Powered circuit tester (Autel PowerScan PS100)
Manufacturer Autel. Sold by Auteltester UK, a UK-registered shop. For technicians and advanced DIY only.
Electrical diagnostic tools
Last updated · OBDCode UK editorial
These tools are not interchangeable. A multimeter answers many supply, earth and continuity questions. A powered circuit probe can energise a wire. A handheld oscilloscope is only useful when waveform shape or timing matters. Two specialist shops have passed the current check.
Can buy
Two shops have passed the current check: an Autel PowerScan PS100 circuit tester, and a BSIDE OT3 10 MHz handheld oscilloscope. A powered probe is a technician tool, not a first buy for reading a code.
We do not publish a pound figure here. Confirm the live price on the destination shop.
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How to choose
Define the measurement first. A multimeter or test light can answer many supply, earth and continuity questions. A powered circuit probe is for trained users who understand when a circuit may safely be energised. An oscilloscope is useful only when waveform shape or timing matters — it is not a first tool for “what does this code mean?”
Check the tool’s voltage category, input limits, lead fusing and vehicle-system compatibility. Prefer back-probing or manufacturer-approved breakout methods over piercing insulation. The manufacturer name (Autel, BSIDE, or the real scope brand) must appear on the shop page. Do not treat a shop name as the factory.
Selection checklist
- Whether the job needs voltage, continuity, controlled power or a waveform
- Input limits, fused leads and 12V/24V compatibility
- A wiring diagram and a safe test point for the exact vehicle
You may not need to buy this if…
- A basic multimeter or test light can answer the question safely
- You do not have a wiring diagram or cannot identify the circuit
- The circuit involves airbags, pretensioners, hybrid or EV high voltage
- You have not used a scope before and the job is not a waveform diagnosis
A powered probe can energise a component or wire. Never apply power to airbag, pretensioner or other pyrotechnic circuits, and do not probe orange hybrid or EV high-voltage wiring. Keep leads clear of belts, fans and hot parts. Use fused leads on a scope and stay clear of ignition HT leads. If the circuit or test point is uncertain, stop and use a qualified auto electrician.
Shelf status
Handheld oscilloscope (BSIDE OT3)
Manufacturer BSIDE, model OT3. Sold by Probeo, a UK-registered shop. Waveform jobs only.
Supplier links
Autel PowerScan PS100 circuit tester
Autel’s powered circuit probe for 12V/24V work. It can energise a wire. For technicians and advanced DIY only. Confirm the live price and stock on the shop page.
Supplier: Auteltester UK · Link reviewed 14 August 2026
Commercial relationship: A related business may benefit directly from this sale. The shop is operated by RETRETO NEXT LIMITED (Company No. 15166864), a UK-registered company.
Continue to the Autel PowerScan PS100 listing (opens in a new tab)Availability and price are set by the supplier; confirm both on the destination page.
BSIDE OT3 10 MHz handheld oscilloscope
A BSIDE OT3 handheld scope for waveform jobs only — not a first tool for reading a code. Confirm the live price and stock on the shop page.
Supplier: Probeo · Link reviewed 14 August 2026
Commercial relationship: A related business may benefit directly from this sale. The shop is operated by RETRETO NEXT LIMITED (Company No. 15166864), a UK-registered company.
Continue to the BSIDE OT3 listing (opens in a new tab)Availability and price are set by the supplier; confirm both on the destination page.
All tool categories · What a diagnostic test costs
General guidance for UK drivers, not a substitute for a professional diagnosis. Category and supplier review date: 14 August 2026.