#### Company Profile:  

**Shenzhen Haohua Electric Co., Ltd.** operates under the brand name **Huati Instruments**. Established in 2006, Huati Instruments is a high-tech enterprise specializing in the independent research, development, production, and sales of various sensors and automated testing equipment. With over 12 years of experience, the company focuses on manufacturing and developing a wide range of products, including pressure sensors, liquid level sensors, temperature and humidity sensors, digital pressure switches, digital pressure gauges, intelligent control instruments, transmitters, and custom testing equipment. These products are widely used in industries such as petroleum, chemical, metallurgy, power, environmental protection, metrology, IoT, smart manufacturing, AI, and automation control engineering. Huati Instruments offers a comprehensive product line with stable performance, supporting OEM and ODM services, and can customize non-standard products according to customer requirements.  

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### Product Overview  

The sensor features a **PTFE housing** made of cast aluminum and a **diaphragm** made of 316 stainless steel or ceramic. It uses gas-conducting cables and waterproof, oil-resistant cables that are non-corrosive to various media, enhancing outdoor waterproof performance. The product supports customizable output signals to meet various working conditions, offering a wide range of functions and types. It is easy to install and provides stable and reliable performance.  

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### Product Features  

1. **Adjustable parameters**: Simple design and easy installation.  

2. **Digital signal processing**: Utilizes microcomputer technology for high-precision measurement.  

3. **Anti-electromagnetic interference design**: Suitable for harsh environments.  

4. **High thermal stability**: Performs well in high-temperature environments, ideal for monitoring and controlling corrosive gases, liquid levels, steam, gauge pressure, absolute pressure, and negative pressure.  

5. **Customizable design**: Supports triple lightning protection, anti-interference, and anti-condensation processes.  

6. **High precision and reliability**: Accuracy up to ±0.1% FS with stable performance.  

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### Product Selling Points  

- **Simple design**: Compact size and easy installation, suitable for various scenarios.  

- **Excellent protection**: Waterproof, oil-resistant, and corrosion-resistant, suitable for harsh environments.  

- **Ultra-low power consumption and long lifespan**: Energy-efficient and ideal for long-term use.  

- **High thermal stability**: Maintains high-precision measurement even in high-temperature environments.  

- **Diverse options**: Offers ceramic core and diffusion silicon core options, with customizable interfaces to meet different working conditions.  

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### Technical Parameters (All specifications can be customized as needed)  

- **Product Model**: Electronic digital display pressure/liquid level/temperature sensor (HPC series).  

- **Range**:  

  - Pressure: 0~250 MPa  

  - Temperature: -100~400°C  

  - Liquid level: 0~300 meters (any interval within these ranges can be customized).  

- **Accuracy**: ±0.1%~0.5% FS.  

- **Alarm Height**: 2.0±0.5 mm.  

- **Output Signal**: 4~20 mA, RS485.  

- **Communication**: NB-IoT / LoRa / LoRaWAN.  

- **Power Supply**: 3.6V DC (19Ah battery-powered).  

- **Housing Material**: ABS flame-retardant material; cast aluminum; stainless steel 316/304.  

- **Operating Temperature**: -20~65°C.  

- **Sealing Method**: Epoxy resin injection.  

- **Humidity**: 20-90% RH (non-condensing).  

- **Protection Rating**: IP65.  

- **Installation**: Wall-mounted or ground-mounted with expansion screws.  

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This product is designed to provide high precision, reliability, and adaptability for a wide range of industrial and environmental applications. For more information or customized solutions, please contact Huati Instruments!