GB-1
Soil Blocks
$140.00
Gypsum blocks are made of gypsum, cast around two concentric, stainless-steel electrodes. Manufactured under controlled conditions for uniformity and fast response to soil moisture changes. The GB-1 measures ⅞'' in diameter and 1 ⅛'' long and includes a 6' lead wire. Easy to install at various depths to determine optimal moisture profile for crops. Also available with a 25' lead wire (GB-2) and a 50' lead wire (GB-3).
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