Advanced Microwave Hardware

Highest microwave power provides fast vessel heating

Highest microwave power provides fast vessel heating The ETHOS 1 is equipped with two magnetrons. Installed power is 1.600 watts allowing rapid heating of even high throughput rotors. Simultaneous digestion of 24 food samples.
The set target temperature of 180°C is reached in just 11 minutes, and digestion is completed in just 21 minutes.

All stainless-steel construction

The chassis of the ETHOS 1 is made of corrosion-resistant stainless steel, not molded plastic. The cavity and the door are plasma-coated with PTFE to protect the unit. Milestone’s warranty covers the cavity coating against corrosion for 5 years!

Homogeneous microwave distribution

A pyramid-shaped rotating diffuser evenly distributes the microwaves in the cavity. This unique design ensures optimal microwave distribution, preventing localized hot and cold spots.

Choice of pulsed or unpulsed microwave emission

The ETHOS 1 is the only microwave system allowing the user to select microwave emission in a pulsed or unpulsed mode, to safely control even the most exothermic reactions.


Pulsed 750 watt	Unpulsed 750 watt

Highest safety through unique pressure responsive door

In our continuing commitment to making the world’s safest laboratory microwave systems, Milestone has further improved the safety of the ETHOS 1 system, featuring a door opening and selfresealing mechanism. The door is mounted on spring-loaded steel bars. In case of sudden over-pressurization of the cavity, the door opens slightly for immediate and safe release of the overpressure. Microwave power is instantaneously cut off. Immediately afterward, the door is pulled back by the springs, resealing the cavity.This is the same ingenious principle of selfresealing employed in the Milestone pressure vessels! (US Patent 5,767,493)

Convenient, user-centric design

The ETHOS 1 door includes a shock resistant double-glass window, for easy viewing of the pressure vessels. The door opens downward and it can be used by the chemist as a working platform to facilitate the loading of the vessels into the microwave cavity.

Fast vessels air cooling for higher throughput

The ETHOS 1 is equipped with a heavy duty air flow system, placed above the microwave cavity. The air flow rapidly cools the external surfaces of the vessels. An acid resistant flexible hose connects the exhaust fan to a fume hood ensuring a safe working environment. Alternatively, the Milestone vessels can be cooled in a water bath, further reducing the total cooling time to less than 10 minutes.