Features: 1STABLE AND SMALL SIZE: The sensor adopt high accuracy temperature and humidity measurement unit, possess long term stability and small size 2WIDE USE RANGE: Using a dedicated analog circuit, the use range is wide, come with 10~30V wide voltage range power supply, very practical 3WALL MOUNT OR RAIL MOUNT: Temperature humidity transmitter is easy to install, can be wall mounted or rail mounted, possess high dust resistance 4LCD DISPLAY: Temperature humidity meter sensor have LCD liquid crystal display, beautiful and generous, clear to read, very convenient 5CONNECT TO ON SITE EQUIPMENT: Button can set parameters, easy to operate, using standard industrial interface 0~5V analog signal output, can be connected to on site digital display, PLC, inverter, industrial control host and other equipment, safe and reliable Package included: 2 x Screw 2 x Wall Plug 1 x Transmitter 1 x User Manual