中文介绍：
WRE-440A双支铂热电阻是一款专为室内温度测量设计的精密传感设备，采用铂金属材料作为核心感应元件，凭借其优质的物理特性和稳定的电气性能，成为工业自动化、环境监测、智能建筑等领域的理想选择。产品采用双层独立感温结构设计，通过双支铂电阻体的创新布局，有效提升测量数据的冗余性和系统可靠性，特别适用于需要数据备份或双通道温度监控的应用场景。
本产品采用全密封式不锈钢壳体设计，表面经过特殊防腐蚀处理，确保在潮湿、粉尘等复杂室内环境中长期稳定工作。感温元件与保护管之间填充高纯度氧化镁粉末，通过高温烧结工艺实现优异的导热性能和机械保护。响应时间短至<3秒（视介质流速而定），可在动态温度变化中快速捕捉真实温度值。工作温度范围覆盖-50℃至+300℃，线性精度达到±0.15%FS，满足大多数室内场景的精准测量需求。
在智能化应用方面，WRE-440A支持多种信号输出形式，可与PLC、DCS等控制系统无缝对接。人性化的接线盒设计采用防呆接口和双通道独立标识，支持现场快速安装维护。产品经过严格的老化测试和温度循环试验，在长期连续工作中仍能保持±0.1℃/年的稳定性指标。针对不同安装需求，提供螺纹固定、法兰连接、壁挂嵌入等多种安装方式，适配各类管道、容器及设备表面测温。
典型应用包括暖通空调系统温度监测、实验室恒温控制、食品加工设备温度保护、仓储环境温度记录等场景。通过优化元件封装工艺，产品有效抑制电磁干扰对测量信号的影响，在变频设备密集的工业现场仍能保持信号纯净度。维护周期建议为2年/次，日常仅需进行表面清洁和接线检查即可保持最佳工作状态。
英文介绍：
The WRE-440A Dual-element Platinum RTD is a precision temperature sensing device specifically engineered for indoor measurement applications. Utilizing platinum as the core sensing material, this product delivers exceptional measurement stability and repeatability, making it an optimal solution for industrial automation, environmental monitoring, and smart building management systems.
Featuring a dual-element independent sensing structure, the device provides redundant temperature measurement channels through innovative platinum resistor configuration. This design significantly enhances system reliability, particularly suitable for applications requiring data redundancy or dual-channel temperature monitoring. The hermetically sealed stainless steel housing with anti-corrosion surface treatment ensures long-term stability in challenging indoor environments exposed to humidity or particulate matter.
The sensing assembly employs high-purity magnesium oxide insulation combined with advanced sintering technology, achieving fast thermal response (<3s subject to medium flow) and robust mechanical protection. With an operational range of -50℃ to +300℃ and linear accuracy of ±0.15%FS, it meets rigorous measurement requirements for most indoor applications. The optimized signal transmission system maintains measurement integrity even in electromagnetically noisy environments typical of industrial settings.
Installation flexibility is ensured through multiple mounting options including threaded connection, flange mounting, and surface embedding. The user-friendly junction box features foolproof connectors and clearly labeled dual-channel terminals, enabling quick field installation and maintenance. Comprehensive aging tests and thermal cycling evaluations guarantee long-term stability within ±0.1℃/year drift specification.
This device finds typical applications in HVAC system monitoring, laboratory temperature control, food processing equipment protection, and warehouse environment logging. Compatible with major PLC and DCS systems through configurable output signals, it supports seamless integration into automated control networks. Recommended maintenance involves biennial inspection with routine surface cleaning and connection checks to ensure optimal performance throughout its service life.
