logs are for putting on the fire. 1552 or 1553 all the way. with a 1553, the bluetooth is a pain anyway, so just don't use it. either of the above can be got 2nd hand for around £300, calibrated if you're lucky.
The 1st year calibration of a 1700 series is best done by Megger so the firmware can be updated and any issues sorted under warranty
Megger calibration is about £65.00
Auto-start tests on continuity and loop resistance – no need to push the button
Displays test voltage at the same time as insulation resistance
Dual test buttons for left or right-handed operation
Polarity test
RCD ramp test to measure RCD trip current with fast ramp option
Adjustable insulation alarms
Phase to phase loop test
RCD auto test & programmable tripping current level
3 phase RCD test
Phase rotation test
Remote switch probe included
Weatherproof to IP54
What's Included:- Megger MFT 1720, 3 Wire Test Lead Set, SP5 Switched probe, Mains plug Test Lead, Neck Strap, Quick Start Guide, Hard Carry Case, 8 x AA batteries, Calibration Certificate and User Guide
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