Microampere meter

RomfordNavy

Not sure this is exactly the right forum but no where else is much more appropriate.

Looking for a microampere meter to measure in the range of 1-5 uA.

Any suggestions?

FreeBear

AC or DC current ?

Digital or moving needle ?

grumbler

Just a microampere meteror or something really good?

My Mastech multimeter has uA range.

This random £10 multimeter from SF has 0.1uA resolution according to its specifications - LAP DC Digital Multimeter 600V

RomfordNavy

FreeBear said:

AC or DC current ?

Digital or moving needle ?

DC, doesn't matter if analogue or digital, as long as it works and can be read easily.

RomfordNavy

grumbler said:

Just a microampere meteror or something really good?

My Mastech multimeter has uA range.

This random £10 multimeter from SF has 0.1uA resolution according to its specifications - LAP DC Digital Multimeter 600V

Interesting but I have some doubt about whether that really would provide a 0.1uA resolution at such a low current, althought great if it did.

FreeBear

This might be of interest - https://www.youtube.com/watch?v=kKWA4L_ZaI0

If you want precision and resolution, you will probably need to go for a lab grade multimeter like the Fluke 8808A or shop around for a cheap one on ebay.

RomfordNavy

How about this, does it look like it might work:

https://www.aliexpress.com/item/32849117990.html?spm=a2g0o.detail.pcDetailTopMoreOtherSeller.1.4221Isv3Isv35J&gps-id=pcDetailTopMoreOtherSeller&scm=1007.40050.354490.0&scm_id=1007.40050.354490.0&scm-url=1007.40050.354490.0&pvid=48402c6b-3eb8-4ce8-8d00-612451c42ef4&_t=gps-id:pcDetailTopMoreOtherSeller,scm-url:1007.40050.354490.0,pvid:48402c6b-3eb8-4ce8-8d00-612451c42ef4,tpp_buckets:668%232846%238109%231935&isseo=y&pdp_npi=4%40dis%21GBP%218.28%217.04%21%21%2110.25%218.71%21%40211b612517070512745914982e2427%2165219354391%21rec%21UK%21%21AB&utparam-url=scene%3ApcDetailTopMoreOtherSeller%7Cquery_from%3A

I wonder if I buy the 12v version whether that could be drived by a 9v battery.

FreeBear

If you want to power it from a 9V battery, I'd suggest going for the 5V version and use a Low Drop Out voltage regulator. Or you could take a chance on the meter having a built in LDO regulator...