The Delmhorst TechCheck Plus is a two-mode moisture meter for building inspectors, builders, flooring installers and maintenance contractors: pin mode for a moisture content figure, and a pinless scanner for finding moisture without marking the surface. It reads through its built-in pins, the scanner, or optional external electrodes.
It does not measure relative humidity. If you need RH — for concrete slab testing or drying records — choose one of the 3-in-1 meters below.
What is in this package
- TechCheck Plus meter
- Carrying case
- Additional contact pins
Specifications
| Wood scale |
6% to 60% moisture content |
| Drywall scale |
0.1% to 6% — displays %MC, which is a Delmhorst exclusive |
| Scan mode |
0 to 300 reference scale for other building materials |
| Accuracy |
±0.5% from 12–20% MC; ±2.0% from 20–30% MC |
| Alarm |
Audible, user adjustable to a preselected moisture content |
| Hold |
Freezes readings taken in hard-to-reach areas |
| Electrodes |
Accepts optional external Delmhorst electrodes |
| Warranty |
1 year (owner's manual) |
The reading hold is more useful than it sounds. Behind a cistern or under a stair, you take the reading where you cannot see the screen, then read it once your hand is back out.
Choosing between the Delmhorst multi-mode meters
Four meters cover this ground. They differ on three things: how many measurement modes they have, whether they store and export readings, and whether they measure relative humidity.
| Meter |
Modes |
Stores readings |
Suits |
| TechCheck Plus |
Pin and scan |
No |
Two-mode work without RH. Freezes a reading taken out of sight. |
| QuickNav |
Pin, scan, RH |
No |
Full 3-in-1 capability where you record readings in your own report. |
| TotalCheck |
Pin, scan, RH |
Up to 1,400 with date and time stamp |
Documented moisture records, job groupings, PC download. |
| Navigator Pro |
Pin, scan, RH |
Yes, with job and room structure |
Inspections and drying jobs needing readings organised by room and exported. |
The honest short version. If you do not need to store and download readings, the QuickNav does the same measuring as the Navigator Pro for considerably less — Delmhorst say so themselves. If your work is insurance-backed, or you hand over inspection or drying records, storage stops being a luxury and the TotalCheck or Navigator Pro earns the difference.
All four take the same external electrodes, so a 21-E or 26-ES bought with one meter carries across to the next.
Replacement pins and correction tables
Frequently asked questions
What does 3-in-1 actually mean?
Pin mode for a moisture content figure at a known depth, scan mode for finding moisture without marking the surface, and a thermo-hygrometer for air temperature and relative humidity. Three instruments in one body, so you are not carrying three.
Do I need storage?
Only if you have to prove what you found. For building reports, insurance and warranty work, a dated set of readings organised by room is what supports your findings. On maintenance work where you act on the reading and move on, storage is something you are paying for and not using.
Can I add electrodes later?
Yes. Every current Delmhorst meter accepts every Delmhorst electrode. The 21-E reads inside wall cavities and the 26-ES drives into timber flooring with insulated pins.
Is scan mode a moisture content reading?
No. Scan mode gives a 0 to 300 relative reference, not a percentage. Use it to find where the moisture is, then pin the area for a figure you can defend.
Who supports the meter in Australia?
We do. The Moisture Meter Company (Aberford Holdings Pty Ltd) is the exclusive Australian distributor for Delmhorst non-agricultural moisture meters, and handles service, calibration questions and warranty claims here rather than sending them overseas.
Support and warranty
One year warranty on manufacturing defects (owner's manual). This does not exclude, restrict or modify your rights under the Australian Consumer Law. Our goods come with guarantees that cannot be excluded under the ACL. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage.
What we see in the field
“It reads high in one spot, but the wall looks dry.” That's when we ask what's behind that section — stud, pipe, foil insulation or something else. Use the pinless mode to map it out, then check with pins where appropriate. The two methods answer slightly different questions.
Documents
Not sure which meter or electrode suits your work? Tell us what you are testing — timber floors, wall cavities, concrete slabs, cladding — and we will recommend what you need. See the full range in Delmhorst Moisture Meters.
