testo 6381压差变送器具有同时计算体积流量和流速的优势。配备温湿度探头后，这款变送器也可以进行温度和湿度测量。

testo 6383变送器，采用平板式设计，因此非常适用于洁净室，这款变送器同时具有湿度和温度的监控功能（选配探头）。

testo 6651温湿度变送器，用于环境测量，精度&plusmn;1.7%RH（取决于探头），可选信号输出种类，可选自带显示器，以太网模块，继电器，2路模拟信号输出。

testo 6681溫濕度變送器，精度&plusmn;1.0%RH（取決於探頭），可選信號輸出種類，可選自帶顯示器，乙太網模組和Profibus模組，可選所有濕度相關單位，可選繼電器，可選第3路類比信號輸出。&nbsp;

The testo 6605 temperature and humidity probe is equipped with a high-precision, long-term stable humidity sensor from Testo and delivers precise measurement results.

The testo 6612 temperature and humidity probe is designed for measurements in air conditioning ducts.

The testo 6613 temperature and humidity probe is designed for measurements in processes that are difficult to access.

The testo 6615 temperature and humidity probe is designed for measurements in trace humidity applications. The automatic self-adjustment procedure corrects the measurement uncertainties that traditionally occur when measuring humidity in the lowest humidity ranges - so you benefit from extremely accurate measurement results.

The testo 6617 temperature and humidity probe is designed for measurements in environments with aggressive media. With the built-in self-monitoring function, you can prevent faulty measurements or measurement interruptions – because it detects signs of corrosion at an early stage, thus the probe can be replaced in good time.

The pressure-tight screw connection (stainless steel) with G1/2" thread and PTFE ring is ideal for mounting your temperature and humidity probe in the process. The PTFE clamping ring enables quick mounting and holds the probe securely in place, and can be removed without leaving any residue after use.

Pressure-tight screw connection with PTFE ring

Pressure-tight screw connection with PTFE ring