The Fluke 1587FC Insulation Multimeter is an advanced diagnostic tool designed to keep you safe while uncovering hidden electrical issues. With its Fluke Connect capability, this multimeter allows you to quickly identify problems, communicate your findings wirelessly, and complete your work efficiently from a safe distance. Whether you’re measuring insulation resistance, voltage, or continuity, the Fluke 1587FC streamlines your workflow, enabling you to focus on what matters most: ensuring safety and quality in your electrical work.
Key Features:
Dual capability for measuring insulation resistance, ac/dc voltage, dc millivolts, and resistance, enhancing versatility for various applications.
Fluke Connect-enabled for remote monitoring, allowing you to stay safe while reviewing measurements on your smartphone.
Automated temperature compensation ensures accurate baselines and enables relevant historical comparisons for consistent results.
Memory storage through Fluke Connect eliminates the need for manual record-keeping, reducing errors and providing historical data tracking.
Includes safety features such as live circuit detection to prevent insulation tests when voltage exceeds 30 V and auto-discharge of capacitive voltage for user protection.
What’s Included:
Fluke 1587 FC Insulation Multimeter
Remote probe
Test leads
Alligator clips
K-type thermocouple
Soft case
User documentation
Three-year standard warranty (extendable to five years through product registration within 45 days of purchase)
Specifications: Fluke 1587 FC Insulation Multimeter
Electrical Specifications
AC voltage measurement
Range
600.0 mV
Resolution
0.1 mV
Accuracy 50 Hz to 60 Hz ±(% of Rdg + Counts)
±(1% + 3)
Accuracy 60 Hz to 5000 Hz ±(% of Rdg + Counts)
±(2% + 3)
6.000 V
Resolution
0.001 V
Accuracy 50 Hz to 60 Hz ±(% of Rdg + Counts)
±(1% + 3)
Accuracy 60 Hz to 5000 Hz ±(% of Rdg + Counts)
±(2% + 3)
60.00 V
Resolution
0.01 V
Accuracy 50 Hz to 60 Hz ±(% of Rdg + Counts)
±(1% + 3)
Accuracy 60 Hz to 5000 Hz ±(% of Rdg + Counts)
±(2% + 3)
600.0 V
Resolution
0.1 V
Accuracy 50 Hz to 60 Hz ±(% of Rdg + Counts)
±(1% + 3)
Accuracy 60 Hz to 5000 Hz ±(% of Rdg + Counts)
±(2% + 3)¹
1000 V
Resolution
1 V
Accuracy 50 Hz to 60 Hz ±(% of Rdg + Counts)
±(2% + 3)
Accuracy 60 Hz to 5000 Hz ±(% of Rdg + Counts)
±(2% + 3)¹
¹ 1 kHz bandwidth
Low-Pass Filter Voltage
Range
600.0 mV
Resolution
0.1 mV
Accuracy 50 Hz to 60 Hz ±(% of Rdg + Counts)
±(1% + 3)
Accuracy 60 Hz to 400 Hz ±(% of Rdg + Counts)
+(2% + 3), -(6% – 3)
6.000 V
Resolution
0.001 V
Accuracy 50 Hz to 60 Hz ±(% of Rdg + Counts)
±(1% + 3)
Accuracy 60 Hz to 400 Hz ±(% of Rdg + Counts)
+(2% + 3), -(6% – 3)
60.00 V
Resolution
0.01 V
Accuracy 50 Hz to 60 Hz ±(% of Rdg + Counts)
±(1% + 3)
Accuracy 60 Hz to 400 Hz ±(% of Rdg + Counts)
+(2% + 3), -(6% – 3)
600.0 V
Resolution
0.1 V
Accuracy 50 Hz to 60 Hz ±(% of Rdg + Counts)
±(1% + 3)
Accuracy 60 Hz to 400 Hz ±(% of Rdg + Counts)
+(2% + 3), -(6% – 3)
1000 V
Resolution
1 V
Accuracy 50 Hz to 60 Hz ±(% of Rdg + Counts)
