Deep wall probe with tapped handle
The same behind-the-wall probe as the 21-E, with a tapped handle that takes an extension pole for ceilings, high walls and anywhere you would otherwise need a ladder.
Fitment
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 listed here; ask us.
For every other Delmhorst pin and retainer, see the Delmhorst Contact Pins and Retainers Guide (PDF). For timber species corrections, see our Australian Timber Species Correction Tables and the general Correction Tables.
Not sure which part fits your meter or electrode? Send us the model and what you are testing, and we will confirm the correct part before you order.
