Fluke 1535 2.5kV Insulation Resistance Tester

Fluke

£1,119.00 / £1,342.80 incl VAT

⚡ Simplified troubleshooting for a wide range of environments
⚡ Selectable test voltages from 250V to 2500V
⚡ Resistance measurements up to 500GΩ
⚡ Automatic calculation of Polarization Index (PI) and Dielectric Absorption Ratio (DAR)
⚡ Backlit display for visibility in all lighting conditions

Available on back-order

SKU: FLU-1535 Category: Tag: Brand:

Description

Fluke 1535 2.5kV Insulation Resistance Tester

Fluke 1535 2.5kV Insulation Resistance Tester

Product Description:
The Fluke 1535 Insulation Resistance Tester is a versatile, high-performance tool designed for frontline troubleshooting in a variety of environments. It supports voltage testing at 250V, 500V, 1000V, and 2500V, making it suitable for a wide range of workloads. With an intuitive interface and a robust CAT IV 600 V rating, the 1535 offers accurate and reliable measurements, enabling users to perform insulation tests confidently. It features advanced calculations such as the Polarization Index (PI) and Dielectric Absorption Ratio (DAR), allowing users to assess insulation resistance to ground and calculate the ratio of megohms. The device is engineered to optimize productivity with a high measurement capacity—storing up to 1,300 measurements at 2500V or 6,500 at 250V. Equipped with a backlit display and visual/audio indicators, the Fluke 1535 is ideal for insulation testing across various job sites.

Key Features:

  • Simplified frontline troubleshooting in a range of environments
  • User-selectable test voltages from 250V to 2500V
  • Measures resistance up to 500GΩ
  • Intuitive, user-friendly interface
  • CAT IV 600V rating ensures stable and safe measurements
  • Automatically calculates Polarization Index (PI) and Dielectric Absorption Ratio (DAR)
  • Stores up to 1,300 measurements at 2500V and 6,500 at 250V
  • Increases productivity with high measurement capacity
  • Clear bar graph and numerical display for easy results reading
  • Backlit display for visibility in low-light environments
  • Supports AC/DC voltage and resistance measurements
  • Short circuit current up to 5mA for stable insulation measurements
  • Customizable testing parameters, including labels, test duration, and data storage
  • Easy data management with PC software for download and analysis
  • Ramp Test Mode for a linear voltage increase of 100V/s
  • Visual and audio continuity indicators for easy verification

What’s Included:

  • Fluke 1535 Insulation Resistance Tester
  • Test Leads with Alligator Clips (red, black, and green)
  • Probes (red and black)
  • Soft Carry Case

Fluke Product Comparison:

Features1587 FC157715031507153515371550FC1555FC
Test Voltages50V, 100V, 250V, 500V & 1000V500V & 1000V500V & 1000V50V, 100V, 500V & 1000V250V, 500V, 1000V & 2500V250V to 2500V250V to 5000V250V to 10000V
Insulation Resistance Range0.01MΩ to 2GΩ0.01MΩ to 600GΩ0.01MΩ to 2000GΩ0.01MΩ to 10GΩ1kΩ to 500GΩ200kΩ to 500GΩ200k to 1TΩ200k to 2TΩ
PI/DARXXX✓ + DD Test
Auto Discharge
Timed Ramp Test (breakdown)XXXXX
Pass/Fail ComparisonXXX
Est. # of IRT Tests100010002000200013001300VariousVarious
Voltage >30V Warning
MemoryFluke Connect AppXXXX
Fluke Connect CompatibilityXXXXX
Remote Test ProbeXXXX
Lo Ohms/Earth Bond ContinuityXX200mA source (10 mΩ resolution)200mA source (10 mΩ resolution)XXXX
AC/DC VoltsXXXXXX
DisplayDigital LCDDigital LCDDigital LCDDigital LCDDigital / Analogue LCDDigital / Analogue LCDDigital / Analogue LCDDigital / Analogue LCD
Hold/LockXX
  • 1555 10kV Insulation Resistance Tester
  • Fluke Connect IR to Wireless Connector IR3000FC/1550
  • Test cables with alligator clips (red, black, green)
  • Infrared adapter with interface cable
  • AC power cord
  • IP67 Hard Case (Colour may vary from image shown)
  • Certificate of Calibration
  • English manual
  • User’s manual on CD-ROM
  • Quick reference card
  • Software license agreement
  • Registration card
  • USB-IR cable installation guide
  • Heavy duty alligator clip leads

 

 

🚚 Testersmans Shipping Policy

Free Mainland GB Delivery Over £150

We offer free delivery on most mainland Great Britain orders over £150 (ex VAT).
This applies across England, Wales, and most of Scotland, excluding certain remote or offshore postcodes.

