Seaward Group USA DO7e 兆欧表

"The DO7e is a practical low cost instrument for low resistance measurement, ideal for 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 DO7e has many advanced features, including protection up to 415 volts rms at the measuring terminals, digital calibration and long scale length, 6000 count. The measuring ranges may be automatically or manually selected. Rechargeable batteries means real portability with more than 1 hour of continuous operation on the lowest ranges, and 20 hours on all others. Automatic Power Off ensures maximum battery life. 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. The DO7e is supplied ready for use with batteries, mains cord and test leads, no extras are normally necessary. For special lead sets we offer a variety of different styles which are listed on the accessories page, together with calibration standards."