Martindale CM69 AC TRMS Earth Leakage Clamp Meter, Max Current 60A ac CAT II 1000V

Martindale

£199.00 / £238.80 incl VAT

⚡ True RMS measurement
⚡ Shielded jaw for high repeatability
⚡ Voltage Resistance & Continuity
⚡ Auto power off & low battery indicator
⚡ Display backlight

Only 1 left in stock (can be backordered)

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SKU: MAR-CM69 Category: Brand:

Description

Martindale CM69 AC TRMS Earth Leakage Clamp Meter

Martindale CM69 AC TRMS Earth Leakage Clamp Meter is designed to help troubleshoot leakage currents and causes of unwanted RCD tripping, with an outstanding low current capability able to resolve down to 1µA, peak hold, and a switchable low pass filter, it is ideal for many applications such as:

  • Periodic measurement of leakage current at 50Hz to check for insulation deterioration
  • Accurate measurement of triplen neutral currents and other distorted waveforms
  • Differential current measurement for appliance testing

Effectively measure AC/DC voltage and resistance, as the 23mm jaw is designed to help minimise other conductor fields which can affect the accuracy of readings. Take AC current measurement from 0.1mA right up to 60A with a resolution of 0.001mA in the 6mA range.

You can also easily measure earth leakage current simply by clamping around the earth protective conductor, or measure the differential leakage current, by clamping around both live and neutral conductors. 

Key Features

  • AC/DC Voltage up to 600V
  • AC Current 6Ma – 60A
  • TRMS
  • Data Hold
  • Switchable Low Pass Filter
  • Resistance Measurement
  • Continuity Measurement
  • Backlit display
  • 23mm Jaw Size
  • Earth Leakage Test
  • Rugged design
  • Auto-ranging

What’s Included?

  • Martindale TL16 test leads
  • Soft carry case
  • Batteries
  • Manual

Specifications

Current AC6.000mA/60.00mA/600.0mA autoranging
Accuracy1% ± 5 dgt
High current AC6.000A/60.00A
Accuracy± 1% ± 5 dgt
Voltage AC60.00V/300.0V
Accuracy± 1% ± 3 dgt
Voltage DC60.00V/300.0V
Accuracy± 1% ± 2 dgt
Ohms600.0Ω to 600.0kΩ
Accuracy± 1% ± 2 dgt
Continuitybuzzer ≤ 60Ω
Max conductor20mm =Ø
Operating environment0°C to 40°C, <80% RH
FeaturesAuto power off, Low battery indication
Supply2 x 1.5V AAA
Weight270g approx
Dimensions206 x 76 x 34mm
IncludesTL16 leads, case, batteries and manual

Comparison

CM57CM69CM79
AC Current
DC Current
AC/DC Volts
Ohms
Frequency
Capacitance
Non-contact Voltage Detector
Auto ranging
Max Conductor Size25mm Ø
35x15mm
20mm Ø25mm Ø
45x15mm
True RMS
Min MaxPeak
Backlight
Auto Power Off
OtherLow pass filter
0.001mA resolution
SafetyCAT III 600VCAT III 600V
CAT IV 300V
CAT III 600V
  • Martindale CM69 AC TRMS Earth Leakage Clamp Meter
  • TL16 test leads
  • Soft carry case
  • Alkaline batteries
  • Manual
  • All Martindale clamp meters come with a 2 year warranty

🚚 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.

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