Welcome friend~ QDL80A temperature sensor No display type Default thread size M20*1.5 ( if you need other thread size,G1/2 ,G1/4,G1/8,1/4NPT pls contact us,tks) Default probe diameter: 6mm ( if you need 10mm, pls contact us,tks) Material: SS304 power supply : DC24V Note: Pls let me know the probe diameter,probe lengh,thread size before ordering.TKS This PT100 temperature transmitter adopts thermocouple or resistance as the temperature measuring element it is normally matched with display,recording and regulating instrument to measure the temperature (from -50 to 250 Centigrade)of liquid,steam,gas and solid during various production process. The thermocouple (resistance) measure the changes of thermal power (resistance) when working,which will produce unbalance signal through the temperature transducer's bridge,and the signal will be amplified and converted into 4-20mA DC signal to the instrument,then the instrument will display the corresponding temperature value. It can be widely used in automation temperature control system,such as metallurgy,machinery,petroleum,electricity chemical industry,light industry,textile,building materials and so on.