Heat-Dissipation Type vs. Medium-Temperature Pressure Sensors：How to Choose the Best Fit？

When selecting a heat-dissipation type pressure sensor or a medium-temperature pressure sensor，key parameters such as 0-5V output and quick-connect interface design must be considered comprehensively。Whether it is an imported diffused silicon pressure sensor or a 316 material model，accurately matching application requirements such as dry gas or sprinkler trucks is essential。This article will analyze the core differences between absolute pressure types and sensors with display heads，helping you make an informed decision。

I. Definitions and Core Differences

Heat-dissipation type pressure sensors accelerate heat transfer through special design，making them suitable for measuring high-temperature media（such as thermal pipelines），with long-term stability as their core advantage。A typical product such as Domestic Weighing Sensor HDW803 Cantilever Beam Weighing Sensor Hopper Scale Shear Beam Force Sensor，uses alloy steel material，and its operating temperature can reach e-20℃～+65℃。Medium-temperature pressure sensors（such as imported diffused silicon pressure sensors）are optimized for 50℃～150℃ environments，making them more suitable for chemical，metallurgical and other applications。

II. Comparative Analysis of Technical Parameters

III. Guide to Industry Application Scenarios

For dry gas pressure monitoring，pressure sensors with display heads should be prioritized，as their visual management function can effectively prevent pipeline blockage。For sprinkler truck pressure sensors，an absolute pressure design is recommended，as its sealing performance can resist water vapor corrosion。In the oil and gas sector，316 pressure sensors are the preferred choice due to their corrosion resistance。

IV. Key Factors for Procurement Decisions

1. Environmental Compatibility：Choose heat-dissipation type sensors for high-temperature scenarios，and diffused silicon sensors for medium- and low-temperature applications
2. Output Requirements：0-5V pressure sensors are preferred for integration with control systems
3. Installation Constraints：Quick-connect pressure sensors are suitable for confined spaces
4. Certification Standards：Chemical applications require compliance with ATEX/CE certification

V. Clarification of Common Misconceptions

Misconception 1：Believing that all 316 stainless steel sensors are resistant to high temperatures。In fact，their performance is limited by sealing materials。Misconception 2：Ignoring the reference vacuum calibration requirements of absolute pressure sensors，resulting in measurement drift。It is recommended to refer to the temperature compensation technology of the HDW803 sensor，whose zero-point temperature effect is only ±0.02。

VI. Industry Trends and Innovation

In 2023，the sensor market showed a trend toward intelligent integration，for example，pressure sensors with display heads began integrating LoRa wireless transmission functions。In terms of accuracy，imported diffused silicon pressure sensors have achieved 0.1%FS stability，while domestic models such as HDW803 achieve an overall accuracy of grade 0.02 by optimizing the shear beam structure。

VII. Why Choose a Professional Supplier？

We provide full-scenario solutions：from waterproof designs dedicated to sprinkler trucks to explosion-proof certified products for chemical plants。Our technical team can customize heat-dissipation solutions according to your mechanical parameters（such as requirements above 20t measuring range），ensuring stable operation for more than 100,000 cycles like the HDW803 sensor。Contact us now to obtain a customized selection report！