

🌱 Stay ahead of the curve—know your soil like a pro!
Delmhorst GB-1 Gypsum Sensor Blocks are precision-crafted soil moisture sensors featuring gypsum cast around dual stainless steel electrodes. Engineered for uniformity and rapid response, these blocks provide accurate moisture readings at various soil depths, especially in soils with water holding capacity of 1.2 inches/ft or more. Easy to install and battery-free, they are trusted by professionals for extensive soil moisture monitoring.
| ASIN | B0002IKRUS |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #1,443,843 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #577 in Moisture Meters |
| Brand | Delmhorst Instrument |
| Customer Reviews | 5.0 5.0 out of 5 stars (2) |
| Date First Available | July 1, 2004 |
| Global Trade Identification Number | 00404175000139 |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 1 pounds |
| Item dimensions L x W x H | 1 x 1 x 6 inches |
| Item model number | GB-1 |
| Manufacturer | Delmhorst Instrument Co. |
| Material | Gypsum |
| Output Type | Push-Pull |
| Part Number | 77054 |
| Product Dimensions | 1 x 1 x 6 inches |
| Specific Uses For Product | soil monitoring |
| Style | Modern |
| UPC | 404175000139 |
| Warranty Description | 90 days |
C**T
For the gardener who irrigates
Most moisture sensors measure conductivity, and are six inches to a foot or so in length. These are inexpensive well made gypsum blocks that measure soil moisture at any depth from a few inches down to four feet. You bury the block leaving the wire exposed. The blocks have a resistance of several hundred megohms when dry, and a few hundred kilohms when wet. The company makes a rugged field grade meter, or you can make/buy one if you are electonically savvy. These are great little items.
M**O
Five Stars
Super!
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