±(2% + 3)
Accuracy 60 Hz to 400 Hz ±(% of Rdg + Counts)
+(2% + 3), -(6% – 3)
DC Voltage Measurement
Range
Resolution
Accuracy ±(% of Rdg + Counts)
6.000 V dc
0.001 V
±(0.09% + 2)
60.00 V dc
0.01 V
±(0.09% + 2)
600.0 V dc
0.1 V
±(0.09% + 2)
1000 V dc
1 V
±(0.09% + 2)
Input impedance
10 MΩ (nominal), <100 pF
Normal mode rejection ratio
>60 dB @ 50 Hz or 60 Hz
Common mode rejection ratio
>120 dB @ dc, 50 Hz or 60 Hz (1 k unbalance)
Accuracies apply to ± 100% of range
DC Millivolts Measurement
Range
Resolution
Accuracy ±(% of Rdg + Counts)
600.0 mVdc
0.1 mV
±(0.1% + 1)
DC and AC Current Measurement
AC 45 Hz to 1000 Hz
Range
400 mA
Resolution
0.1 mA
Accuracy ±(% of Rdg+Counts)
±(1.5% + 2)¹
Burden voltage (Typical)
2 mV/mA
Range
60 mA
Resolution
0.01 mA
Accuracy ±(% of Rdg+Counts)
±(1.5% + 2)¹
Burden voltage (Typical)
2 mV/mA
DC
Range
400 mA
Resolution
0.1 mA
Accuracy ±(% of Rdg+Counts)
±(0.2% + 2)
Burden voltage (Typical)
2 mV/mA
Range
60 mA
Resolution
0.01 mA
Accuracy ±(% of Rdg+Counts)
±(0.2% + 2)
Burden voltage (Typical)
2 mV/mA
Overload
600 mA for 2 minutes maximum
Fuse protection for mA input
0.44 mA, 1000 V, IR 10 kA
AC conversion
Inputs are ac-coupled and calibrated to the rms value of sine wave input
Conversions are true-rms responding and specified from 5% to 100% of range. Input signal crest factor can be up to 3 up to 300 mA, decreasing linearly to crest factor ≤1.5 at 600 mA. For non-sinusoidal waveforms add +(2% reading + 2% FS) typical, for a crest factor up to 3.
¹ 1 kHz bandwidth
Ohms Measurement
Range
Resolution
Accuracy +(% of Rdg+Counts)¹
600.0 Ω
0.1 Ω
±(0.9% + 2)
6.000 kΩ
0.001 kΩ
±(0.9% + 2)
60.00 kΩ
0.01 kΩ
±(0.9% + 2)
600.0 kΩ
0.1 KΩ
±(0.9% + 2)
6.000 MΩ
0.001 MΩ
±(0.9% + 2)
50.0 MΩ ²
0.01 MΩ
±(1.5% + 3)
Overload protection
1000 V rms or dc
Open circuit test voltage
<8.0 V dc
Short circuit current
<1.1 mA
¹ Accuracies apply from 0% to 100% of range
² Up to 80% relative humidity
Diode Test
Diode test indication
Display voltage drop: 0.6 V at1.0 mA nominal test current:
Accuracy
±(2% + 3)
Continuity Test
Continuity indication
Continuous audible tone for testresistance below 25 Ω and off above 100 Ω. Maximum Reading; 1000 Ω
Open circuit voltage
<8.0 V
Short circuit current
1.0 mA typical
Overload protection
1000 V rms
Response time
>1 m sec
Frequency Measurement
Range
Resolution
Accuracy ±(% of Rdg+Counts)
99.99 Hz
0.01 Hz
±(0.1% + 1)
999.9 Hz
0.1 Hz
±(0.1% + 1)
9.999 kHz
0.001 kHz
±(0.1% + 1)
99.99 kHz
0.01 kHz
±(0.1% + 1)
Frequency Counter Sensitivity
600.0 mV ac
V ac Sensitivity (RMS Sine Wave)¹ 5 Hz to 20 kHz
100.0 mV
V ac Sensitivity (RMS Sine Wave)¹ 20 kHz to 100 kHz
150.0 mV
DC Trigger Levels¹ to 20 kHz²
NA
6.0 V
V ac Sensitivity (RMS Sine Wave)¹ 5 Hz to 20 kHz
1.0 V
V ac Sensitivity (RMS Sine Wave)¹ 20 kHz to 100 kHz
1.5 V
DC Trigger Levels¹ to 20 kHz²
-400.0 mV and 2.5 V
60.0 V
V ac Sensitivity (RMS Sine Wave)¹ 5 Hz to 20 kHz
10.0 V
V ac Sensitivity (RMS Sine Wave)¹ 20 kHz to 100 kHz
36.0 V
DC Trigger Levels¹ to 20 kHz²
