Geiger counter manufacturers and retailers are offering more affordable models to cash in on continued consumer radiation fears six months into the Fukushima triple meltdown crisis.

Consumers are snapping up the devices, which range in price from ¥10,000 to ¥1 million, to check radiation in their backyards and parks where they take their children. The cheaper models are proving the most popular.

Although the cheaper devices are generally of lower quality, they can still be effective if users have a good understanding of how they work, experts said.