Draper Mini Moisture Meter

The Draper mini moisture meter is a handy tool for detecting damp. Use it on wood, plaster or concrete to check whether moisture is present. Just press the probes to the surface you’re testing and the result will be shown on the LCD screen as a percentage. The meter also displays the ambient temperature in Celsius or Fahrenheit.
It’s battery operated, so you can use it anywhere. If you're working in dimly lit areas, there's a built-in light and a back-lit LCD screen for easy reading. Few things are more frustrating than reaching for a tool and discovering the battery is flat, so the meter also turns itself off after 15 seconds of inactivity to preserve that precious power.
Works on wood, plaster and concrete
Digital LCD display shows moisture content as a percentage
• Powered by four LR44 batteries (included)
• Low battery warning
• Extremely lightweight
• Dimensions: 80mm x 20mm x 40mm
• Can also measure ambient temperatures
• Moisture measurement range of 6–42% (wood) and 0.2–2.0% (plaster/concrete)
• Temperature measurement range of 0–40°C or 32–104°F