1.2 V and 4.0 V
600.0 V
V ac Sensitivity (RMS Sine Wave)¹ 5 Hz to 20 kHz
100.0 V
V ac Sensitivity (RMS Sine Wave)¹ 20 kHz to 100 kHz
–
DC Trigger Levels¹ to 20 kHz²
12.0 V and 40.0 V
1000.0 V
V ac Sensitivity (RMS Sine Wave)¹ 5 Hz to 20 kHz
300.0 V
V ac Sensitivity (RMS Sine Wave)¹ 20 kHz to 100 kHz
–
DC Trigger Levels¹ to 20 kHz²
12.0 V and 40.0 V
¹ Maximum input for specified accuracy = 10x range (1000 V max). Noise at low frequencies and amplitudes may affect accuracy
² Usable to 100 kHz with full scale input
Capacitance
Range
Resolution
Accuracy ±(% of Rdg+Counts)
1000 nF
1 nF
±(1.2% + 2)
10.00 μF
0.01 μF
±(1.2% + 2)
100.0 μF
0.1 μF
±(1.2% ±90 counts)
9999 μF
1 μF
±(1.2% ±90 counts)
Temperature Measurement
Range
Resolution
Accuracy ±(% of Rdg+Counts)¹
-40 ° C to 537 ° C
0.1 °C
±(1% + 10 counts)
-40 ° F to 998 ° F
0.1 °F
±(1% + 18 counts)
¹ Accuracies apply following 90 minutes settling time after a change in the ambient temperature of the instrument
Insulation Specifications
Measurement range
0.01 MΩ to 2 GΩ
Test voltages
50, 100, 250, 500, 1000 V
Test voltage accuracy
+20%, -0%
Short-circuit test current
1 mA nominal
Auto discharge
Discharge time <0.5 second for C = 1 μF or less
Live circuit detection
Inhibit test if terminal voltage > 30 V prior to initialization of test
Maximum capacitive load
Operable with up to 1 μF load
Output Voltage
50 V (0% to +20%)
Display range
0.01 to 6.00 MΩ
Resolution
0.01 MΩ
Test current
1 mA @ 50 kΩ
Resistance accuracy ±(% of Rdg + Counts)
±(3% + 5 counts)
Display range
6.0 to 50.0 MΩ
Resolution
0.1 MΩ
Test current
1 mA @ 50 kΩ
Resistance accuracy ±(% of Rdg + Counts)
±(3% + 5 counts)
100 V (0% to +20%)
Display range
0.01 to 6.00 MΩ
Resolution
0.01 MΩ
Test current
1 mA @ 100 kΩ
Resistance accuracy ±(% of Rdg + Counts)
±(3% + 5 counts)
Display range
6.0 to 60.0 MΩ
Resolution
0.1 MΩ
Test current
1 mA @ 100 kΩ
Resistance accuracy ±(% of Rdg + Counts)
±(3% + 5 counts)
Display range
60 to 100 MΩ
Resolution
1 MΩ
Test current
1 mA @ 100 kΩ
Resistance accuracy ±(% of Rdg + Counts)
±(3% + 5 counts)
250 V (0% to +20%)
Display range
0.1 to 60.0 MΩ
Resolution
0.1 MΩ
Test current
1 mA @ 250 kΩ
Resistance accuracy ±(% of Rdg + Counts)
±(1.5% + 5 counts)
Display range
60 to 250 MΩ
Resolution
1 MΩ
Test current
1 mA @ 250 kΩ
Resistance accuracy ±(% of Rdg + Counts)
±(1.5% + 5 counts)
500 V (0% to +20%)
Display range
0.1 to 60.0 MΩ
Resolution
0.1 MΩ
Test current
1 mA @ 500 kΩ
Resistance accuracy ±(% of Rdg + Counts)
±(1.5% + 5 counts)
Display range
60 to 500 MΩ
Resolution
1 MΩ
Test current
1 mA @ 500 kΩ
Resistance accuracy ±(% of Rdg + Counts)
±(1.5% + 5 counts)
1000 V (0% to +20%)
Display range
0.1 to 60.0 MΩ
Resolution
0.1 MΩ
Test current
1 mA @ 1 MΩ
Resistance accuracy ±(% of Rdg + Counts)
±(1.5% + 5 counts)
Display range
60 to 600 MΩ
Resolution
1 MΩ
Test current
1 mA @ 1 MΩ
Resistance accuracy ±(% of Rdg + Counts)
±(1.5% + 5 counts)
Display range
0.6 to 2.0 GΩ
Resolution
100 MΩ
Test current
1 mA @ 1 MΩ
