1、The sonic intelligent technology possessed makes the accuracy of the ultrasonic level gauge up to 0.2%, which can resist various interference waves. 2、The circuit designed uses high-quality isolation modules and key components to select highly stable and reliable components, which can directly replace imported instruments. 3、It is safe, beautiful and has high waterproof grade. It adopts die-cast aluminum alloy for waterproof and protection grade IP67. 4、Low failure rate, easy installation and maintenance. 5、When the instrument is installed, the pot does not need to be cleaned and the normal operation of the product is not affected. The instrument provides two installation methods. Users can completely install and debug the instrument through the user manual. 6、Multiple protection, all input and output interfaces have anti-thunder, overcurrent and overvoltage protection functions. Item Type: Ultrasonic Level Meter Model: ALT-666 Dead Zone: 0.45m-0.6m Measurement Accuracy: 0.25% Ranging Resolution: 1mm Working Pressure: Atmospheric pressure Display: Comes with LCD display liquid level / display space distance Analog Output: 4-20mA Protection: Built-in anti-thunder devices and anti-short circuit devices Ambient Temperature: -20-60 ° C Protection Level: IP65 Application: Petroleum, environmental protection, chemical industry, industrial process control, etc. 1 x Ultrasonic Level Meter