EEVblog Electronics Community Forum

I couldn't find an EEVblog-thread for this scope-based current clamp or any feedback, even though it's an older fellow, and curious if anybody had first-hand knowledge with this current clamp for relatively low amps (Max60A) or perhaps tried to optimize it, as it looks to be a very noisy fellow.

Specs: ETCR 007AD AC/DC Clamp Leakage Current transducer
* Function Measurement of AC/DC current, leakage current
*Power Supply Zn-Mn dry battery, 6RL61, 9V. Continually using for 100 hours, connecting external power supply is also available for long time using.
*Test Mode Clip-on CT, non-contact measurement
*Clamp Size Φ7mm
*Input Range 0mA-60.0A AC/DC
*Output Voltage 10mV/A;100mV/A(corresponding)
*Output Range 1V peak max
*Resolution 1mA AC/DC
*Accuracy ±3%FS(23℃±5℃, below 5%rh)
*Phase Error ≤3°(AC 50Hz/60Hz; 23℃±2℃)
*Calibration Adjust ZERO to calibrate, eliminate external electric field interference
*Output Wire Core wire: signal positive output; shielding wire: signal ground
*Lead length 2m
*Dimension LWH: 168mm×65mm×34mm
*Frequency AC: 45Hz-400Hz DC: DC-100kHz
*Test Position Tested wire in the jaw center
*Line Voltage AC600V
*Weight 170g (Including the battery)
*Working Current 5mA
*Working Temperature and Humidity -10℃-50℃,below 80%rh
*Limit Temperature Error -10℃-0℃ and 40℃-50℃, within 2%rdg
*Storage Temperature and Humidity -10℃-60℃,below 70%rh
*Insulating Strength AC3700V/rms (between the alloy of the clamp and the housing)
*Applicable safety rules IEC1010-1, IEC1010-2-032, Pollution level 2, CAT Ⅲ(600V)
*Accessories Sensor: 1piece; Battery(6F22,9V): 1piece; User Manual/Warranty card/ Certification.

Internals: (A shutload of unpopulated pads)

Any user feedback on these ETCR-007AD AC/DC (DC100KHz) current clamps.?
They were around 50US back in 2019/2020, so a tad more expensive than other budget-orientated AC&DC BNC-based current clamps for scopes, like fx Hantek CC-65 (DC 20KHz).
Here in 2023 - it looks like US sources like Newegg & Amazon are selling them for 3x to 3.5x their inner-price a few years back. https://www.newegg.com/p/2S7-07JP-2BCA2?item=9SIB33YJF64204 & https://www.amazon.com/ETCR-007AD-Leakage-Current-transducer/dp/B017YGOWQK



Manual [pdf] http://file.yizimg.com/492225/2016112-16458399.pdf [007AD Page+4]

Vendor https://www.etcrmeter.com/etcr007ad-ac-dc-clamp-current-sensor-50a_p160.html