Description
Product Overview
The General Tools MM8 LCD Moisture Meter is a compact, handheld device designed for precise moisture detection without the need for invasive pins. Housed in a durable white plastic shell with a sleek black LCD screen, the meter measures moisture levels in wood, drywall, masonry, and other construction materials. Its pinless sensing technology allows readings up to 3/4″ (19mm) deep, delivering relative moisture values ranging from 0‑53% for softwood and 0‑35% for hardwood. The device operates on a single 9V alkaline battery (included) and functions reliably across a temperature span of 32°F to 104°F and humidity range of 5%‑95%.
Usage
Whether you are a DIY homeowner tackling a renovation project or a professional contractor conducting a thorough building inspection, the MM8 provides quick, accurate moisture readings in a variety of environments. Use it to locate hidden water leaks behind walls, assess the dryness of newly installed drywall before painting, or evaluate the moisture content of lumber before finishing. The bright backlit LCD digits are easily readable in dimly lit basements, attics, or crawl spaces, and the audible alarm alerts you when moisture exceeds preset thresholds, helping you prevent mold growth and structural damage.
Why Choose Us
General Tools has a long-standing reputation for engineering reliable, user‑friendly measurement instruments. The MM8 combines rugged construction with advanced pinless technology, eliminating the risk of surface damage while delivering consistent results. Each unit undergoes strict quality control testing to ensure measurement accuracy within ±0.01%. The ergonomic handle design reduces hand fatigue during extended use, and the included battery guarantees immediate operation out of the box. Backed by General Tools’ customer support, you receive responsive assistance and a clear warranty for peace of mind.
Key Features
- Pinless, non‑invasive sensing reaches up to 3/4″ deep for accurate moisture detection without surface damage.
- Large 2″ backlit LCD display with 3‑color LED bar graph makes readings clear in any lighting condition.
- Audible alarm and out‑of‑range indicator warn you instantly when moisture exceeds safe levels.
- Ergonomic handle and lightweight design (5.4 oz) ensure comfortable, prolonged use on job sites.
- Comes with a 9V alkaline battery and full after‑sales support, including warranty and technical assistance.
FAQ
How does pinless moisture detection work?
The sensor emits a low‑frequency electromagnetic field that penetrates the material surface. Changes in the field caused by moisture alter the reading, allowing the meter to calculate relative moisture content without physically piercing the material.
Can the MM8 be used on both softwood and hardwood?
Yes. The meter provides separate moisture ranges: 0‑53% for softwood and 0‑35% for hardwood, giving accurate readings for a wide variety of wood types.
What is the battery life and does the meter indicate low battery?
With typical use, the included 9V alkaline battery lasts several months. The device features a low‑battery indicator that flashes the LED bar graph, prompting you to replace the battery before performance is affected.
Is the meter suitable for detecting leaks behind finished walls?
Absolutely. The pinless sensor can detect moisture up to 19 mm beneath the surface, making it ideal for locating hidden water intrusion behind drywall, plaster, or tile without causing damage.
What warranty does General Tools provide?
General Tools offers a one‑year limited warranty covering defects in materials and workmanship. Customer service is available for troubleshooting, replacement parts, and warranty claims.
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