All new M. C. Miller meters include a Calibration Certificate
• Rugged, lightweight case - safe to use on wet ground
• Weather resistant, even with lid removed
• Convenient case lid removal for ease of movement, with test leads attached, to new measurement locations
• Resistance measurement range from 0.01Ω to 1.1MΩ
• Resistance measurements are unaffected by any stray interference signals that may be present in the earth during readings, due to the use of narrow band-pass filters centered at 97Hz (the unit’s operating frequency)
• Runs on a set of C-cell alkaline batteries...no need to periodically recharge the unit or to plug it into a power source
More Information: Miller 400A comparison study
Important information about calibration checking.