liquid:one:0~3g cm3 middle quantum is optional Combined precision:0.001 g cm3 Output re system 4~20Ma Power:12~45VDC, recommends using 24VDC Reveal:4 and a half digital display Definition:0.0005 g cm3 Ambient temperature:-30~150 is available Humidity range:0-90% The ambient temperature of medium:0-100