Working power supply
AC/DC dual-use
DC power supply
Built in maintenance free 6V/4AH battery
Overall dimensions
242*185*164
display
6-digit 0.8 inch digital tube, 10 status indicators
Battery working time
40 hours (typical value, continuous use after full charge)
Input signal range
-18 mV ~28mV
signal source
1~4 analog sensors (four wire system)