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HM540 Wood Moisture Meter – Instant, Handheld, Portable – Non-Destructive

Non-Destructive Wood Moisture Meter — 2 to 150% Range, 400+ Species, No Pin Marks

The HM540 reads moisture content through surface contact alone, using two metal sensors and high-frequency capacitance to measure inside the wood without leaving a single pin hole. Built for sawmills, kiln operators, and importers who need a true reading on green, dense, or finished timber that contractor-grade meters cannot reach.

  • Widest range in its class: measures 2 to 150% moisture content, reading green and wet timber far above where pinless competitors stop.
  • 400+ species coverage: specific gravity setting from 0.10 to 1.25 covers dense tropical hardwoods, not just common construction species.
  • Non-marking measurement: two metal emitter and detector sensors read through the surface, leaving finished and veneer-grade wood unblemished.
  • Authorized and documented: JHWTC-certified for conifer timber, with 999-point memory and USB data logging for quality-control records.

$995.00

Description

The Professional Standard for Non-Destructive Wood Moisture Measurement

Most pinless meters stop reading where the real moisture problems begin. The HM540 measures from 2 to 150% across more than 400 species, giving sawmills, kiln operators, and hardwood importers an accurate moisture reading on green, wet, and dense timber, all without driving a single pin into the wood.

Built to Read What Other Meters Cannot

  • Green and wet timber: a 2 to 150% range reads freshly sawn and kiln-charge timber well beyond the 30-something percent ceiling typical of contractor-grade pinless meters.
  • Dense and tropical hardwoods: a specific gravity setting from 0.10 to 1.25 covers more than 400 species, including dense exotics that fall outside narrower correction bands.
  • Finished and veneer-grade surfaces: high-frequency capacitance through two metal sensors measures inside the wood without pin marks, protecting product you intend to sell.
  • Quality-control records: 999-point internal memory plus USB logging through the optional HDL-02 software turns spot checks into a documented moisture history.

Built for the Mill and the Kiln

The HM540 reads in roughly a second through simple surface contact, compensates for temperature automatically from 10 to 40°C (and manually from −10 to 70°C), and adjusts for material thickness from 10 to 40 mm. It carries JHWTC authorization as a moisture meter for conifer timber, a level of independent recognition that contractor-grade meters do not hold. Every HM540 is backed by Kett’s one-year Total Care coverage: parts, labor, and specification compliance, with maintenance agreements available.

Need to measure where you cannot reach a flat surface? The MT730 Wood Moisture Meter uses a penetrating needle probe to read rough, uneven, and stacked lumber the capacitance method cannot sit flat against.

Working with green timber above 40%, or need printed records? The MT900 Wood Moisture Meter extends the pin-type range to 80% and stores 250 date-stamped readings with optional printer output.

Additional information

Weight 3 lbs
Dimensions 8 × 7 × 4 in
Measurement Principle

High-frequency capacitance (20 MHz)

Measurement Range

2–150% dry basis (specific gravity and species dependent)

Accuracy

Standard error 0.5% or less on standard samples (reference method dependent)

Resolution

0.1%

Reproducibility

0.1%

Precision

0.1%

Applications

Solid wood and lumber

Measurable Components

Moisture

Form Factor

Handheld

Calibrations

400+ species via specific gravity setting

Sensor Type

Two metal surface sensors, non-destructive contact

Display

128 × 64 dot matrix LCD with backlight

Compensation Functions

Specific gravity 0.10–1.25 (up to 3 values); thickness 10–40 mm; automatic temperature 10–40°C, manual −10 to 70°C

Features

Alarm, limit detector, power saver

Data Memory Capacity

999 points

Standards Compliance

JHWTC authorized for conifer timber (authorization no. 1-21-001); reference method: oven-dry (JIS Z 2101:2009)

Operating Temperature

0–40°C

Operating Humidity

Non-condensing

Communications

USB

Power

One 9V alkaline battery (006P)

Power Consumption

350 mW

Dimensions

72 mm (W) × 146 mm (D) × 118 mm (H)

Weight

0.39 kg (0.86 lbs)

Standard Accessories

Carry case

Options

HDL02 data logger software (USB)

Warranty

One Year Total Care Warranty covering parts, labor, and specification compliance. Maintenance Agreements available.

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