Relay Tester | Car Battery Voltage & Alternator Analyzer | 11-25V LED Indicator
Stock Nr:
SKU:
1 / 4
£61.99inc VAT
This tool checks automotive relays and electrical systems. It works with 11-25V car batteries, showing voltage and alternator status with an LED light. Mechanics and DIYers can use it for quick diagno...
1Pc
- Secure checkout
- All major cards
- Tracked delivery
£61.99
Fast Shipping
Secure Payment
Easy Returns
Good to know
Questions about this product
- Will this tester work on my 24V truck battery, or is it only for 12V cars?
- It works perfectly on both 12V and 24V electrical systems. The tester supports any automotive battery and relay operating between 11V and 25V. You can use it on standard passenger vehicles and larger diesel trucks.
- What specific tests can I perform on my vehicle using this diagnostic tool?
- You can quickly test automotive relays to ensure they open and close properly. It also measures your battery's voltage and checks if your alternator is charging correctly. The built-in LED indicator gives you immediate visual feedback for each test.
- Can I use this tester on household appliances or high-voltage electric vehicles?
- No, this tool is strictly designed for low-voltage automotive systems between 11V and 25V. Do not use it on household AC outlets or high-voltage hybrid and electric vehicle battery packs. Doing so will damage the device and pose a safety risk.
Testing Equipment spec sheet (PDF)
Get a one-page sheet with full description, specifications, FAQs, price & SKU - handy to save, print, or share.
Not sure which one?
Compare with similar products
Nothing close enough to compare right now
We only put products side by side when they are genuinely the same kind of thing, in stock and in a similar price range. For this one there is no true match at the moment, so we would rather show you nothing than the wrong thing.
Compare options
More Testing Equipment
USB-C Endoscope Camera | 5.5mm Lens for Android & PC | Flexible Inspection Borescope with 6 LEDs
4.9
£39.99
USB-C Endoscope Camera | 7.0mm IP67 Waterproof Inspection Camera | Android & PC Compatible
4.9
£39.99
Non-Contact Voltage Tester Pen | AC Voltage Detector | 12-1000V Breakpoint Finder
4.9
£39.99
UNI-T UT363BT Anemometer proving unit | 0-30m/s Wind Speed & Temp Meter
5.0(27)
£104.99
UNIT UT12D Proving Unit | Non-Contact AC Voltage Tester | 24-1000V Alarm LED
5.0(30)
£54.99
LAN Cable Tester | POE Burn-Proof | RJ45 RJ11 CAT5 UTP Network Tool
5.0
£37.99
Surge Protection Device | 40KA 600V/1000V AC/DC | 1-4 Pole Low Voltage Home & Panel Arrester
5.0
£72.99
Pinless Moisture Meter | Non-Invasive Water Leak Detector | Ball Sensor for Wood, Drywall, Flooring
5.0
£129.99
Digital Tire Pressure Gauge | Quick Clip Air Chuck | Car, Motorcycle, Bicycle, RV
5.0
£64.99
Digital Manometer | Dual-Port Gas Pressure Tester | 12 Units of Measurement
5.0
£106.99
Non-Contact AC Voltage Tester Pen | 90-1000V Electric Indicator | LED Light for Outlet Testing
4.9
£26.99
Digital Water Quality Tester | PH & TDS Meter | 0-14 PH, 0-9990 PPM
4.9
£35.99
Explore the range
Popular in Tools & Hardware
Torx Screwdriver Set | 8-22mm Self-Tightening Wrench | Precision Glasses & Electronics Repair Tool
5.0
£27.99
Desoldering Braid | Solder Remover Wick | 2.0mm & 3.5mm x 1.5M
4.9
£20.99
Digital Vernier Caliper | 0-150mm Measuring Tool | Plastic Body
4.9
£33.99
Sander Sanding Discs | 125mm 8-Hole Pattern | For Wood & Metal Grinding
4.9(10.2K)
£31.99
12-Pair PU Coated Work Gloves | Ultra-Thin Grip & Knit Wrist | Nylon Shell Safety Gloves
4.9
£37.99
Cutting Disc Set | 75/115/125mm | For Angle Grinder & Steel Bars
4.9(3.0K)
£36.99
Tactical Work Pants Men | Multi-Pocket Waterproof | Outdoor Cargo Trousers
4.9(3.6K)
£72.99
Professional-Grade Instant Adhesive | 5-Second Super Glue for Shoes, Glass, Metal & Wood | Industrial Strength Bond
4.9
£27.99
Powerful LED Head Torch | Motion Sensor & Rechargeable | COB High Power Fishing
4.9(5.2K)
£52.99
DEWALT DCF850 Impact Driver Electric Driver 20V Brushless Cordless 3250RPM screwdrivers High Torque tools Power Tools
4.9
£204.99
Laser Rangefinder | Slope Compensation & Flagpole Lock | 600m Range, USB-C Rechargeable
4.9
£174.99
1-Inch Rotary Tool Sanding Sheets | 100pc Disc Set | For Dremel Tools
4.9(2.7K)
£31.99
Complete the set
Accessories & add-ons
Diamond Drill Bit Set | 18-68mm Hole Saw for Tile, Glass & Stone
5.0
£33.99
Diamond Drill Bit | 6-100mm Core Hole Saw for Porcelain, Granite & Glass
5.0
£35.99
Diamond Hole Saw Set | Dry-Cut for Porcelain, Tile & Glass | 5-16mm Sizes
5.0
£29.99
Forstner Drill Bit Set | 14-100mm Self-Centering Wood Boring Kit | Carbide-Tipped Precision
5.0
£25.99
Diamond Drill Bit Set | 8-Piece for Tile, Glass & Stone | 6-45mm Hole Saws
5.0
£154.99
Rotary Cutting Blade | 300mm Precision Disc for Paper, Film & Fabric | 1-Pack
5.0
£99.99
Tungsten Carbide Drill Bit | HRC65 Hardness | For CNC & Lathe Steel Drilling | 0.5-20.0mm
5.0
£36.99
Diamond Hole Saw Kit | 6-68mm for Tile, Porcelain & Marble | M14 Thread Core Drill Bit
5.0
£72.99
DC Circuit Breaker | 16A-63A Solar & Battery Protector | 100V-1000V DC MCB
5.0
£52.99
SHDIATOOL1pc /2pcs Drilling Core Bit 6-75mm Tile Drill M14 Marble Hole Saw Porcelain Drilling Bit Bell Saw Crown
5.0
£35.99
Flush Trim Router Bit | D16MM Pattern Face Mill | 8MM Shank Carbide Cutter
5.0
£48.99
Diamond Chamfer Bit | Precision Tile & Porcelain Beveling | Premium Hole Saw Milling Tool
5.0
£41.99