The boxart.
Meteor Monitor was a small Blacktron spaceship released in 1990 and was the 'odd man out' of the Blacktron I series, as it had a black and white colour scheme instead of the traditional black and yellow that the other Blacktron I sets followed. The set included one Blacktron spaceman and had 29 pieces. It was also the only Blacktron I set released after 1988.