£20.76

It has never been this cheap. We have no record of a lower price.

£21 today · cheaper than every other day in the last 3 months

Relay Buddy ESI 192 Black 2.5" x 5" 12/24V Diagnostic Relay Buddy

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Price History & Forecast

Grey patches = out of stock. Cheaper = lower on the chart. Hover for exact prices.

Last 66 days · 66 data points (no recent data)

Historical
Generating forecast…
£82.44 £14.59 £29.40 £44.20 £59.00 £73.80 £88.61 23 July 2026 08 August 2026 24 August 2026 09 September 2026 26 September 2026
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Black, 192

Price data last checked 25 day(s) ago - will refresh soon

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Price Distribution

Price distribution over 66 days • 5 price ranges

Days at Price
Current Price
13 days · current 40 days 7 days 4 days 2 days 0 10 20 30 40 £21-33 £33-45 £45-58 £58-70 £70-82 Days at Price

Price Analysis

Most common range: £33-45 (40 days, 60.6%)

Price range: £21 - £82

Price levels: 5 price ranges over 66 days

Description

Relay Buddy 12/24 is a quick go / no-go tester for the most common automotive relays. This new version Relay Buddy tests both 12 and 24 volt relays. If the relay fails the test, 3 different trouble codes will advise you of the possible causes for the failed relay. The red LED will flash once, twice or three times to indicate the problem. Trouble code definitions are printed on the back of the tester for your convenience. Relay Buddy 12/24 provides you with an indication of the general health and functioning of the relay switch contacts and coil. It will check the control side of the relay by applying a signal to the relay coil while it checks for proper functioning of the relay contacts. Relay Buddy operates the relay several times during each test session as it watches for consistency in every cycle. Relay Buddy will fail the relay and light the RED LED if any one of the cycles proves unsuccessful during the test session.

Key Features

Tests both 12V and 24V relays

3 diagnostic trouble codes help define the cause of the bad relay

Quick off-the-car relay tester

Checks relay coil & switch contacts

Fails bad relays - Good/Bad indication, green light for PASS, red light for FAIL with flashing trouble code

Product Specifications

Model
192
Colour
Black
Size
2.5 Inch X 5 Inch
Domain
Amazon UK
Release Date
02 August 2025
Listed Since
10 May 2006

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