each packed in small box lined with plastic bag,then boxes packed in cartons
HA series Digital Indoor Temperature and Hygrometer
1,Input:dual line displaying temperature and humidity at the same time,has temperature humidity sensor or can receive sensor signals,such as mV /mA /V /Pt/TC provided by user.Range of humidity:0-100%, Accuracy: 5%\3%\1% selectable,Range of temperature: -50—150C,Error:1C.
2,Output:isolated analogue output current 4-20mA or 20-4mA,range settable,2 alarm output either temperature or humidity selectbal,with high,low and intervals alarm mode selectable..
3,Isolated sensor power supply,output +12 or 5V/30mA.