Resistance accuracy ±(% of Rdg + Counts)
±(10% + 3 counts)
General Specifications
Maximum voltage applied to any terminal and common
1000 V
Storage temperature
-40 °C to 60 °C (-40 °F to 140 °F)
Operating temperature
-20 °C to 55 °C (-4 °F to 131 °F)
Temperature coefficient
0.05 x (specified accuracy) per °C for temperatures <18 °C or >28 °C (<64 °F or >82 °F)
Relative humidity
Noncondensing
0% to 95% @ 10 °C to 30 °C (50 °F to 86 °F)
0% to 75% @ 30 °C to 40 °C (86 °F to 104 °F)
0% to 40% @ 40 °C to 55 °C (104 °F to 131 °F)
Vibration
Random, 2 g, 5-500 Hz per MIL-PRF-28800F, Class 2 instrument
Radio frequency communication
2.4 GHz ISM Band
Radio frequency certification
FCC: T68-FBLE, IC: 6627A-FBLE
Electromagnetic Compatibility
International
IEC 61326-1:Portable Electromagnetic Environment; IEC 61326-2-2 CISPR 11: Group 1, Class A
Group 1: Equipment has intentionally generated and/or uses conductively-coupled radio frequency energy that is necessary for the internal function of the equipment itself.
Class A: Equipment is suitable for use in all establishments other than domestic and those directly connected to a low-voltage power supply network that supplies buildings used for domestic purposes. There may be potential difficulties in ensuring electromagnetic compatibility in other environments due to conducted and radiated disturbances.
Emissions that exceed the levels required by CISPR 11 can occur when the equipment is connected to a test object. The equipment may not meet the immunity requirements of this standard when test leads and/or test probes are connected.
Korea (KCC)
Class A Equipment (Industrial Broadcasting & Communication Equipment)
Class A: Equipment meets requirements for industrial electromagnetic wave equipment and the seller or user should take notice of it. This equipment is intended for use in business environments and not to be used in homes.
USA (FCC)
47 CFR 15 subpart B. This product is considered an exempt device per clause 15.103.
Enclosure protection
IEC 60529: IP40 (non-operating)
Safety
IEC 61010-1
Pollution Degree 2
IEC 61010-2-033
CAT IV 600 V / CAT III 1000 V
Batteries
Four AA batteries (IEC LR6)
Battery life
Meter use 1000 hours; Insulation test use: Meter can perform at least 1000 insulation tests with fresh alkaline batteries at room temperature. These are standard tests of 1000 V into 1 MΩ with a duty cycle of 5 seconds on and 25 seconds off.
Size (H x W x L)
5.0 x 10.0 x 20.3 cm (1.97 x 3.94 x 8.00 in)
Weight
550 g (1.2 lb)
Altitude
Operating
2000 m
Storage
12,000 m
Over-range capability
110% of range except for capacitance which is 100%
Frequency overload protection
<107 V Hz
Fuse protection for mA input
0.44A, 1000 V, IR 10 kA
What’s in the box:
Fluke 1587 FC Insulation Multimeter
Remote probe
Test leads
Alligator clips
K-type thermocouple
Soft case
User documentation
Three-year standard warranty; extendable to five-years through product registration within 45 days of purchase
🚚 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.