Product Description

Extech MO257 Pinless Moisture Meter

Take non-invasive, pinless moisture measurements on wood and building materials with Extech’s MO257 Moisture Meter. Easy-to-operate with automatic calibration, this meter has a ball moisture sensor that provides smooth gliding on hard or delicate surfaces. A large backlit triple LCD displays moisture reading and Max and Min readings; user can also adjust two alarm levels to display a visual alert (flashing “RISK” or “WET” indicators) plus a beeper alert. The MO257 is a must-have tool for analyzing the after-effects of water leakage behind walls and in ceilings and also measuring moisture content on a non-flat surface.

Features Extech MO257 Pinless Moisture Meter

Relative pinless moisture reading for non-invasive measurement from 0.0 to 100.0 with 0.1 resolution
Multifunction backlit triple LCD display
Pinless measurement depth from 0.78” (20mm) to 1.6” (40mm) below the surface
High frequency sensing technology
Automatic Data Hold
Two adjustable alarm levels with audible beeper and visual (flashing ”RISK” or ”WET”) indicators
Automatic calibration (in dry air) when meter is powered on
Low battery indication, Auto Power off
Complete with 3 AA batteries and pouch

Specifications Extech MO257 Pinless Moisture Meter

Function	Range	Accuracy
Moisture Range	0.0 to 100.0	Relative only
Measurement Depth	20 to 40mm (0.79 to 1.57”)

Display type	Backlit LCD
Display digits	Three (3) numeric displays; each displaying from 0.0 to 100.0
Display icons	HOLD, DRY, RISK, WET, MIN, MAX and low battery icon
Operating Temperature	4 to 43°C (40 to 110°F)
Operating Humidity	90%, 0-30°C (32-86°F), 75%, 30-40°C (86-104°F), 45%, 40-50°C (104-122°F)
Power Supply	Three (3) 1.5V ‘AAA’ batteries
Auto Power Off (APO)	After 30 minutes of inactivity
Dimensions	235 x 63 x 28mm (9.2 x 2.5 x 1.1”)
Weight )	218g (7.7oz