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Free samples are available, pls feel free to contact us to get them.

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Generally, it will take 7 to 10 working days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.

Factory Price Nylon 1/2" Liquid Flow Sensor for Boiler Water Feed NPN Square Wave

Name: Factory Price Nylon 1/2" Liquid Flow Sensor for Boiler Water Feed NPN Square Wave
Brand: Foshan Shunde Saier Sensor Co., Ltd.
SKU: 2279177455

Guangdong, ChinaFoshan Shunde Saier Sensor Co., Ltd.

US$4.20

500-999 Pieces

US$4.00

1,000-4,999 Pieces

US$3.60

5,000-49,999 Pieces

US$3.20

50,000+ Pieces

Product profile

Customization

Available

Type

Water Flow Sensor

Structure Type

Straight

Model NO.

SEN-HZ21TB

Measuring Medium

Liquid

Output Signal Type

Square Pulse Signal

Material

Plastic

Accuracy Grade

+/-10%

Certification

Customized

Non-Customized

Voltage

DC3V, DC5V, DC24V

Current

≤10mA,DC5V

Flow Range

1-20L/Min

Instantaneous Flow Characteristics

F=10q+/-10%

Length of Wire

350mm

Terminal Model

Size

1/2"Male to Male, DN15

Transport Package

Inner Poly Bag, Outer Yellow Carton

Specification

SEN-HZ21TB

Trademark

SAIER

Origin

China

HS Code

9026100000

Key features

Stainless Steel Shaft Impeller: Equipped with stainless steel shaft for powerful performance and prolonged service life.

Leak-Proof Sealing Design: Upper and lower force structure sealing ring ensures zero leakage.

Imported Hall Element: Water-isolated imported Hall element prevents water ingress and aging.

Wide Voltage Range: Supports DC 3V, 5V, and 24V with customizable contact capacity.

ROHS Compliant Materials: All raw materials comply with ROHS testing standards.

Plug and Play Installation: Lightweight and flexible design allows for easy plug and play installation.

High Production Capacity: Factory capable of manufacturing up to 15,000 pieces per day.

ISO 9001:2015 Certified: Strict quality control system following ISO9001:2015 standards.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceYears of Export ExperienceFull Customization

Foshan Shunde Saier Sensor Co., Ltd.

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 14 years CertifiedNearest Port: Guangzhou Port, Shenzhen Port.Average Response Time: ≤1.92h

AI-Powered supplier vetting

SummaryFOSHAN SHUNDE SAIER SENSOR CO., LTD. demonstrates broad customization, ODM, recent product development, OEM service for well-known brands, and documented quality and corrective-action procedures. It holds ISO9001:2015 and CE certifications and has 14 years of export experience. However, it reports no valid manufacturing-capacity contract with related subcontractors, no inventory, overseas warehouse, overseas branch, or offline trade-show capability. Financial information is represented only by years, so financial credibility cannot be assessed. Customer evidence is mixed: the supplier reports OEM work for well-known brands but no Fortune 500 cooperation, while repeat-buyer preference is stated at 50%–80%.

Supplier typeThe supplier is identified as FOSHAN SHUNDE SAIER SENSOR CO., LTD. and offers OEM and ODM services, with a listed float sensor product. Its export history is stated as 14 years, but the registration month shown is April 2025, and the provided data does not clarify the relationship between registration timing and operating history.

CertificationsThe supplier reports an ISO9001:2015 management-system certificate and CE product compliance certification. These are explicit certifications supporting quality-management and product-compliance capability.

After-Sales capabilityThe supplier has documented procedures and records for handling customer complaints, corrective and preventive actions, and service-capability assessment. This supports a structured after-sales and issue-resolution process, although no specific response-time or warranty terms are provided.

R&D capabilityThe supplier states that it had new products during the past year and provides ODM services, indicating product-development and original-design capability. However, it reports no available SDK, which limits evidence of software or development-interface capability.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. It also provides ODM services, indicating broad ability to support customized product development.

Client casesThe supplier reports OEM services for well-known brands, providing positive customer-case evidence, but states that it has not collaborated with Fortune 500 companies. The reported repeat-buyer preference of 50%–80% suggests some recurring demand, though the customer identities and project details are not provided.

Product Q&A

Q:Can I visit Saier factory?

My dear, it is a great honor to invite you to visit our factory. Close to 105 highway road and Guangzhou Zhuhai west, less than 30 minutes by car from Guangzhou, Zhongshan, Foshan. It will take about 1 to 1.5 hours by bus from Guangzhou city to our factory. We can arrange our driver to pick you up from your hotel when you arrived in Guangzhou.

Q:Can your factory print our brand on the product?

Our factory can laser print customer's logo on the product with the permission from customers. Customers need to provide us a logo usage authorization letter to allow us to print customer's logo on the products.

Q:Does your factory have the design and development capabilities, we need the customized products?

Of course, the staffs in our design department are well experienced in the flow meter area, with more than 10 years experience. Every year, we will launch about 20 to 30 new series to keep our customers in a competitive stage. We can make customized products especially for you. Please kindly contact us for more update sinks details.

Q:How is your factory production capability?

We can manufacture products up to 15000 pcs per day.

Q:How is the price?

As we are the factory, directly sales, we can offer the best and competitive price for you.