Two-pin electrode for wood, drywall and masonry
A general-purpose external electrode fitted with uninsulated A-111 pins. Where the meter’s own integral pins cannot reach — behind a fixture, on a vertical surface, at arm’s length — this puts the same reading where you need it.
Fitment
- Connects to any Delmhorst meter with an external electrode socket, including the BDX-30 and BDX-20
- Supplied with A-111 uninsulated pins — 7/16 inch (11.1 mm) penetration
- Also accepts 496 insulated pins for soft materials — 1 1/16 inch (27 mm) penetration in this electrode
- Also accepts 1849 insulated pins at 1/2 inch (12.7 mm)
- Uses the 315CAB-0025 cable assembly
Specifications
| Model | 22-E |
|---|---|
| Pins supplied | A-111, uninsulated, tapered point |
| Penetration with A-111 pins | 7/16 inch (11.1 mm) |
| Penetration with 496 pins | 1 1/16 inches (27 mm) |
| Penetration with 1849 pins | 1/2 inch (12.7 mm) |
| Materials | Wood, drywall, plaster, masonry |
Changing the pins changes what the reading means
With the standard uninsulated A-111 pins the meter reports the wettest point anywhere along the 11 mm of penetration. That is the right behaviour on drywall and thin stock, where you want to know whether there is moisture at all.
Fit insulated 496 or 1849 pins and the reading comes from the tip only, which is what you want when you are looking for a gradient. Same electrode, different question answered.
Note that the 496 reaches 1 1/16 inches (27 mm) when fitted to this electrode, slightly less than the 1 1/8 inches the pin achieves in a hammer electrode. The seating depth differs.
Service parts
Frequently asked questions
22-E or 22-ET?
The 22-ET has a tapped handle for an extension pole. Everything else is the same.
22-E or 2-E?
The 2-E uses the same pins as the meter’s integral electrode at 5/16 inch. The 22-E is a little deeper at 7/16 inch and accepts insulated pins, which the 2-E does not.
Can I use it on concrete?
It is rated for masonry, but a resistance reading on concrete is comparative, not an absolute moisture content. For a defensible concrete result you need in-situ relative humidity testing to ASTM F-2170 — that means the RH/T-S3 sensor and CS-3 sleeves.
Not sure which part suits your meter? Tell us the model and what you are testing and we will confirm the right one before you order.
