JBL Pond Thermometer
Floating pond thermometer

  • Conveniently monitors the pond temperature: floating pond thermometer with 5 m nylon cord makes the water temperature easy to read
  • Shows water temperature at 20 cm depth, temperature indication between 0 and 50 °C
  • Easy to use thanks to nylon cord
  • JBL recommendation: the right treatment for every temperature
  • Package contents: floating pond thermometer, Pond Thermometer, incl. cord
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Price: 8,19 €
Recommended retail price incl. VAT
You can find this item in your specialist and online shop

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Product information

The right pond care for every season
Each temperature requires different pond care to ensure a healthy pond environment. It depends on the water temperature whether you aerate additionally or select a special food. The colder the temperature, the slower the metabolism and the energy requirements of the fish are. The fish’s energy requirements increase conversely in summer. JBL has the right food for each season and each fish size. The high-quality ingredients are a direct result of the practical research of the JBL research team.

Convenient to use
JBL’s floating pond thermometer precisely indicates temperatures between 0 and 50 °C. Its 5 m long nylon cord makes the thermometer convenient to use. The temperature is measured at a depth of 20 cm.

JBL recommendation
Above 28 °C, aerate additionally.
Below 15 °C, feed dedicated low-temperature food.
At 4°C: switch off any technical equipment (e.g. water clarifier).


JBL Pond Thermometer

Art. no.:
EAN Code:
1 piece(s)
Volume packaging:
1.8 l
Gross weight:
115 g
Net weight:
75 g
Weight factor:
Packaging dimensions (l/h/w):
50/315/96 mm


Animal species: Goldfish, Koi, Mussels, Snails, Sturgeons, Veiltails
Animal size: For all animal sizes
Animal age group: All garden pond animals
Volume habitat: For all ponds
Material: plastic (ABS) / glass
Colour: white / blue

Electronic label / illuminant

Mercury: No
Dimmable: No
Why is the temperature in the pond measured at a depth of 20 cm?

When there is strong sunlight or night frost, the temperatures on the water surface in the pond change abruptly. In ponds with a larger volume the effect is softened and the water temperature doesn’t change as quickly. To ensure that you always get the correct water temperature, the measurement is taken at a depth of 20 cm below the water surface which is always correctly preset by the integrated floater in the JBL PondThermometer.

Blog (opinions & experiences)

Mild winters - what does that mean for garden ponds?

If you follow this advice, you will have a trouble-free winter for your garden pond and its inhabitants. And then we can all look forward to a beautiful spring!

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Pond care in summer - checklist and tips for algae-free fun

Looking out of the window this year, the popular summer season is presenting itself from another side. In this post, we would like to focus on the current situation, paying particular attention to the spring and autumn influences, which also play their part.

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Cold at the top and warm at the bottom - why you need a pond thermometer

If there is ice floating on the surface, the temperatures will be around freezing point there. But what about deeper down?

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Preparations for the autumn - algae prevention

If you take proper action now, by reducing the nutrient input and the existing nutrient sources, you can prevent algae problems in the coming year.

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I’ve had enough of this pond! Give up or save it?

Maybe you’ve felt like this: nothing works, the pond looks disastrous and you just don’t know what to do.

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My pond is losing water - where has it gone?

Die Sonne knallt auf den Teich und Sie füllen täglich Wasser nach? An manchen Tagen fragt man sich, „ist das wirklich normal und nur die Verdunstung“?

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Pond guide: you ask, we answer!

Ask us your technical question and we’ll answer your question in the comments with our team of experts.

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ProPond: What’s the best way to pamper my fish?

Cat and dog owners know this well. A treat here, a toy there and small gifts for the pets. But what’s the best and safest way to pamper your fish with a few extras?

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ProPond: What pond care do you really need and what really works?

A lot of pond owners neglect their regular maintenance and only react when problems occur and it’s often too late.

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Carbonate Hardness and pH: Life Insurance for your Pond

It’s a hard life for a pond: It is exposed to all weather conditions, it gets unwanted rainwater and it has to digest leaves, flower pollen and any particulate matter that enters.

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Algae in the Pond – An Outline

It can affect every pond owner. But if you are careful you can avert problems before they occur. In the following article we would like to introduce you to the different types of algae you may meet in the garden pond:

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A Good Start to the Garden Pond Season

The temperatures are slowly beginning to rise again and the nights are nearly frost-free. This is the right time to carry out a quick check in our garden shed.

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Is your pond boiling?

For pond owners an exact water temperature is important for the following reasons:

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Laboratories and calculators

Pond laboratory / calculator

This worldwide unique pond laboratory gives you dedicated support to combat problems with algae and cloudiness in your pond.
Reference guide (Themeworld)

Pond accessories

Which accessories make working easier? What is useful?

Oxygen and temperature

Why is the oxygen content so important? Which temperatures are critical?

Oxygen and temperature

Oxygen and temperature are among the main factors of your pond. These facts you need to know about that

Seasonal maintenance

Which seasonal maintenance is needed? What do you need to remember when?

Combating algae

Do you have green water or thread algae? We’ll give you long term solutions for algae problems

Pond cleaning

Leaves, sludge and fish excrement pollute your pond. The filter can’t manage everything. What preventative measures can you take?

The water tests – all parameters

You don't always have to do all the tests, any more than your doctor will look in your ears when your knee hurts. In the following table you will find brief information about where a water test can help.

Algae species

Do you have green water or thread algae? We’ll give you long term solutions for algae problems

Additional product information and downloads

  • JBL Pond Thermometer oam Magazin 2014 09

safety instructions

  • safety instruction for accessories
    • Filename:
Customer reviews


Overall rating: 4.7
3 public review(s) for this product.

0 Reviews

3 more reviews in other languages

3 Reviews in other languages

ShakaAnimalStudio - German

Perfekt für eine schnelle Kontrolle der Temperatur, er schwimmt bei mir ständig im Teich und funktioniert verlässlich.

_aqua4you_ - German

Super robust und relativ unauffällig im Teich. Die Themperaturen lassen sich allerdings "nur" auf 2°C genau ablesen, dies ist aber in den meisten Anwendungen ausreichend.

Unterwasserwelt_Bautzen - German

Mir gefällt er und misst die Temperaturen so wie es seine Aufgabe ist.

Kann ich empfehlen.

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