Deep wall probe with tapped handle
The same behind-the-wall probe as the 21-E, with a tapped handle so an extension pole can be screwed on for ceilings, high walls and anywhere a ladder would otherwise be needed.
Fitment
- Connects to any Delmhorst meter with an external electrode socket
- Fitted with 608 insulated contact pins — up to 3 1/4 inch (82.6 mm) penetration
- Tapped handle accepts a standard extension pole
- Uses the 305RET-0021 pin retainer
- Uses the 315CAB-0025 cable assembly
Specifications
| Model | 21-ET |
|---|---|
| Pins | 608, Teflon insulated except at the tip |
| Maximum penetration | 3 1/4 inches (82.6 mm) |
| Handle | Tapped for extension pole |
Where the tapped handle pays for itself
Ceiling cavities after a roof leak, the top of a stairwell, high-level wall linings in a commercial space. Anywhere you would otherwise be setting up a ladder to take one reading, and then moving it to take the next one. On a large loss that is the difference between mapping a ceiling properly and mapping the bits you could reach.
Frequently asked questions
Is the extension pole included?
No. The handle is tapped to accept one. Tell us what you are working on and we will help you match a pole.
Is it electrically the same as the 21-E?
Yes — same pins, same penetration, same readings. The handle is the only difference.
What if I need more than 3 1/4 inches?
The 21-ET/001 takes the longer 608/001 pins. Not currently stocked; ask us.
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.
