in 50 ppm NH3 ≥ 3 - Operating temperature: -10 °C to 50 °C - Operating humidity: 15% RH to 90% RH, non-condensing - Lifespan: at least 5 years in air - Dimensions: 13 mm × 13 mm × 2.5 mm - Application examples: ammonia leakage detection, aquaculture risk monitoring, cold storage, toilet odor monitoring, and other qualitative ammonia gas detection scenarios Important note: This is a gas-phase NH3 sensor. It is not a direct NH3/NH4+ water-quality probe. In aquaculture projects it should be used as an auxiliary gas/ammonia risk indicator, not as a laboratory-grade ammonia concentration measurement in water. ### Footprint Small breakout board with 2.54 mm header pins. No standard IC footprint applies. ### Type Breakout board, sub assembly, plug in module * * * Thank you. These four parts are needed for an IoT water quality and aquaculture monitoring project using DFRobot Gravity/Fermion sensors with an ESP32-S3 and an ADS1115 ADC.