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  Probes & Circuit Testers (39 items)

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Sealey TA050 Digital Tachometer Contact/non-contact (1 offer) 
Professional quality laser instrument for fast and accurate measurement of rotational speed with or without contact. Will also measure total revolutions, frequency, surface speed and distance. Ten ...
Sealey
TA050
from £ 89.38*
per piece
 
 piece
Sealey TA120 Current Tester 20A - Standard Fuse (1 offer) 
Fast, accurate and safe current measurement at the fuse box. Ideal for fault-finding on car and commercial vehicle electrical circuits. Features large LCD display. Plugs straight into the vehicle's...
Sealey
TA120
from £ 17.69*
per piece
 
 piece
Sealey TA121 Current Tester 20a - Mini Fuse (1 offer) 
Fast, accurate and safe current measurement at the fuse box. Ideal for fault-finding on car and commercial vehicle electrical circuits. Features large LCD display. Plugs straight into the vehicle's...
Sealey
TA121
from £ 17.76*
per piece
 
 piece
Sealey TA125 Current Tester 80a (1 offer) 
Fast, accurate and safe current measurement at the fuse box. Ideal for fault-finding on car and commercial vehicle electrical circuits. Includes hold and peak functions for detecting current surges...
Sealey
TA125
from £ 80.20*
per piece
 
 piece
Sealey TA126 Automotive Current Tester 30A (1 offer) 
Fast, accurate and safe current measurement at the fuse box or battery. Ideal for fault-finding on car and commercial vehicle electrical circuits. Features large LCD display with numeric and bar-ty...
Sealey
TA126
from £ 61.84*
per piece
 
 piece
Sealey TA131 Relay Tester (1 offer) 
Health test for 4 and 5-pin electro-mechanical relays commonly found on modern vehicles. Test feature will cycle the relay ten times, testing the resistance, contacts and consistency within each cy...
Sealey
TA131
from £ 60.48*
per piece
 
 piece
Sealey VS526 In-line Ignition Spark Tester (1 offer) 
Tests HT supply to spark plug. Suitable for spark ignition engines. Quick and simple fault diagnosis.Model NoVS526Lead Length:100mmNett Weight:0.07KgProbe Length:55mm
Sealey
VS526
from £ 6.09*
per piece
 
 piece
Sealey VS5261 Ht Tester Set 4pc (1 offer) 
Set allows single or multiple testing. Simply fit tester between spark plug and HT lead and then run engine. Regular flashing of the testers indicates a good HT supply. Not suitable for engines wit...
Sealey
VS5261
from £ 13.18*
per piece
 
 piece
Sealey VS5272 Automotive Induction Probe (1 offer) 
Quick and easy to use. Ideal for testing ignition coils, fuel injectors and relays. Powered by 2 x AA batteries (not included). Not suitable for piezo energised fuel injectors.
Sealey
VS5272
from £ 6.97*
per piece
 
 piece
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* Prices with asterisk are net prices excl. statutory VAT.
Our offer is only aimed at companies, public institutions and freelancers.