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Pool Controller and SPA Controller Free Chlorine Sensor Modbus RTU RS485 Iot Solution
US$569.00
1-4 Pieces
US$499.00
5+ Pieces
Product profile
Customization
AvailableAfter-sales Service
ProvidedWarranty
ProvidedModel NO.
BH-485-CLRange
0-20ppmResolution
0.1mg/LPower
12-24VDCAccuracy
<+/-2% 25 DegreeResponse Time
<60s (90% Right Value)Communication
Standard RS485 ModbusTemperature Compensation
PT1000Protection Grade
IP68Transport Package
Carton BoxSpecification
46*45*106cmTrademark
BOQUOrigin
Shanghai, ChinaHS Code
90278099Production Capacity
1500PCS/MonthKey features
Non-Membrane Design: Adopts advanced non-membrane constant voltage technology, eliminating the need for diaphragm and reagent changes.
High Precision Accuracy: Ensures accurate measurement with an accuracy of +/-1% or +/-0.01 mg/L and a measuring range of 0-20.00 mg/L.
Fast Response Time: Delivers rapid results with a response time of less than 60 seconds for 90% of the right value.
IP68 Waterproof Grade: Features IP68 protection grade, ensuring durability and stability in various water quality monitoring environments.
RS485 Modbus RTU: Supports standard RS485 Modbus communication for easy integration with PLCs, computers, and IoT systems.
OEM/ODM Support: Provides OEM and ODM services backed by 20+ years of R&D experience and 50+ technical patents.
Company profile

CertifiedBusiness Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2014-01-06 CertifiedNearest Port: Shanghai PortAverage Response Time: ≤7.66h CertifiedTerms of Payment: LC, T/T, D/P, etc.
AI-Powered supplier vetting
SummaryShanghai Boqu Instrument Co., Ltd. is identified as a China-based manufacturer established in 2007, with 111 employees and operations in Pudong, Shanghai. It produces electrochemical instrumentation and electrodes, including pH, conductivity, dissolved oxygen, turbidity, ion concentration, and flow-measurement products. The supplier reports ISO9001:2015 and ISO14001:2015 certifications, two production lines, a 1,368 m² manufacturing plant, ten years of R&D engineer experience, and six to ten quality-control staff. Its export activity began in 2014, with exports representing 21%–30% of sales. The company states that it provides after-sales service and uses advanced technology and equipment, but the slices do not provide measurable service performance, innovation outputs, customization evidence, or detailed customer case results.
Supplier typeThe supplier is classified as a manufacturer and is described as a professional manufacturer of electrochemical instrumentation and electrodes with R&D, production, and sales capabilities. Its registered address and factory location are both in Pudong, Shanghai, China.
CertificationsThe supplier reports holding ISO9001:2015 and ISO14001:2015 management-system certificates. These explicitly support quality-management and environmental-management certification, although certificate scope or validity details are not provided.
After-Sales capabilityThe company explicitly states that it focuses on after-sales service and offers “perfect after-sales service,” and claims this has helped earn customer and partner trust. However, no service-team size, response-time data, warranty terms, or service records are provided.
Production capacityThe supplier reports a manufacturing plant of 1,368 m², two production lines, six to ten quality-control staff, and ten years of R&D engineer experience. Its product range covers multiple electrochemical instruments and sensors, and it is identified as the manufacturer of listed BOQU products, providing explicit evidence of production capability.
Product Q&A
Q:What is the measuring range and accuracy of the sensor?
A:
The measuring range is 0-20.00 mg/L (ppm) with an accuracy of +/-1% or +/-0.01 mg/L.
Q:Does the sensor require regular maintenance of membranes or reagents?
A:
No, it adopts advanced non-membrane constant voltage technology, so there is no need to change diaphragms or medicine.
Q:What communication protocols are supported?
A:
It supports standard RS485 Modbus RTU communication, allowing direct connection to PLCs and computers for data collection.
Q:What is the response time of the digital residual chlorine sensor?
A:
The response time is less than 60 seconds for 90% of the right value.
Q:What is the power supply requirement for this sensor?
A:
The sensor requires a DC power supply of 12V-24V.
Send Inquiry
*To:
Shanghai Boqu Instrument Co., Ltd.
Shanghai Boqu Instrument Co., Ltd.*Content:
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