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 Atlas ESR70 Capacitance and ESR Meter

Velleman Atlas ESR70 Capacitance and ESR Meter

Product ID: 7749924

Details

Brand
Velleman
Color
Purple
Item Weight
0.1 kg
Power Source
Battery
Style
Digital

⚡0.01Ω ESR resolution

📊0-40Ω dynamic ESR range

🔔Audible ESR alerts

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Description

🔍 Diagnose like a pro, hear the health of your capacitors!

AUDIBLE ALERTS - Pleasant tones guide you through ESR levels, making diagnostics intuitive
EXPANDED ESR RANGE - Double the measurement range up to 40Ω to catch even subtle faults
PINPOINT PRECISION - Ultra-fine 0.01Ω ESR resolution for exact diagnostics
BROAD COMPATIBILITY - Measures any capacitor from 1µF to 22,000µF, including motor & electrolytic types
INSTANT IN CIRCUIT TESTING - No need to remove capacitors—test directly on the board

The Velleman Atlas ESR70 is a digital capacitance and ESR meter designed for professional-grade capacitor testing. It features an enhanced ESR measurement range from 0 to 40 ohms with a fine resolution of 0.01 ohms, supports all capacitor types between 1µF and 22,000µF, and offers unique audible alerts for quick, intuitive diagnostics. Its in-circuit testing capability and instant readout make it an essential tool for engineers and technicians aiming for precision and efficiency.

Specifications

ASIN	B005NIBEYU
Best Sellers Rank	#62,571 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #22 in Lab Oscilloscopes #503 in Lab Meters
Brand	Velleman
Brand Name	Velleman
Color	Purple
Compatible Devices	Capacitors (various types)
Customer Reviews	4.6 out of 5 stars 254 Reviews
Global Trade Identification Number	05410329460631
Item Dimensions	0.04 x 0.04 x 0.04 inches
Item Weight	0.1 kg
Item dimensions L x W x H	0.04 x 0.04 x 0.04 inches
Manufacturer	Peak Electronic Design Limited
Measurement Type	ESR Meter, Capacitance Meter
Model	ESR70
Number of Items	1
Part Number	166225
Power Source	Battery Powered
Style	Digital
Style Name	Digital
Unit Count	1 Count
Upper Temperature Rating	35 °C

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HK$2281

Duties & taxes included

In stock

Sold byAmazon Hong KongDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Hong Kong.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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