Mainly provide gage/abosulte pressure transmitter, differential pressure sensor and oem pressure sensor for any measurements.Detail
Using high quality water level sensors for level monitoring.Detail
Mainly provide electromagnetic flowmeters, ultrasonic flow meter, turbine flow meter for water flow measurement.Detail
Temperature sensor for medium temperature measurement.Detail
Abstract A blind zone exists directly in front of the sensor. It is the range in front of the sensor where objects cannot be reliably detected, or where an unstable output would occur. As we may know that when we selecting or using ultrasonic level sensors, blind area is a crucial parameter. The blind area of ultrasonic level sensors varies among different products and suppliers and it affects measurement effects. Why Do Ultrasonic Level Meters Have Blind Areas? Ultrasonic level transmitters have blind spots caused by factors like beam divergence, reflections from surfaces, signal interference, and acoustic impedance differences in the environment being measured. Besides, physical conditions like temperature, air pressure, and relative humidity can also exert effects on ultrasonic waves. Higher temperatures and humidity lead to greater sound wave attenuation, consequently reducing the detection area of the sensor. In situations of low relative humidity and cold temperatures, sound wave attenuation in the air decreases, resulting in an expansion of the sensor’s detection area. What is the impact of blind area on ultrasonic liquid level measurement? Blind area can affect ultrasonic liquid level measurement in several ways: Inaccurate Readings: When the ultrasonic waves encounter an obstacle or surface within the...view more
Holykell invites you to Sensors EXPO 2023view more
Welcome to Holykell - Where Innovation Meets Precision!
As a premier high-tech enterprise, we specialize in crafting industrial measuring instruments including pressure sensors, level sensors, flow meters, and temperature sensors. All will elevate your operations to new heights.
Why choose Holykell? Our track record speaks for itself:
♦The only Alibaba 5-star supplier in the industry
♦5000m2 clean workshop
♦5 advanced production lines
♦120,000+ production capacity
♦On-time delivery ＞99.8%
♦Manufacturing return rate ＜0.05%
♦11 staff R&D team
Experience the expertise of our formidable R&D team and take advantage of our OEM/ODM service. We boast an impressive 20+ patents and hold 18+ quality certifications (CE, ATEX, FCC, ROHS, etc.), and are approved by SGS, TUV, ISO9001, ISO45001, ISO14001, etc.
With export experience to 175+ countries and 30,000+ one-stop solutions under our belt, trust Holykell to be your reliable partner in progress. Join us on this exhilarating journey of innovation, where your success is our ultimate mission. Let Holykell empower your success today!
Firstly, with over 20 years experience, we’ve provided over 30,000 solutions for over 30,000 customers from 175 countries. We proudly hold the distinguished title of being the only Five Star Seller on Alibaba within our industry.
Secondly, our commitment to innovation is evident through our dedicated in-house R&D center, comprising a team of over 20 skilled researchers. With an annual investment of USD 600,000, we continuously strive to develop cutting-edge sensors. Furthermore, our advanced production facilities enable us to manufacture up to 10,000 pressure sensors and submersible level sensors per month.
Additionally, we take pride in providing comprehensive one-stop solutions for all your project requirements. From concept to completion, our team is equipped to handle every aspect, ensuring a seamless experience for our valued clients.
Yes, Holykell complies with industry standards and certifications for its products.
We adhere to relevant international standards and regulations to ensure the quality and reliability of the sensing solutions. Our products undergo rigorous tests and evaluation processes to meet or exceed industry standards.
We have passed:
International factory inspections: TUV, SGS;
Quality certifications: ISO9001:2015, ISO14001:2015 and ISO45001:2018;
Product related certifications: TUV issued CE, RoHS, ATEX, FCC, TUV, IECEX
Besides, we have obtained over 20 patents. Holykell is one of the China manufacturers that has the most certificates in measurement industry. Refer to our CERTIFICATES page for more details.
Yes, Holykell offers product warranties and guarantees.
The specific warranty terms and durations may vary depending on the product type and model.
Generally, the warranty for pressure sensors is 18 months, 12 months for level sensors and flow meters. Refer to WARRANTY for more details.
Yes, Holykell's sensing solutions are designed to be compatible with existing systems and equipment. We understand the importance of seamless integration and offer products that can be easily integrated into a wide range of industrial processes and control systems, data acquisition systems, programmable logic controllers (PLCs), and other equipment commonly used in industries.
One senior engineer for one Customer full support and after-sales service
Datasheet, Manual, Warranty card downloads here.
Latest products catalog, you can subscribe our latest catalog.
To develop the market, the company recruits agents for a long time.