Recording Timer & Kit, 8-12V AC only, 50 dots/sec

The IEC 8-12V. AC Recording Timer has been used in schools for many years. It seems to be almost indestructible. The heavy diecast base with the rubber feet allows the device to vibrate at 50Hz without the need to clamp it to the bench. The stem from the base permits it to be held on a retort stand for 'falling' experiments. The kit is complete with a 30m roll of white paper and a set of 25 carbon discs for marking the dots on the paper. Large 180m long x 16mm wide paper rolls (PA2670-006) and packs of 100x carbon discs (PA2670-008) are available separately as refills.