Vanhe Instruments, with 10 years of experience in the research and development and production of groundwater level measurement systems, stood out among numerous suppliers and established a long-term cooperative relationship with the Guizhou Geological and Mineral Bureau.
22
2020
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12
Faced with challenges such as high pressure, corrosion, and signal attenuation in deep well monitoring, the WH311 groundwater level automatic monitoring instrument, with its technological advantages, became the core equipment for a pumping test in a 640-meter deep well. Its sensor uses a fully sealed stainless steel welding process, with a protection level of IP68, capable of long-term resistance to 85℃ liquid environments. At the same time, it integrates digital temperature compensation technology to ensure the accuracy of the 15.2℃ water temperature data.
20
2025
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02
In the recently completed 640-meter deep well monitoring project, the WH311 groundwater level automatic monitoring instrument demonstrated its intelligent control capabilities. The device has built-in high and low water level alarm functions. When the water level is abnormal, it automatically triggers the pump stop protection to prevent the deep well pump from running dry. Combined with the wireless transmission module, alarm information can be pushed in real time to the manager's mobile terminal.
20
2025
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02
The WH311 incorporates a high-strength, high-pressure sensor chip. It calculates water level using the hydrostatic pressure principle (P=ρgh), with a measurement range of 0-1000 meters and a pressure resistance tested to 2000 meters of water pressure. The integrated stainless steel sealed structure ensures long-term stability79. Paired with the dedicated WH6 display recorder, it automatically records data at a frequency of 1 minute/time, supporting 365 days of continuous storage. The wireless transmission system transmits the signal remotely to a control center 5000 meters away, with an accuracy error of only 1cm.
20
2025
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02
WH311 Groundwater Level Monitoring Instrument | High-Precision Liquid Level Monitoring Solution
The WH311 reservoir water level tester, produced by Shenzhen Dongfang Wanhe Instrument Co., Ltd., adopts an all-stainless steel laser welding structure, which has excellent moisture-proof performance and medium compatibility, and is suitable for long-term stable operation in complex environments. It is equipped with an original chip amplifier circuit from Texas Instruments (TI) in the United States, which significantly improves the stability of the sensor signal and overcomes the problem of signal attenuation caused by water depth. All-stainless steel laser welding structure: Ensures the equipment's long-term stable operation in humid and corrosive environments, compatible with various media.
18
2025
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03
WH311 Reservoir Water Level Tester: Precise Monitoring, Reliable Choice
Shenzhen Dongfang Wanhe Instrument Co., Ltd.'s WH311 groundwater level tester is designed for high-end water level monitoring needs. It integrates multiple core technologies to provide engineers with an excellent liquid level measurement solution. All stainless steel laser welding structure: ensures the equipment operates stably for a long time in humid and corrosive environments, compatible with various media.
18
2025
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03
WH311 fire water tank (pool) level indicator inspection basis: GB 4793.1-2007 Safety of electrical equipment for measurement, control, and laboratory use. Inspection items: Mechanical impact and collision test, temperature test...
07
2018
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05
Shenzhen Dongfang Wanhe Instrument Co., Ltd.
Hotline:
4006-033-013
E-mail: dongfangyibiao@163.com
Address: 6th Floor, Tairan 213 Industrial Factory Building, Chegongmiao Industrial Zone, Futian District, Shenzhen