Modbus-Enabled Hydrostatic Level Sensor for Foundation Pit Testing

• Customization: Available
• Type: Pressure Sensor
• Component: Integrated Design
• Model NO.: YTPA03
• For: Capacitive Pressure Transmitter
• Output Signal Type: Digital Type
• Production Process: Integrated Design with No Mechanical Moving Parts
• Material: Metal
• Wiring Type: Five-Wire
• Measuring Medium: Liquid
• IP Rating: IP68
• Accuracy: 0.015%F.S
• Housing Material: Aluminum Alloy (Gray)
• Communication Protocol: Modbus Protocol
• Output Signal: Digital Signal RS485
• Measuring Range: 50-2000mm
• Dimensions: 68*68*41.5mm
• Technical Solution: Differential Pressure
• Built-in Tilt Sensor: Accuracy 0.3°
• Transport Package: Airplane Box
• Specification: standard configuration
• Trademark: ThinkSonic
• Origin: China

Product Description

Product Introduction

The YTPA03 pressure hydrostatic leveling instrument is a high-precision measuring instrument that converts the pressure value at the measuring point into the liquid level value through a pressure sensor. By calculating the change in liquid level between the reference point and the observation point, the settlement amount is derived. The entire system consists of multiple hydrostatic leveling instruments, installation brackets, liquid storage tanks, liquid tubes, gas tubes, acquisition boxes, etc. It is mainly suitable for long-term high-frequency monitoring of vertical displacement between multiple points in geotechnical and structural safety engineering.

Main Components:

Exhaust Valve
Vent Port, Liquid Port
5-core Waterproof Aviation Connector
Intelligent Circuit Module
Sealed Aluminum Alloy Housing
Precision Pressure Core Body

The YTPA03 Pressure-type Static Level is constructed from aluminum alloy material. The instrument measures 68mm in length, 68mm in width, and 41.5mm in height. Its four top corners are curved surfaces formed by smooth arcs with flowing lines, which makes the device shell safe, shock-resistant, and free from sharp edges that could prick the hand. 

Product Features

Integrated design: No mechanical moving parts, compact structure, good sealing, ensures data stability.

Aluminum alloy shell: Industrial-grade material, oxidation treatment, oxidation and corrosion resistance.

Low-power design: Supports low power consumption, sustainable stable operation.

IP68 protection standard, excellent protection performance.

Industrial-grade process design: High tolerance internal structure, resistant to high/low temperatures, suitable for harsh environments.

Groove-type exhaust valve: Eliminates internal air bubbles without full unscrewing.

Built-in tilt sensor: Tilt detection function for better positioning judgment.

Specification

Parameter Name	Specification
Measurement Range	50–2000mm
Measurement Accuracy	0.01%FS
Minimum Acquisition Time	1s
Working Voltage	DC 5–36V
Power Consumption	Working Power Consumption: ≤0.05W,Sleep Power Consumption: ≤0.0064W
Electrical Connection	5 - pin Aviation Connector
Output Signal	Digital Signal RS485
Communication Protocol	Modbus Protocol
Baud Rate	Supports Baud Rate Range 2400~115200
Power - on Start - up Time	10s
Insulation Resistance	≥100MΩ
Operating Temperature	-40℃~80℃
Operating Humidity	5%–95%
Storage Temperature	0–50℃
Storage Humidity	20%–80%
Temperature Compensation	-20℃~70℃
Pressure Overload Capacity	≤1.2*FS
Built - in Tilt Sensor	Accuracy: 0.3°
Main Material	Aluminum Alloy (Gray)
Dimensions	68 x 68 x 41.5mm
Protection Grade	IP68
Installation Method	Assisted Installation with L - shaped Bracket

Measurement Accuracy: Refers to the deviation between the liquid level height data measured by the sensor and the actual liquid level height data.
Resolution: Refers to the minimum change value of the measured object that the sensor can detect and distinguish within the measurement range.
Storage Temperature and Humidity: The appropriate ambient temperature and humidity for daily storage. Long - term storage in such an environment will not affect the service life of the equipment.

Working Principle

The YPA03 Pressure-type Static Level consists of a liquid storage tank, bracket, connecting pipe, and other components. Based on the communicating vessels principle, a relatively stable reference point is set. When settlement occurs at a certain point, it will cause pressure changes at each point. By measuring the pressure changes of the sensor and converting them into liquid level changes, the elevation changes of each measuring point relative to the horizontal base point are calculated. 

Application Fields

Application Layout Simplified Diagram

Used for vertical displacement monitoring in large storage tanks, dams, high-rise buildings, foundation pits, tunnels, bridges, subways, etc.

Packing & Delivery

Company Profile

Xiamen Xinde loT Technology Co., Ltd.

Xiamen Xinde IoT Technology Co., Ltd. specializes in applied research of ultrasonic measurement technology. Its self-developed non-contact ultrasonic oil level monitoring products, exported globally, lead internationally in the field. With nationwide distributors, they're favored by high-end overseas clients. Holding multiple patents, the firm holds titles like "Technology Giant" and "National High-Tech Enterprise". Over 60% of staff focus on R&D, with core members boasting a decade+ industry experience—bolstering strong innovation capabilities.Trusted by users worldwide, it stands out for superior product quality and comprehensive technical services.

FAQ

Q1: What is your company's core business?

A: THINKSONIC TECHNOLOGY CO., LTD. specializes in R&D and manufacturing of precision sensors and IoT solutions. Our product lines cover:

- Automotive IoT: Ultrasonic level sensors, Vehicle Telematics Units, Active Safety Video Terminals

- Structural Monitoring: Settlement/inclination sensors, Hydrostatic level gauges, Strain/pressure gauges, Data loggers with wireless transmission.

Q2: Are you a manufacturer or trading company?

A: We are a manufacturer with in-house R&D center and production facilities in Xiamen, China. All products are independently designed and strictly quality-controlled.

Q3: What is your minimum order quantity (MOQ)?

A: Standard products start from 10 units. MOQ for customized items varies by project complexity - contact us for evaluation.

Q4: How long is your lead time?

A:Standard products: 15-30days after order confirmation. , a bit longer for customized products. But we are very flexible on the lead time, it will depend on the specific orders.

Q5:Can you customize products?

A:Yes. We offer: Logo printing; Packaging redesign; Technical parameter adjustments; Private labeling

Q6:Can I get samples?

A:We have to charge both samples and freight cost, and when you place orders, we'll refund your sample cost.

Q7:How to handle after-sales issues?

A:Our support includes: (1)Online troubleshooting (2)Technical documentation & video guides

Q8:How to visit your factory?

A: Welcome to schedule an audit: (1) Submit visit request via "Contact Supplier"  (2) We'll send official invitation letter within 48h   (3)Virtual factory tour available via video call