... \4mA~20Ma\0~10VDC 4,we are the manufacturer PSWT000X temperature transmitter for water pipe used for measuring liquid temp. Inside the ... for fear of damage.2. During installation and replacement of transmitter, be sure to shut off the power, before that, finish ... PamaintenanceSuggesting calibration after one year’ s useshellABS engineering plastic Pswt000x Temperature Transmitter for Water Pipe