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NEST BOXES & REFUGEES FOR WILD GARDEN ANIMALS
MEDIDOR DE CORTEZA HAGLOF
Permite conocer con precisión el porcentaje de corteza. El espesor de la corteza se lee directamente después de hundir una pequeña sonda graduada en mm y pulgadas presionando con la palma de la mano. La sonda tiene una forma de penetrar que hace sentir una diferencia de presión sensible cuando llega a la madera.
Medida máxima: 5 cm.
Medida máxima: 5 cm.
