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

⚡ Empower your workflow with precision and speed — the Klein CL800 is the pro’s secret weapon!

STAY IN THE KNOW - 6000 count LCD display ensures crystal-clear readings for confident diagnostics every time.
SMART SUSTAINABLE - Low battery indicator plus auto shut-off extend battery life and keep you working longer.
CLAMP GO EFFICIENCY - 600 Amp clamp meter lets you measure high currents hands-free—no circuit interruption needed.
PRECISION MEETS POWER - Auto-ranging TRMS tech delivers pinpoint accuracy across voltage, current, and resistance.
MULTI FUNCTION MASTERY - Measures voltage, resistance, continuity, frequency, capacitance, diodes, and temperature with one sleek tool.

The Klein Tools CL800 Digital Clamp Meter is a versatile, battery-powered electrical tester featuring auto-ranging TRMS technology for accurate AC/DC current measurement up to 600 amps. It includes a thermocouple probe for temperature readings and supports testing of voltage, resistance, continuity, frequency, capacitance, and diodes. Designed for professionals, it offers a 6000 count LCD display, low battery indicator, and auto shut-off for extended usability.

Specifications

Manufacturer	Klein Tools
Part number	CL800
Item Weight	354 g
Product Dimensions	23.09 x 9.7 x 3.91 cm; 354.37 g
Batteries	2 AAA batteries required. (included)
Item model number	CL800
Size	Temperature, Capacitance, Frequency/DC Current, Low Impedance
Color	Black/Orange
Style	AC/DC Current/Low Z, Temp, Cap, Freq
Material	Blend
Pattern	Tester
Power source type	Battery Powered
Item Package Quantity	1
Number Of Pieces	1
Measurement System	Metric
Display Style	6000 Count LCD
Specification met	CE
Special Features	Features Low Battery Indicator and Auto Shut Off
Included components	Digital Clamp Meter
Batteries Included?	Yes
Batteries Required?	Yes
Battery Cell Type	Alkaline
tech_spec_battery_description_toys	2 x AAA

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