By 2022, Huadian Automation will have a large number of R&D personnel and engineers, and the total number of group employees will exceed 500. With the diversified market needs
In order to serve global customers, Huadian Automation has established and/or is preparing to establish offices in Singapore, Vietnam, Russia, Germany, Philippines, Malaysia, India and other places.
Huadian Automation continuously strives to establish close partnerships with companies around the world, integrating itself into the local innovation system while providing global technology innovation make a contribution.
With a customer-centric approach,Huadian Automation will continue to focus on process automation sensors and instruments and play an indispensable role in supporting the world's industries to become more intelligent and efficient. indispensable role.

Products Information
The steel ruler water level gauge provides the most accurate way to measure water level, used to measure the water level in wells, boreholes and water pipes, particularly suitable for the observation of groundwater level in hydropower projects and artificial inspection of dam body infiltration line. The instrument can be used during construction, but also as a longterm safety monitoring with the project,complies with earth dam safety monitoring technical specifications.

Working Principle:
Specification | 30 | 50 | 100 | 150 | 200 | 300 | 500 |
Measurement dept(m) | 0~30 | 0~50 | 0~100 | 0~150 | 0~200 | 0~300 | 0~500 |
Minimum reading(mm) | 1.0 | ||||||
Repetitive reading(mm) | ±2.0 | ||||||
Operating voltage (V) | DC=9V Battery |

Installation Guide
- When the probe contacts come into contact with the water, the sounder will sound, the indicator and the voltmeter pointer start to working. At this point should be slowly put steel ruler cable, in order to carefully find the pronunciation or indicate the exact location of the moment.
- 2.The accuracy of the reading depends on the timely determination of the buzzer and indicating the starting position.The accuracy of the measurement and the operator's proficiency should be repeated practice and operation.

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Q: Are you trading company or manufacturer ?
A: We are a manufacturer, committed to producing high accuracy, long-term stability, cost-efficient pressure/ level/ temperature measuring instruments.
Q: What's your quality control system?
A: All of our products are completed with temperature compensation and 48 hours aging test before shipment. And all of our products will be fully pre-inspection by QC departments before shipping to you . We have the certification of ISO,CE we could send the certification test of our company to you.
Q: What is the warranty of your products?
A: 2 years for level transmitter and pressure transmitter series others are 5 years from shipment date, for non-man-made damages.
Q: What is your shipping method?
A: Small orders are delivered with DHL, FedEx, TNT, UPS , EMS. Large orders are recommended to ship by sea.
Q: Do you provide samples ?
A: Yes,we have materials in stock to help you to get the samples as soon as we can.
Q: How long will you give me the reply?
A: We can support you 24Hours online service via email, skype, what'sapp, facebook etc within 1 hour.