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ECO 8 and ECO 25 Thermoreactors for COD Analysis

8- and 25-position thermoreactors for Chemical Oxygen Demand (COD) with settable temperature (70, 100, 120, 150, 160 °C) and timer (30, 60, 120 minutes or continuous).
3 years warranty
ECO 8 F101A0127
ECO 25 F101A0125

Intuitive and Versatile

Intuitive and Versatile

The ECO 8 and ECO 25 provide easy and intuitive programming of both time and temperature, the two parameters required to perform analysis.
The user can switch from one value to another, being able to select between five temperatures (70, 100, 120, 150 and 160 °C) and four different timings (30, 60, 120 minutes or continuous).
The thermoreaction in small test tubes minimizes reagent consumption and reduces the equipment required, as only one heating block is needed to operate on multiple samples simultaneously.

Each test features a disposable vial that is inserted into the block, and requires small amounts of reagent and sample, lowering costs.
The unit automatically shuts down when the analysis time expires.

Safe and Easy to handle

Safe and Easy to handle

One of the distinguishing features of the ECO series is the high level of safety, which is possible thanks to the transparent test tube cover and the various temperature safety features that the various models are equipped with.

In addition, ECO 25 can support a test tube extractor, to simplify the handling of the tubes and their rapid identification, through an alpha-numeric system.
Increased comfort is another benefit, as the user can move all the tubes simultaneously.


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Construction material: Epoxy painted metal structure
Models: ECO 8 8 pos. (Ø16 mm) + 1 pos. (Ø22 mm)
ECO 25 25 pos. (Ø16 mm)
Set temperature: display visualization
Countdown: display visualization
End of the cycle: acoustic signal with automatic switch-off
Power: ECO 8 140 W
ECO 25 400 W
Weight: ECO 8 2 Kg (4.4 lb)
ECO 25 3.8 Kg (8.4 Ib)
Dimensions (WxHxD): ECO 8 135x95x230 mm (5.3x3.7x9.1 in)
ECO 25 155x95x275 mm (6.1x3.7x10.8 in)
Selectable working temperatures: 70, 100, 120, 150 and 160
Selectable working times: 30, 60, 120 or continuous
Temperature stability: ± 0.5 °C
Temperature homogeneity: ± 0.5 °C
Temperature precision: ± 1 °C
Reaching of set temperature: acoustic and visual signal
Countdown: visual signal
End of cycle: acoustic and visual signal
Probe interruption: acoustic and visual signal
Broken probe: acoustic and visual signal
Exceed temperature range: acoustic and visual signal

Brochures & Leaflets

VELP Scientifica invites you to download brochures and leaflets in order to explore our premium quality solutions and to have all the major key arguments, features and specifications of a product in your hands, in any place, and at any time.

Instruction manuals

Download the instruction manual that contains all the main technical specifications of the instrument and the necessary information for its correct use.

Comparison tables

Select the category of products you are interested in and this tool will give you an easy overview of what is available at VELP in order to find the product that is perfect for you. These comparison tables provide a brief description with side by side features from basic equipment to the most advanced analytical solutions.


Our compliance to statutory rules and regulations worldwide.
With the CE mark, VELP Scientifica declares that the products are designed and manufactured in compliance with the essential safety requirements of the European Directive on Safety.
The Certification Body (CB) Certificate is an international program created by the IECEE for the acceptance of product safety test results among participating laboratories and certification organizations around the world.
The cNEMKOus mark ensures this product is designed and manufactured in compliance with the International Directive on Safety IEC/EN 61010-1. The cNEMKOus mark has the same legal status as any other NRTL/SCC accredited marks, for U.S. and Canada.


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