SDG #248 £500 Hi Res Bench Multimeter - Hantek HDM3065 HDM3055 5.5 and 6.5 digit DMM

Hantek’s HDM3065 sits in an interesting gap in the bench multimeter market: it promises 6.5 digit resolution at a price well below the established Keysight, Rigol and Siglent options, and it has a nearly identical sibling, the HDM3055, that drops to 5.5 digits for less money. This review works through whether that price gap reflects real hardware differences or just firmware limits.

The practical testing covers what actually matters day to day rather than headline specs. The user interface and menu structure get a workout, including how quickly you can reach the functions you use most, and the continuity and diode test behaviour is checked because slow or badly tuned continuity is a common annoyance on cheap bench meters. DC voltage accuracy is compared against a precision handheld voltage reference, which gives a useful indication of whether the claimed resolution translates into meaningful trailing digits or just noise.

The teardown is where the review earns its keep. Layout, input protection, the analogue front end and the shielded section covering the sensitive measurement circuitry are all examined, then the 5.5 digit and 6.5 digit boards are compared side by side to see exactly which components differ. That comparison is the deciding factor for buyers weighing the two models: if the difference is minor, the cheaper unit becomes the sensible choice, and if the higher spec board carries genuinely better parts, the premium is justified.

Anyone shopping for a first bench DMM, or looking to add a second meter for logging and differential measurements, will find enough here to judge whether Hantek’s offering is a bargain or a compromise.