Fluke T90 Voltage & Continuity Tester

  • Detects AC/DC voltage from 12V–690V
  • Compact with LED and audible alerts
  • Works even with discharged batteries
  • IP54 rated with ergonomic probe dock
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£60.00 (ex VAT)

£72.00 (inc VAT)

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  • Detects AC/DC voltage from 12V–690V
  • Compact with LED and audible alerts
  • Works even with discharged batteries
  • IP54 rated with ergonomic probe dock
Free Shipping

Spend over £100 on any new goods order and receive automatic free shipping

Rewards

Points make purchases! For every £1 spent, earn back 1p that can be spent on any future new goods purchase

Our Price Promise

We offer a Price Match Promise! Find an equivalent tester for a cheaper price on a competitor site, and we’ll do our best to match it

Express Delivery & Calibration

Express Delivery is currently unavailable for customers wishing to add calibration to their New Goods order. For more information, visit our Delivery Information page. 

£60.00 (ex VAT)

£72.00 (inc VAT)

Earn 60 points

In Stock - Express Delivery Available
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Fluke T90 Voltage & Continuity Tester

The Fluke T90 Voltage & Continuity Tester is the ideal entry-level solution for reliable voltage and continuity testing. Its compact design makes it easy to handle, while clear visual and audible indicators ensure accurate, instant feedback in real-world environments. Designed with user safety and efficiency in mind, the Fluke T90 helps professionals work with confidence.

Built to meet Fluke’s high standards, this tester includes robust construction and an IP54 rating for dust and moisture resistance. The flexible cable has been tested to withstand over 5,000 bends at a 150° rotation, offering durability that far exceeds typical requirements. The Fluke T90 Voltage & Continuity Tester also provides safety-rated performance compliant with GS38 and both CAT II 690V and CAT III 600V standards.

Practical, Visible, Reliable

Whether you’re working in low-light areas or noisy environments, the Fluke T90 ensures clear communication through its bright LED indicators and audible alerts. The included GS38 compliant probe caps improve safety during use, while the improved docking system allows for secure and easy storage between tests.

Built for Efficiency on the Job

The Fluke T90 Voltage & Continuity Tester is powered by two lightweight AAA batteries. Even if the batteries fail, the unit will still indicate the presence of voltage — a critical safety feature in the field. With measurement capabilities ranging from 12V to 690V and continuity testing up to 400kΩ, the Fluke T90 offers all the essential functions required for day-to-day electrical work.

Key Features
  • Detects both AC and DC voltage from 12V to 690V
  • Continuity measurement range up to 400kΩ with audible confirmation
  • Clear LED indicators provide easy-to-read visual feedback
  • Functions even with discharged batteries for added safety
  • Compact, lightweight design ideal for daily use
  • Rugged cable rated to 5,000 bends at 150° rotation
  • Probe caps meet GS38 safety requirements
  • IP54 rated for resistance to dust and moisture
  • Secure and improved probe docking system
  • Operates on two standard AAA batteries
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Fluke T90 Voltage & Continuity Tester

Reliable testing starts with clear results, and the Fluke T90 Voltage & Continuity Tester delivers this on every job. It detects both AC and DC voltage across common working ranges. Clear LED indicators and audible alerts help confirm circuit status quickly.

Built for routine electrical work, this tester supports safe working even in demanding conditions. The Fluke T90 continues to indicate voltage if the batteries are fully discharged. As a result, users gain extra reassurance when checking live circuits.

Clear feedback in every environment

Bright LEDs provide instant visual confirmation in low-light areas. Audible alerts support work in noisy sites where visual checks alone may not be enough. The Fluke T90 also includes GS38 compliant probe caps to help reduce risk during testing.

Designed for daily site use

A slim housing and secure probe docking make storage simple between tasks. The dual-insulated cable resists repeated bending during normal use. This design helps extend service life while maintaining consistent performance.

Durability remains a key focus throughout the tester design. With IP54 protection, the Fluke T90 resists dust and moisture commonly found on site. Combined with Fluke safety ratings, it supports confident testing during installation and maintenance work.

Key Features
  • Detects both AC and DC voltage from 12V to 690V
  • Continuity measurement range up to 400kΩ with audible confirmation
  • Clear LED indicators provide easy-to-read visual feedback
  • Functions even with discharged batteries for added safety
  • Compact, lightweight design ideal for daily use
  • Rugged cable rated to 5,000 bends at 150° rotation
  • Probe caps meet GS38 safety requirements
  • IP54 rated for resistance to dust and moisture
  • Secure and improved probe docking system
  • Operates on two standard AAA batteries

 

Technical specifications
SpecificationDetails
Voltage measurement range12V to 690V AC and DC
Continuity measurement0 to 400 kΩ
Frequency response0, 40 to 400 Hz
LED response timeLess than 0.5 seconds
Input impedance200 kΩ
Current draw at 690V3.5 mA
Current draw at 230V1.15 mA
Safety classificationCAT II 690V and CAT III 600V
Ingress protection ratingIP54
Power supplyTwo AAA batteries
Battery-free operationVoltage detection active
Dimensions26 cm x 7 cm x 3.8 cm
Weight280 g
Country of originGreat Britain
WarrantyTwo year manufacturer warranty

 

Comparison table of Fluke two-pole testers
FeatureT90T110T130T150
Voltage range12–690V12–690V6–690V6–690V
Continuity testingYesYesYesYes
LED indicatorYesYesYesYes
LCD displayNoNoYesYes
Phase rotation testNoYesYesYes
Resistance measurementNoNoNoYes
Single-pole phase testYesYesYesYes
Battery-free voltage detectYesYesYesYes
IP ratingIP54IP64IP64IP64

What’s Included
  • Fluke T90 Voltage & Continuity Tester
  • 2 x AAA batteries (pre-installed)
  • GS38 compliant probe caps
  • User manual

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