Does this measure capacitors in micro farads on a capacitor on the Air Conditioner?

No. Not a micro farad reading. However, you can still test it to see if the capacitor is good. With all wires taken off, simply put your leads on each side and hold for like 3-5 seconds. Then, switch your leads. If you get a very short reading and it goes away, your capacitor is fine. That's its only job. Stores energy . No need to buy a micro farad meter unless the print is gone and you want to know what micro Farad it is. Hope that helps.

Ncv setting returns a reading of ef. what is ef? why can i not get a kreading as shown in the video?

Dear customer, Thank you for choosing ANENG Multimeter.As for ST181 non contact voltage tester, when you test the NVC function, it is preferred to rotate the button to the NCV position, and then close to the socket, the sound of beep beep beep will be displayed. If you test with test wire, in FireWire recogniton,it will emit a quick beep. At Zero Line Recognition,it will not beep and show"EF".

Dear,ANENG ST181 clamp meter can measure only for AC current (not for DC current), AC and DC voltage, resistance, capacitance, continuity,diode and frequency (Hz),live/zero wire,NCV Detector.It's a perfect troubleshooting ammeter tool.

Has anyone checked an air conditioner capacitor in micro farads with this & is it accurate?

I have checked capacitors with it both bad and good and it seems to be accurate.

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⚡ Power up your precision with ANENG — the multitool every pro needs!

SAFETY FIRST - Dual fuses, overload protection & insulated probes keep you secure on every job site.
LIFETIME SUPPORT - Reliable customer service and technical assistance ensure your multimeter stays mission-ready.
COMPACT PORTABLE - Lightweight design with silicone protective case—take your trusted tool wherever you go.
ALL IN ONE PRECISION - Measures voltage, current, resistance, capacitance, frequency & more with 4000 counts for pro-grade accuracy.
USER FRIENDLY INTERFACE - Backlit, clear LCD display with multiple modes for quick, confident readings anytime.

The ANENG 4000 count digital pliers ammeter is a versatile, battery-powered multimeter designed for professionals and hobbyists alike. It accurately measures AC/DC voltage, current, resistance, capacitance, frequency, diodes, and continuity with 1.0% ± 5 digits accuracy. Featuring a backlit display, safety-focused design with dual fuses and insulated probes, and a compact, portable form factor with protective silicone case, it’s engineered for reliable, on-the-go electrical diagnostics. Includes lifetime customer support for lasting peace of mind.

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Manufacturer	ANENG
Part number	ST181
Item Weight	0.6 g
Product Dimensions	10 x 10 x 2 cm; 0.6 g
Batteries	2 AAA batteries required.
Manufacturer reference	ST181
Color	4000 AC Current Counts
Style	portable
Power source type	Battery Powered
Wattage	1.88 Watt-hours
Item Package Quantity	1
Measurement Accuracy	1.0% ± 5 digits
Included components	/
Batteries Included?	No
Batteries Required?	Yes
Battery Cell Type	Alkaline

ANENG4000 count digital pliers ammeter, with NCV, measures AC current, voltage (AC/DC), capacitance, resistance, diodes, frequency, continuity, with backlit electrician tools

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