If your order total falls just short of £150, or you’re a returning customer, feel free to contact us — we may be able to offer a discount code or delivery workaround.
📞 01945 738112 | ✉️ [email protected]


📦 UK Delivery Options

We work with both Royal Mail and DHL to offer reliable and flexible delivery across the UK:

  • Royal Mail – Best suited for lighter parcels and for customers in remote regions, including the Highlands, Islands, and Northern Ireland.
  • DHL – Ideal for most mainland UK orders, providing fast, tracked delivery and excellent reliability for time-sensitive shipments.

Our checkout system automatically displays the available delivery services for your postcode and order weight, ensuring you always see the most suitable options.

Note: Heavy, bulky, or freight-only orders will be charged separately.
Our website is designed for quick, transactional purchases rather than bulk or palletised orders.
Please contact us in advance for a tailored freight quotation if your order falls into this category.


⏱ Dispatch & Delivery Timing

We aim to dispatch all in-stock orders promptly, but delivery depends on both when you order and which service you select.

  • UK orders: placed by 2:00 PM Monday–Friday are usually dispatched the same day.
  • International orders: placed by 2:00 PM Monday–Thursday are usually dispatched the same day.

Orders placed after these times are processed the next working day. This means delivery may occur the following day or later, depending on the courier and service selected.

Once dispatched, your chosen delivery service determines how quickly your parcel arrives:

  • Standard services We use Royal Mail Tracked 24 or DHL Parcel as our ‘Standard’ services. They are not guaranteed to arrive next working day.
  • Premium services (e.g. Royal Mail Special Delivery or DHL by Noon) offer guaranteed delivery windows.

If your order is time-sensitive, we strongly recommend choosing a guaranteed service or contacting us before ordering to confirm availability.

Please note: For logistical reasons, we may occasionally adjust the delivery method selected at checkout. For example, smaller items may be better suited to letterbox-friendly packaging or may be at greater risk of delay or loss via certain services. We actively monitor courier and postal service disruptions—including strikes and delays—and may modify shipping arrangements to help ensure timely and secure delivery.


📅 Busy Periods & Delays

We always aim to dispatch promptly, but delivery times may be affected by:

  • Seasonal demand (e.g. Christmas, bank holidays, or industry shutdowns)
  • Courier network delays outside our control
  • Supplier lead times or calibration requirements for certain equipment

If your delivery is time-critical, please contact us before ordering so we can confirm stock and courier availability.


🌍 International Shipping

We ship worldwide using UPS Express Saver® and other trusted global courier partners. All international shipments are tracked and generally dispatched Monday to Thursday to ensure smooth customs clearance and transit.

Estimated delivery times:

  • Europe: 1–2 working days
  • North America: 2–3 working days
  • Asia-Pacific & Rest of World: 3–5 working days

Delivery times vary depending on location, customs clearance, and local courier performance.


💰 Taxes, Customs & Import Duties

International customers are responsible for any applicable taxes, customs charges, or import duties.
These are not included in our product or shipping prices.

Your courier will typically provide a secure payment link for any import charges once your parcel reaches customs.
If import fees are refused and the parcel is returned, we will issue a refund minus all incurred shipping and return costs.


📍 Using Your Own Courier

If you would prefer to arrange collection via your own courier (UK or international), please contact us before placing your order to coordinate collection from our Wisbech warehouse.


📝 Important Notes

  • Please ensure your delivery address and contact number are correct at checkout.
  • Undelivered parcels may be returned to us after a short holding period.
  • Redelivery or return fees may apply, even if your order originally qualified for free delivery.
  • By placing an order, you confirm your understanding and acceptance of this policy.

Additional information

Weight10500 g
Dimensions52 × 22.5 × 45 cm

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