Kensington Nuclear Reader

local PORT = 47842
local modem = peripheral.wrap("left") -- wireless modem side
local reader = "top" -- thermal monitor side
modem.open(PORT)

while true do
    term.clear()
    if redstone.getInput(reader) then
        modem.transmit(PORT, PORT, "WARNING")
        print("WARNING")
    else
        modem.transmit(PORT, PORT, "CLEAR")
        print("CLEAR")
    end
    os.sleep(1)
end