Thanko notification mails: tool to tell if have incoming mail
Thanko Notification Mails is a tool that can tell if there is incoming mail into the mailbox even tell how many letters in the box. This device consists of 2 parts that is censor placed inside the mailbox and display LED to inform the number of incoming mail. On the censor there is also an additional antenna so that we can put these censors up to a maximum of 100 m, while for the batteries, both using 9-volt battery.
Notification Mails Thanko sold at 4980 Yen or around $50.
