Hantek AC/DC Current Clamp for oscilloscope 40KHz Bandwidth 1mV/10mA 650A with BNC Plug (CC-650)

The differential probe is a silly good value for the money and for how it performs. Be careful, though. Open the package right away and verify the unit has not been opened or the cables not cable tied. My unit was clearly opened before I received it and missing some of the packing materials that would indicate it was new and not a return, it had loosely and carelessly wrapped probe cables placed inside the case without any effort or thought, the battery door showed signs it was opened more than once and without much touch and the probe was not clean and didn’t have plastic film anywhere like expected. The wait between my order and opening the package kept me from returning it for a new probe. That said, used or returned, clean or scuffed, it works very nicely on my 2 DSO’s and costs much less than a used differential probe for my Tektronix scope. Check the item and if it’s new it’s a good deal.

I was a bit worried that the limited frequency response would be a problem but it worked well. Would be nice if it had a little more gain, so the scope could operate on higher input settings.I was monitoring 20A pulses on high voltage direct injectors at idle speed.

Having the tool for the oscilloscope use to examine current changes without break apart wires. Not quite sure the accuracy.

Good item the wire way too short for automotive purpose.

The item I received was clearly one that had been returned. The cord was sloppily wrapped around the handle of the current clamp and there are remnants of oil on the plastic housing. I will test the clamp this weekend to determine if it is fully functional and keep it if it is. But I paid full NEW price for this and I do not appreciate receiving a returned item. That's what "open box" sales are for. I'll likely purchase another brand, going forward.

I tested this amp clamp on a known amp draw that was measured with the same DVOM inline. The amp draw was 280 mA and with the amp clamp, the reading was erratic and 100mA higher. I tried to zero out the clamp multiple times along with different positions and none proved to work. It is cheap but not even close.

Good

Buena presentación marca ya conocida, buena predicción para su costo.

No funciona bien el selector para la medición,La visualización de forma de onda se ve bien,Pero el selector a veces funciona y aveces no