What type of leads come with the unit, i. e. alligator/pin probe?

Jack, if you wanted to use pin probes they would attach to the alligator clips. The leads on the unit are about 20" long anyway.

I work on old Amps, can it test 350 volt & 450 volt capacitors.this question is pertaining to the Atlas ESR 70

As others have mentioned, it can test those capacitors if they are in their discharged state.The manufacturers specs say - it can auto discharge up to +/- 50v and for a cap that is less than 10uF the absolute maximum it can withstand is +/- 275v, over 10uF that is +/- 50v

Can this unit be used to test capacitors in circuit (without unsoldering)?

Atlas ESR can be used in the circuit. For this reason, also be measured without removing the capacitor from the substrate. Of course, even if you test a capacitor is removed from the circuit, can be measured.

so it only checks capacitance of .1uf or higher?

Its capacitance measurement range is 1uF to 22,000uF with 0.2uF accuracy.

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Velleman Capacimeter and ESR measurement - ESR70G, Black and Purple

Product ID: 53433170

Details

Brand
Velleman
Colour
Purple
Item weight
0.1 Kilograms
Power source
Battery
Style
Modern

⚡Integrated discharge circuit for safe capacitor testing

📏ESR measurement range 0-20 ohms for precision

🔋Battery powered with included 12V alkaline battery

Description

⚡ Measure with confidence, test with precision!

READY TO GO - Comes with a 12V alkaline battery included—no extra setup, just instant professional use.
VERSATILE USE - Designed for both in-circuit and out-of-circuit ESR and low ohm resistance measurements—flexibility that fits your workflow.
PRECISION ESR RANGE - Measure ESR from 0 to 20 ohms accurately, whether inside or outside the circuit—never miss a low-ohm detail.
SAFE SMART TESTING - Integrated discharge circuit protects your device from charged capacitors—test with confidence every time.
UK QUALITY ASSURANCE - Proudly made in the UK with continuous product improvements ensuring reliable, cutting-edge performance.

The Velleman ESR70G Capacimeter and ESR meter is a compact, battery-powered device designed for precise ESR and low ohm resistance measurements. Featuring an integrated discharge circuit for safe capacitor testing, it operates within a 0-20 ohm ESR range and is suitable for use both inside and outside circuits. Made in the UK and supplied with a 12V alkaline battery, it combines reliability with professional-grade accuracy.

Specifications

ASIN	B005NIBEYU
Best Sellers Rank	394,628 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 463 in Capacitance & Resistance Meters
Brand	Velleman
Colour	Purple
Compatible Devices	Capacitors (various types)
Customer Reviews	5.0 5.0 out of 5 stars (2)
Global Trade Identification Number	05410329460631
Included Components	ESR, Low Ohm Resistance and Capacitance Meter
Item Dimensions	1 x 1 x 1 millimetres
Item Type Name	Esr Low Ohm Resistance and Capacitance Meter
Item Weight	0.1 Kilograms
Manufacturer	Velleman
Manufacturer Part Number	166225
Measurement Type	Ohmmeter
Model Number	ESR70
Number of Items	1
Number of Packs	1
Power Source	Battery Powered
Style Name	Modern
Unit Count	1.0 count
Upper Temperature Rating	35 Degrees Celsius

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