550 g pocket scale accurate to a tenth of a gram

Regular price ¥4,400
Regular price Sale price ¥4,400
¥1,467 × 3 with no fees

This compact electronic scale weighs up to 550 g and displays to a tenth of a gram. It is used to measure out a fertiliser, a supplement or a powdered nutrient, even in very small quantities, for aquaponics as well as gardening.

Dosing and measuring
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The summary

  • What it weighs: up to 550 g, with a display reading to a tenth of a gram.
  • What it is for: measuring out a powdered fertiliser, a salt or the feed ration for the fish in a small system.
  • How to tare: place the container on it, press tare, then pour.
  • What is included: the scale, its lid and two AAA batteries.

550 g capacity, for measuring out a fertiliser or a powdered nutrient

The Kenex Eclipse pocket scale weighs up to 550 g and reads to a tenth of a gram, under a clear lid that doubles as a tray. It measures out a powdered fertiliser, a salt or the fish ration for a small aquaponic system, where a kitchen scale rounds to the nearest gram.

This pocket precision scale weighs up to 550 grams and reads to a tenth of a gram. It fits in the hand, and you can measure out on the potting bench what a kitchen scale cannot weigh: half a gram of powder, a dose of a few grams, a mixture to be divided.

⚖️ 550 g to the nearest 0.1 g

The stainless steel platform takes the powder directly or a small container. The tare works across the whole range: you place a cup, reset the display to zero, and from then on you read only what you pour. The backlit screen, which retracts, pops out of the casing at the press of a button and is then stowed away safe from knocks. Calibration is automatic, and an overload safeguard protects the sensor. The transparent lid protects the platform during transport, then turns over to serve as a weighing tray.

Four units

The scales display four units, including grams and ounces.

Automatic shut-off

It switches itself off after 1 to 3 minutes without weighing, which saves the batteries.

Two AAA batteries

They are supplied with the scale, which is ready to weigh as soon as it is opened.

🧪 Dosing a soluble powder

The 0.1 gram resolution comes into its own with small doses. DTPA chelated iron is dosed at a few grams in a small volume, where an error of one gram changes the dose markedly. The same scale also weighs out the 18 grams of a maintenance dose, and all the powdered supplements in the fertilisers and mineral supplements section.

Chelated iron is weighed to the tenth

If you are treating chlorosis in the leaves, chelated iron DTPA 11% is the supplement for which this resolution matters most. Each dose is weighed to a tenth of a gram, and you prepare each application at the same concentration.

The 0.1 g resolution is the smallest increment the display shows. The accuracy of each reading also depends on where the scale is placed: put it on a hard, level surface, away from an open window or a fan, and wait for the display to stabilise before reading. For a dose of less than a gram, weigh 10 times the dose instead, dissolve it in 1 litre of water, then draw off a tenth of this stock solution with a syringe or measuring cup: the weighing error is divided accordingly.

🐟 Aquaponics doses

In aquaponics, additions are calculated in grams for a few hundred litres of water, a scale at which a kitchen scale graduated in grams lacks precision. DTPA chelated iron is dosed at roughly 18 g per 1,000 L to aim for 2 ppm of iron: a 300 L system therefore needs 5.4 g, and an error of one gram represents nearly 20% of the dose. Potassium bicarbonate, which raises alkalinity as explained in the article on pH regulation, is weighed out in the same way: 36 g per cubic metre per degree of KH, or 10.8 g to gain one degree on those same 300 L.

🧽 Maintenance and storage

The 550 g capacity includes the container: a 30 g cup therefore leaves 520 g for the powder or liquid. Do not exceed it, and place the load gently rather than letting it drop onto the platform, as the weighing sensor is sensitive to impact. Wipe the platform with a dry cloth after each weighing of fertiliser, since these powders attract moisture, then close the lid. The box contains the scale, its transparent cover and two AAA batteries; when closed, it measures about ten centimetres on each side and fits in a drawer alongside your horticulture accessories.

🔎 Checking the scale

A pocket scale is checked in the same way as a thermometer, against a known reference. Place the 100 g weight on the empty pan after taring, note the reading, and repeat this check after every journey or change of season. If the discrepancy grows from one check to the next, first replace the batteries, since too low a voltage distorts the reading, then repeat the measurement. For doses below a gram, the mini scale accurate to 0.01 g takes over, and for feeding a large pond, the 3 kg scale. For sale by weight, the regulations require an approved instrument, and this pocket scale remains reserved for measuring out doses for your crops.

Technical specifications

Weighing

Range
550 g
Resolution
0.1 g
Units
4 units, including g and oz
Tare
Across the whole rangePlace the container on the scale, tare it, then pour.

The device

Feeding
2 AAA batteries included
Automatic shut-off
After 1 to 3 minIt saves the batteries between doses.
Screen
Backlit LCD, retractableIt stores in the case between weighings
Lid
Transparent, doubles as a trayTurned upside down, it takes the powder; tare it first

In the box

  • 1 precision scale with a stainless steel platform
  • 1 transparent lid
  • 2 AAA batteries

Manufacturer values from Kenex (Eclipse ECL-550 model), supplemented by its resellers. Iron and bicarbonate doses: datasheets for those two products.

Manufacturer and product safety

Manufacturer
Kenex (Electro-Medical) Limited
Postal address
Unit 17, RO24 Greenway, Harlow Business Park, Harlow, Essex CM19 5QB, Royaume-Uni

Information provided under Regulation (EU) 2023/988 on general product safety.

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delivery time

A compact set of scales supplied with its two batteries: the parcel stays small and travels with the rest of your order. The exact shipping costs and final delivery times are shown in the basket once you have entered your address.

Frequently asked questions

8 questions

6 key questions, 8 in the detailed view

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