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Testers

The 10 best products of August 2025
Last update: 19 August 2025
AstroAI
AstroAI
AstroAI Digital Multimeter Voltmeter Ohmmeter Ammeter Multi Tester Meter with Backlit LCD Electronic Test Meter (Black)
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#1 WINNER

  • Versatile Digital Multimeter - Accurately measures AC/DC Voltage, DC Current, Resistance, and Diode. This Multimeter is a really useful tool for solving industrial and household electrical issues. Suitable for Household Outlets, Fuses, Batteries (including Vehicles), Automotive Circuit Troubleshooting, Charging Systems, Testing electronics in Cars etc.
  • Accurate Battery Voltage Test - Includes 1.5V, 9V, and 12V battery test modes to easily test a wide variety of batteries. 1.5V and 9V modes will automatically detect and display battery status.
  • Ensures Safety - Double fuse is anti-burn and protects from overloading. The silicone cover can protect the multimeter from failing damage and prevent electric shocks. And low battery indication will be displayed when battery power is low.
  • Ease of Use - Support Data Hold, Auto Shutoff and Continuity Buzzer. Includes Convenient feature like LCD Backlit Screen makes it easy to use in dimly light areas. Batteries/Set of Test Leads/User Manual are Included.
  • Additional Tips - This Multimeter is designed to troubleshoot a variety of automotive and household electrical problems safely and accurately. It's a suitable tool if you want to do some household or commercial improvements whether DIYers or Hobbyists. (NOTE: This meter can not test AC Current; Ensure your multimeter is set to the correct setting before testing)
  • £8.48 ON AMAZON
Rolson
Rolson
Rolson 28110 2 pc Mains Tester                  
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#2

  • Both with plain slot blade, insulated blade sheath and transparent plastic handles
  • Test range: 100 - 250V
  • Size: 190 x 3.5mm and 140 x 3mm
  • £4.38 ON AMAZON
ATUTEN
ATUTEN
UT15C Two Pole Voltage and Continuity Tester - Waterproof, AC/DC Voltage Testers, 12V ~ 690V Range, 3-Phase AC Phase Rotation Test, Can Determine The Zero Line and Fire Line - Continuity Tester
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#3

  • Extensive Voltage Range: Capable of testing AC/DC from 12V~690V with a bright, easy-to-read LCD display.
  • Versatile and practical: suitable for voltage indication, single-pen (L2) measurements, on-off tests, polarity measurements and phase rotation tests
  • Simple Continuity Tests: Incorporate operative batteries to perform precise continuity examinations.
  • Travel-friendly Design: The handheld voltage tester design makes it straightforward and flexible to use.
  • Single Pole Voltage Detection: Comes with a handy test pen function for additional expediency.
  • Clear LED Indicators & Buzzer: AC voltage can be identified via LEDs and buzzing, both positive and negative, whereas DC voltage features positive LED illumination and a buzzer reversal.
  • Precise Phase Rotation Test: Dependably establish the phase rotation within a three-phase supply.
  • Low Battery Alert: Short circuit two leads to receive either an LED or beeping warning if battery life is dwindling.
  • Quick Single Pole Check: Perform speedy checks of single pole voltage using this handy tester.
  • Durable & Dependable: With consistent performance and robustness, this voltage tester is a crucial tool for both domestic and professional purposes.
  • £35.99 ON AMAZON
KAIWEETS
KAIWEETS
KAIWEETS HT100S Voltage Tester, Dual-Range 12V-1000V/70V 1000V Non-Contact Electric Tester, Sensitivity Electric Compact Pen with NCV, LED Flashlight, Buzzer Alarm, Wire Breakpoint Finder
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#4

