Does it have masonry setting?

The MMH800 is designed for use in woodworking, water damage restoration, building construction and home renovation. Examples include: • Checking for moisture on or below the surface of carpets • Measuring the surface moisture and/or moisture content of wood, drywall or concrete before painting, wallpapering, sealing or treating.

What's the probe length? Are they insulated or replaceable?

As far as i can tell the probes are about 3/8 long. The are metal, and have a plastic cover to protect them and you when not in use. The cap can also be flipped over once taken off, to help check device itself, for calibration. They are replaceable. They actually come with an extra set of pins (probes). Hope this helps.

Will this work for firewood?

you are going to get a reading to the depth of the prongs about a third of an inch.

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General Tools Moisture Meter, Pin Type or Pinless, Temperature & Humidity (MMH800)

General Tools Moisture Meter, Pin Type or Pinless, Temperature & Humidity (MMH800)

Product ID: 52999164

Details

Brand
General Tools
Product dimensions
9.2W x 20.7H
Item weight
907 g
Battery description
9V
Mounting type
Freestanding

📏±0.1% measurement accuracy

🔋Auto power off for battery saving

🌡️Dual LCD for temp & humidity

TT$3393

Duties & taxes included

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Description

🌟 Stay ahead of moisture issues with pinpoint precision and all-in-one environmental sensing!

DUAL SENSOR VERSATILITY - Pin and pinless modes for precise moisture detection in any material
ENERGY EFFICIENT DESIGN - Auto power off extends battery life so you never miss a critical measurement
PRECISION YOU CAN TRUST - High accuracy with ±0.1% repeatability ensures reliable readings every time
USER FRIENDLY DATA HOLD - Freeze readings on screen for easy documentation and on-site analysis
COMPREHENSIVE ENVIRONMENTAL INSIGHT - Simultaneously monitors moisture, temperature, and humidity for smarter decisions

The General Tools MMH800 is a professional-grade moisture meter featuring both pin and pinless sensors, dual LCD displays for moisture, temperature, and humidity readings, and ±0.1% accuracy. Designed for woodworking, restoration, and construction pros, it offers data hold functionality and auto power off to optimize usability and battery life.

Specifications

ASIN	B00563TQFG
Batteries Required?	Yes
Batteries included?	Yes
Battery Cell Type	Alkaline
Battery description	9 volt battery
Best Sellers Rank	134,239 in Garden ( See Top 100 in Garden ) 3,119 in Scanners & Testers 10,219 in Lawn & Garden Watering Equipment
Customer Reviews	4.0 4.0 out of 5 stars (641)
Date First Available	31 Aug. 2012
Delivery information	We cannot deliver certain products outside mainland UK ( Details ). We will only be able to confirm if this product can be delivered to your chosen address when you enter your delivery address at checkout.
Guaranteed software updates until	unknown
Included Components	General Tools MMH800 4-In-1 Combo Moisture Meter, Batteries
Item Package Quantity	1
Item Weight	885 g
Item model number	MMH800
Manufacturer	General Tools
Material	HAWA
Measurement Accuracy	+/-0.1%
Number of Pieces	5
Part Number	MMH800
Pattern	Digital Moisture Meter
Plug profile	Freestanding
Power Source	Corded-electric
Product Dimensions	9.22 x 20.65 x 30.48 cm; 884.51 g
Size	Pin Type or Pinless
Style	Temperature and Humidity
Usage	Professional
Voltage	9 Volts

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