Moisture indicator 30-50% in Box a 125 El. 1834112

Moisture indicator card for use with silica gel desiccant. Reversible. Indicates that relative humidity is 30, 40 or above 50% by changing color from blue to pink, or in other combinations as shown on the card. Supplied in a metal box.

3-spot 30-50% card 40x80mm. 125 per box

Electricity number: 1834112