Recording timer spare - paper roll, white, 180m. 16mm wide

Recording timer spare - paper roll, white, 180m. 16mm wide

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Item code
2670006
Recording timer spare, large Paper Roll
$8.25 $7.50
Recording Timer Paper Roll, large, 180m long x 16mm wide. White paper roll for marking with dots. A piece, long enough for the experiment, is normally torn off the roll and threaded through the paper guides on the platform with a carbon paper disc on top.