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.

Atlas Esr70 By Peak | Desertcart Cook Islands

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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NZ$1091

Duties & taxes included

In stock

Sold byAmazon Cook IslandsDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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

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Description

⚡ Hear the health of your capacitors—never miss a beat!

DYNAMIC RANGE MASTERY - Expanded 0-40 ohm range detects subtle faults and PCB shorts
PINPOINT PRECISION ESR - Ultra-fine 0.01 ohm resolution for exact capacitor health insights
INSTANT AUDIBLE FEEDBACK - Comfortable tones signal capacitor status—no guesswork needed
BROAD CAPACITOR COMPATIBILITY - Tests 1µF to 22,000µF across virtually all dielectric types
IN CIRCUIT TESTING CONVENIENCE - Analyze capacitors without desoldering—save time and effort

The Atlas ESR70 by Peak is a compact, battery-powered capacitor analyzer designed for professionals seeking precise ESR and capacitance measurements. Featuring an enhanced 0.01 ohm resolution and a wide 0-40 ohm dynamic range, it supports capacitors from 1µF to 22,000µF, including motor and electrolytic types. Its unique audible alert system provides instant, intuitive feedback on capacitor condition, enabling efficient in-circuit testing without removal. Ideal for engineers and technicians aiming to diagnose capacitor health quickly and accurately.

Specifications

ASIN	B005NIBEYU
Amazon Bestseller	#122,859 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #127 in Lab Oscilloscopes #1,228 in Lab Meters
Batteries	1 12V batteries required. (included)
Batteries Included	Yes
Batteries Required?	No
Color	Black, purple
Customer Reviews	4.5 4.5 out of 5 stars (4)
Date First Available	September 9, 2014
Is Discontinued By Manufacturer	No
Item Dimensions LxWxH	1 x 1 x 1 mm
Item Weight	96 g
Manufacturer	Peak Electronic Design Limited
Number Of Pieces	1
Part number	166225
Pattern	Sound and Circuit Pattern
Power source type	Battery Powered
Product Dimensions	0.1 x 0.1 x 0.1 cm; 96 g
Size	Compact
Style	Digital

Reviews

Y**O

昨日は便利ですね、円安の関係で価格が高くなってますね、もっと安ければ最高です。

31.01.2026

H**I

これは便利.使いやすい.

18.12.2025

A**ー

操作ボタンはONとOFFの2個だけで操作も簡単。測定値は繰り返し精度も有り、信頼できる。音と表示のせいか、なぜか測定が楽しくなるテスターです。微小抵抗値測定器としても使える所が良い。ただ電源の12Ｖ電池の消耗が早いと感じるので星－1です。なので、電池ホルダーから線を外に引き出し、リチウムイオン充電池3本＋シリコンダイオード1個を直列に接続した電池ホルダーを外付け改造してしまいました。

11.11.2018

A**A

大容量のケミコンも一発で測定めちゃ便利！

28.03.2020

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NZ$1091

Duties & taxes included

In stock

Sold byAmazon Cook IslandsDelivered 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 Cook Islands.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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