Temperature sensitive card

Item number: 448.WBK

£ 7.55

including 20% VAT , plus shipping

Available now!

Shipping time: 2 - 3 workdays

A fascinating gadget: wherever this black film is warmed up to 28°C it changes its colour to red. If the temperature rises above that, the colour changes to orange, yellow, green, blue, and purple. At 34°C it turns black again.

Explore your thermal surroundings!

8 x 14 cm

Other customers have also bought the following items
The Small Steam Yacht

The Small Steam Yacht

£ 4.95 *
The Galileo Telescope

The Galileo Telescope

£ 4.70 *
Achromatic Lens, f=99.6 mm, Ų 26 mm

Achromatic Lens, f=99.6 mm, Ų 26 mm

£ 4.75 *
The Newton Reflecting Telescope

The Newton Reflecting Telescope

£ 28.90 *
Solar Filter for the Newton Telescope

Solar Filter for the Newton Telescope

£ 5.90 *
The Hand Spectroscope

The Hand Spectroscope

£ 7.95 *