GHL Probes


All GHL measurement electrodes are made of the highest laboratory grade. They are durable, low maintenance, and matched to the highest German quality standards. Most models feature extra-long connection cables (m), which are specially made for use in the aquarium hobbyAll sensors are galvanically isolated and can therefore easily be used in parallel in any combination.

Why our delivery is awesome!

Just a few reasons why Charterhouse are the industry leaders

1 Hour Delivery Slot

We provide a 1 hour delivery slot for all Premium Next Day delivery services. No more waiting in all day.

SMS And Email Notification

Your delivery slot will be text and emailed to you. You can then submit a different day or request the parcel is left with a neighbour.

Weekend Deliveries

We now offer deliveries on both days of the weekend. These services can be selected at checkout.

Free Shipping Over £50

Spend over £50 on your order and qualify for free shipping. Next day and timed services available.

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Pay by Finance

We offer flexible monthly finance options. Credit is subject to application and status.

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Reward Points

As a thank you, we run the Charterhouse Points scheme. Earn points on every order.

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