  • Non Contact: Just place the NCV tip near a terminal strip, outlet, or supply cord. When the tip glows red and the pen beeps, you know there's voltage present. The live wire detector can automatically detect the live or neutral wire. Ideal for breakpoint Tests. Handy circuit tester for electricians, and homeowners.
  • Safety First: It will send out multiple alarms through sound and light. When the voltage is detected, the tip will send out red light and beep. When the higher the sensed voltage is, or the closer it is to the voltage source, it beeps at a higher frequency. At the same time, the screen will be red or green, red means the high voltage and live wire are detected, and green means the low voltage and null wire are detected.
  • Dual Range: Only detects AC voltage (12-1000V AC / 70-1000V AC) for more sensitive and flexible measurements. Press the S button to adjust sensitivity and adapt low range for doorbells, thermostats, irrigation wiring, etc; The NCV sensor automatically recognizes the voltage and displays it on the bar graph.
  • Security Level: IEC-rated CAT III 1000V, Meets CE requirements; The electrical tester is safely double-insulated. High Voltage Alert to warn you of voltage above 70V, the screen turn red, and the electric shock warning symbol is displayed on the screen.
  • Compact Size: Bright LED flashlight and backlit for work in dim areas; Auto Power Off after 5 minutes without operation or no signal detection; pen hook allows you to carry it in your shirt pocket. We provide a 36-Month after-sale service, Please feel free to contact us if you have any concerns.
  • £8.07 ON AMAZON
Martindale
Martindale
Martindale VT12 Two Pole Voltage and Continuity Tester, Yellow
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#5

  • LED voltage indicator
  • Measures 12 V to 690 V
  • Includes continuity test
  • Probe caps for GS38 compliance
  • £33.48 ON AMAZON
TOOLSTEK
TOOLSTEK
TOOLSTEK 140mm 3mm Mains Tester Plain Slot Blade Neon 100-500Volts Circuit electricians Electrical Voltage Pen Flat Screwdriver Transparent Safety Insulated Handle Pocket Clip
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#6

  • Mains Tester Screwdriver is fitted with a neon indicator in the clear plastic handle which illuminates when the point of the tester is touched on a live voltage source of between 120-250 volts and an earthing contact is made with the metal stud on the top of the handle.
  • Main tester is fully insulated and is supplied complete with full operating instructions and will perform the following tests: continuity, bulbs, fuses, short circuits, cable tracking, mains sockets and microwave oven leakage.
  • Main tester will test electricity up to 250 volts. Hold the Main tester by the insulated handle, do not touch any part of the exposed metal blade. Always test the Main tester before you start by contact with a known live power source. You do not need to touch the touch pad at the top of the Main tester (although it is perfectly safe to do so).
  • The red LED will glow brightly when the Main tester metal blade is in contact with a live circuit, indicating that it is functioning correctly.
  • Hold the index finger against the cap end of the electric pen, thumb and middle finger, and gently pinch the electric pen with your ring finger to keep it stable, and then insert the metal nib into the socket panel hole on the wall or the external power strip socket hole.
  • £3.45 ON AMAZON
ULTRICS
ULTRICS
ULTRICS Digital Multimeter, Voltmeter Ammeter Ohmmeter Circuit Checker with Backlight LCD Test Leads, Portable Multi Tester Measures OHM AC DC Voltage Current Resistance Continuity Diodes Transistor
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#7

  • 【MULTIPURPOSE USE】 Compact digital multimeter ideal for commercial and home use. Works as a voltmeter, ammeter, ohmmeter testing continuity, AC/ DC voltage, diode, transistor HFE, car battery tester
  • 【RELIABLE PERFORMANCE】 This digital multi tester includes test leads and 9V battery, overcharge protection on all ranges, low battery indicator. Double insulation with a stand for good viewing angle
  • 【LCD BACKLIT DISPLAY】 Professional multimeter tester's display is visible from different angles, making value easily readable in low light and dark places. Data hold function makes measuring easier
  • 【DIY TESTING TOOL】 This electrical tester or device is useful in the laboratory, education, workshop, factory. Recommended by professionals/ engineers. A safe device with upgraded 1000V 10A probes
  • 【DURABLE AND SAFE】 Our voltage meter can be handheld or used with a fold out stand, a thick rubber case protects the multi meter from splashes, minor bumps. Comes with 12 month warranty and supports
  • £9.99 ON AMAZON
Eightwood
Eightwood
Eightwood Pen Electric Tester Mains Tester Screwdriver Electrical Tester Screwdriver 220V Voltage Electrical Pen Tester 220V Voltage Electric Tester Pen with Voltage Test Power Detector Probe
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#8

