The DO7 digital micro ohmmeter is a practical instrument for low resistance measurement, ideal for utilities use in the workshop, field or test facilities. It is of rugged construction, contained in a sealed ABS plastic case with lid and carrying handle.

The DO7 digital micro ohmmeter has many advanced features. Rechargeable batteries means real portability with more than 40 minutes of cumulative operation on the lowest ranges, and over 12 hours on all others. The internal charger will boost charge to 90% of full charge, switching automatically to a trickle maintenance charge. Warning LEDs illuminate when an open circuit lead condition is detected.

Measurement	4 Terminal Kelvin/Thomson principle eliminates error due to lead resistance. Open circuit measurement voltage~2V dc
Display	0.8" LED 6,000 count with automatic decimal point and polarity indication
Ranges	6 push button selected with LED indication
Calibration	Digital, security key protected
Battery	Sealed lead acid, rechargeable cells. Internal charger with battery state indicator
Terminals	6mm binding posts accept spade tags and 4mm banana plugs
Working Temp	0...40°C rel. humidity 80% max. non-condensing
Storage Temp	-20...+50°C
Mains Supply	100/120/220/240 Volts +10% -13% 47Þ63Hz 20VA
Safety	IEC 1010 Protective Class 1
EMC	Complies with EN61326
Dimensions	343 x 327 x 152mm (W D H) approx
Mass	8 kg approx
Accessories	Supplied complete with mains cord, measuring leads with Kelvin Clips, handbook and calibration certificate

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DO7 Digital Micro Ohmmeter Demonstration - Seaward Ohmmeters