Powered by Made-in-China.com

Essential Dissolved Oxygen Sensor for Water Quality 0-20mg/L Range
US$188.00
1-99 Pieces
US$182.00
100-499 Pieces
US$176.00
500+ Pieces
Product profile
Customization
AvailableAfter-sales Service
AvaliableWarranty
1 YearModel NO.
RK500-04BPortable
PortableCertification
CEType
Dissolved Oxygen SensorRange
0-20mg/L 0-50mg/LAccuracy
0.2mg/LResolution
0.01mg/LSupply
7-30VDCOutput
RS485 & 4-20mA at The Same TimeCable Length
5mRepeatability
0.05mg/LResponse Time
T90<40sStability
Drift <0.2mg/L/YearMaterial
All Stainless Steel 316LPrinciple
FluorescentTransport Package
1 Piece Per BoxSpecification
16*125mmTrademark
RikaOrigin
ChinaProduction Capacity
10000PC/MonthKey features
Fluorescent Sensing Principle: Uses high-performance oxygen membrane for quick response and high accuracy.
Dual Output Capability: Simultaneously provides RS485 and 4-20mA output signals.
All Stainless Steel 316L: Constructed with all stainless steel 316L for strong anti-corrosion.
IP68 Waterproof Rating: Fully waterproof and dustproof for direct submersion in liquid.
Wide Application Range: Suitable for aquaculture, sewage treatment, and industrial wastewater.
Customizable Cable Length: Default 5m cable with other lengths available upon customization.
1-Year Warranty Coverage: Includes 18-month quality guarantee and free exchange within one month.
OEM Service Available: Logo design services available with a minimum order of 10 pcs.
Company profile
CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs CertifiedExport Year: 10 Years CertifiedNearest Port: Shenzhen Port,Guangzhou Port.Average Response Time: ≤2.78h
AI-Powered supplier vetting
SummaryHUNAN RIKA ELECTRONIC TECH CO., LTD. demonstrates established export activity, documented quality management, customization and R&D capabilities, and experience supplying products internationally. It reports ISO9001:2015 certification, 11 years of total R&D engineer experience, 11–20 quality-control staff, five production lines, ODM/OEM services, SDK availability, and new products developed within the past year. The supplier has exported for eight years and states that products have reached more than 100 countries and regions. Its service processes include written procedures, records, inspection instructions, and corrective/preventive action procedures. However, it does not provide 3D software design services, has no overseas warehouse or showroom, and lacks a valid contract with related subcontractors for manufacturing capacity. Financial information is present but is not assessed here because monetary figures are excluded.
Supplier typeThe supplier is identified as HUNAN RIKA ELECTRONIC TECH CO., LTD. Its stated business scope includes electronic product sales, energy-storage and solar-power technology services, agricultural management, and import/export activities; the investigated product is a paste-type temperature sensor.
CertificationsThe supplier explicitly reports holding an ISO9001:2015 certificate. This provides direct evidence of a certified quality-management system, although no other certifications are identified in the provided slices.
After-Sales capabilityThe supplier states that it provides after-sales service and technical support, while service capability is supported by written procedures, followed records, approved-supplier controls, and corrective/preventive-action procedures. It also reports no overseas warehouse or overseas showroom, which limits localized overseas service infrastructure.
R&D capabilityThe supplier reports 11 years of total R&D engineer experience, new products within the past year, ODM capability, OEM service for known brands, and an available SDK. These are direct indicators of active product development and technical integration capability.
Production capacityThe supplier operates five production lines, has 11–20 quality-control staff, maintains uniformly followed finished-product inspection instructions, and reports in-stock capability. However, it has no valid contract with related subcontractors for manufacturing capacity, so subcontracting governance is a stated weakness.
Customization capabilityThe supplier explicitly offers customization from samples, designs, full customization, minor customization, and flexible customization, in addition to ODM and OEM services. It does not provide 3D software design services, but this limitation does not negate the broad stated customization scope.
Client casesThe supplier states that its products have been exported to more than 100 countries and regions, including Germany, Spain, Russia, Malaysia, Thailand, Japan, South Korea, and India. One associated buyer, MEATECH SOLUTIONS LLP, is listed for the investigated temperature sensor; no broader customer project details or independently verified case studies are provided.
Product Q&A
Q:Are you the final manufacturer?
A:
Yes, we're a SENSOR manufacturer and exporter in China, SGS certified, with 10+ years of experience.
Q:Do you offer OEM service?
A:
Yes, OEM services are available. We design logos; minimum order: 10 pcs.
Q:Do you offer free samples?
A:
No, free samples are not available.
Q:What payment methods do you accept?
A:
We accept T/T, PayPal, and Western Union.
Q:What is your delivery time?
A:
Delivery is 6-8 days post-payment. Orders over 100 pcs need an extra 3-5 days.
Send Inquiry
*To:
Hunan Rika Electronic Tech Co., Ltd.
Hunan Rika Electronic Tech Co., Ltd.*Content:
Supplier replies will be sent to your registered email
You may also like
Advanced Electrochemical Oxygen Sensor for Reliable Water Quality Monitoring
US$93.40-207.60
1 Piece(MOQ)
Smart High Temperature Dissolved Oxygen Fermentation Sensor for Optimal Yeast Activity
US$599.00-999.00
1 Piece(MOQ)
Dissolved Oxygen Sensor Water Quality Tester DO Electrode Built-in Salinity Compensation IP68 Probe
US$59.00-239.00
1 Piece(MOQ)
Rk500-04 Optical Fluorescence RS485 0-20mg/L Dissolved Oxygen Sensor for Aquaculture
US$168.00-212.00
1 Piece(MOQ)
Renke RS485 Optical Fluorescent Do Dissolved Oxygen Probe Sensor for Aquaculture Shrimp Farm
US$80.00-84.00
1 Piece(MOQ)
Gaimc Online Type 4-20mA High Accuracy Dissolved Oxygen Sensor for All Kinds of Water Quality Testing
US$305.00-489.00
1 Set(MOQ)
Digital Residual Chlorine Sensor for Pool Water Quality Monitoring Ns-Cl128
US$300.00-400.00
1 Piece(MOQ)
Fluorescence Dissolved Oxygen Sensor RS485 Optical DO Sensor
US$650.00-750.00
1 Piece(MOQ)
pH Dissolved Oxygen Sensor for Accurate Water Quality Monitoring IP68
US$93.40-192.80
2 Pieces(MOQ)
Boqu Ms-301 RS485 Multiparameter Aqua Sonde Depth Ammonia Dissolved Oxygen Oh Conductivity Data Record Water Sensor
US$1,000.00-9,999.00
1 Piece(MOQ)
Digital Optical Dissolved Oxygen Sensor Do Probe RS485 Fluorescence Do Sensor for Aquaculture
US$369.99-399.99
1 pieces(MOQ)
Portable Do Meter RS485 Digital Optical Water Dissolved Oxygen Sensor for Aquarium
US$80.00-84.00
1 Piece(MOQ)



