  • Electrical Tester Pen 220V Screwdriver with Voltage Test Power Detector Probe
  • Testing Voltage: 220V
  • Overall Length: 75mm | Tip Diameter: 4mm
  • Material: Chrome-Vanadium Steel, ABS+TPR
  • Package: 1x Tester Pen
  • £7.59 ON AMAZON
Aicevoos
Aicevoos
Aicevoos A1 Voltage Tester/Non-Contact Voltage Tester with Range AC 12V-1000V/48V-1000V, Live/Null Wire Tester, Electrical Tester with Flashlight, Buzzer Alarm, Wire Breakpoint Finder
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#9

  • SAFETY FIRST: When the detected voltage is higher, or the closer it is to the voltage source, it will beep at a higher frequency and the light will be red. Red means high voltage and live wires are detected, yellow means low voltage and neutral wires are detected.
  • NCV INDUCTION: The breakpoint finder has an NCV sense probe for AC voltage, just place the tip near an outlet or power cord. You know voltage is present when the red light turns on and the pen beeps.
  • DUAL RANGE: Detects standard voltages and low voltages (12-1000V AC / 48-1000V AC) for more sensitive and flexible measurements. Press the H/L key to adjust sensitivity to accommodate low ranges for doorbells, thermostats, irrigation wiring, etc.
  • AUTOMATIC SHUTDOWN: The electrical tester is double insulated for safety and complies with CE standards. When the battery voltage is lower than 2.5V, the power indicator will light up; it will automatically shut down after 5 minutes of no operation or no signal detection.
  • COMPACT DESIGN: The voltage tester features a bright LED flashlight for working in dim locations; pocket-sized pen hooks allow you to carry it in your shirt pocket.(Laser: Class 2, maximum laser output <1mW)
  • £7.59 ON AMAZON
Fluke
Fluke
Fluke 1AC II VoltAlert - Non-Contact Voltage Detector Pen CAT IV 1000V
45% Discount Free Shipping
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#10

  • EASY TO USE: The portable VoltAlert AC non-contact voltage testers from Fluke are simple and straightforward to operate – just touch the tip to a terminal strip, outlet, or supply cable. When the tip glows red and the unit beeps, you know there's voltage present. The audible tone can also be switched off if silent operation is desired.
  • NON-CONTACT: Detects voltage without the need for metallic contact. Senses the steady state electrostatic field produced by AC voltage through insulation without requiring contact to the bare conductor. A red glow at the tip and a beeping noise (if not switched OFF) indicates the presence of voltage.
  • CAT IV 1000V AC VOLTAGE: Voltage detection of 200 to 1000 V ac, a wide range to suit a broad spectrum of residential, commercial and industrial needs. Electricians, maintenance, service, safety personnel, and homeowners can quickly test for energized circuits and defective grounds on the factory floor, in the shop, or at home.
  • VOLTBEAT TECHNOLOGY: With innovative VoltBeat technology and continuous self-test – so you always know it's working. VoltBeat is a self-test feature for visual confirmation of battery and system integrity, and power on. It provides a double-flash every two seconds during normal operation. The Fluke VoltAlert Tester automatically powers off to save battery life after 5 minutes of non-use. When the battery voltage drops below two volts, VoltBeat provides visual indication by stopping the VoltBeat flash.
  • BUY WITH CONFIDENCE: Since being founded in Connecticut, USA in 1948, Fluke has become the world leader in test and detection equipment trusted by professionals. Use the Fluke 1AC II if you need a quality tool for general voltage detection. Tester comes complete with 2 x AAA batteries installed and a 2 year warranty as standard.
  • £23.70 ON AMAZON