Does this meter handle run/start capacitors in hvac work?

Yes this meter and Fluke 324 check capacitance, but the Fluke 324 will NOT check Max amperage nor starting amperage of an air conditioning compressor like this meter does. The Fluke 325 does but is almost $300.

How small of DC current can this measure? 5mA and lower?

I'm afraid not. According to the instruction manual, in the lowest DC current range (60.00A) the resolution is 10mA. The accuracy is +/-(2.0% + 8 digits).

Unfortunately Klein has outsourced its electronics. The multi meters are made in China. Most hand tools are still made in USA. They are tested and approved by ETI for distribution in America. But I am very disappointed in Klein.

With the clamp you can measure amps in DC. and up to how many amps maximum. for automotive mechanics

Maybe this is an updated version of the CL900 but the meter and specs say up to 2000 amps AC and up to 2000 amps DC using the clamp.

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Description

⚡ Clamp into precision — the Klein CL800 powers your pro edge!

ALL IN ONE PRO KIT - Includes carrying case, test leads with CAT III/IV safety caps, thermocouple, and batteries—ready to go out of the box.
BUILT FOR THE HUSTLE - IP40 ingress protection and 2-meter drop resistance mean this meter thrives in rugged jobsite conditions.
GHOST VOLTAGE GONE - Low Impedance (LoZ) mode eliminates false readings, saving you time and frustration.
PRECISION MEETS POWER - True RMS accuracy ensures every reading is spot-on, empowering your decisions on the job.
WORK ANYWHERE ANYTIME - Backlit display and integrated worklight keep you productive in dim or tight spaces.

The Klein Tools CL800 Digital Clamp Meter is a robust, auto-ranging TRMS tester designed for electricians and professionals. It measures AC/DC voltage and current, resistance, continuity, frequency, capacitance, temperature, and detects ghost voltages with LoZ mode. Featuring a backlit LCD, integrated worklight, and rugged IP40 and drop protection, it’s built for demanding jobsite environments. The complete kit includes test leads, thermocouple, carrying case, and batteries, making it a ready-to-use, all-in-one electrical testing solution.

Specifications

Brand	KLEIN TOOLS
Power Source	Battery Powered
Style	600A AC/DC Current
Color	Multi
Item Weight	12.5 Ounces
Item dimensions L x W x H	9.09 x 3.82 x 1.54 inches
Min. Operating Voltage	9 Volts
Specification Met	Meets Relevant Industry Standards
Upper Temperature Rating	60 Degrees Celsius
Maximum Operating Voltage	1000 Volts
UPC	092644690167
Manufacturer	Klein Tools
Global Trade Identification Number	00092644690167
Part Number	CL800
Item Weight	12.5 ounces
Product Dimensions	9.09 x 3.82 x 1.54 inches
Item model number	CL800
Batteries	2 AAA batteries required. (included)
Is Discontinued By Manufacturer	No
Size	Temperature, Capacitance, Frequency/DC Current, Low Impedance
Finish	Brushed
Material	Blend
Pattern	Clamp Meter
Shape	Rectangular
Item Package Quantity	1
Number Of Pieces	1
Measurement Accuracy	‎Voltage Tester
Display Style	6000 Count LCD
Special Features	Features Low Battery Indicator and Auto Shut Off
Included Components	Carrying Case, 41'' (1041.4 mm) Test Leads, Thermocouple with Adapter, and Batteries
Batteries Included?	Yes
Batteries Required?	Yes
Battery Cell Type	Alkaline
Description Pile	2 x AAA

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