User's Guide
Pinless Moisture/Humidity Meter
with IR Thermometer + Bluetooth
Model MO297
Introduction
Congratulations on your purchase of the Extech MO297 with MeterLink bluetooth capabilities
for use with Flir infrared cameras. This Pinless Moisture Meter incorporates a Patented Builtin IR Thermometer and 20 Point Memory. Monitor moisture in wood and other building
materials with no surface damage with the Pinless Moisture sensor (Pin-type Moisture Probe
included). Measure Humidity and Air Temperature with built-in probe plus non-contact
InfraRed Temperature with patented IR design. Advanced functions provide Grains per
Pound, Dew Point and Vapor Pressure calculations. This meter is shipped fully tested and
calibrated and, with proper use, will provide years of reliable service.
Meter Description
1. IR temperature sensor
2. Laser pointer
3. Humidity sensor
4. Temperature sensor
5. LCD display
6. Relative Humidity button
7. Mode/Zero Button
8. IR thermometer button
9. Alarm set button
10. Alarm adjust down / SEND button
11. ON/OFF power button
12. Remote pin probe input jack (bottom)
13. Battery compartment (rear)
14. Alarm adjust up / Bluetooth button
15. Moisture/Relative button
16. Protective cap
LCD Display
1. MIN MAX – Minimum and maximum value
2. HIGH LOW – Alarm limits
3. INT EXT – Internal/External probe
4. mBar – Vapor pressure
5. kPa – Vapor pressure
6. GPP – Grains per Pound
7. g/kg – Grains per kilogram
8. MOIST – Moisture mode
9. RH% - Relative Humidity mode
10. COND – Condensation mode
11. APO – Auto power off
12. DEW – Dew Point temperature
13. C/F – Temperature units
14.
- Low battery
15. MEM - Memory location indicator
16.
- Laser pointer On
- Bluetooth On
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Safety
• Use extreme caution when the laser pointer beam is on
• Do not point the beam toward anyone's eye or allow the
beam to strike the eye from a reflective surface
• Do not use the laser near explosive gases or in other
potentially explosive areas
Features
• Quickly indicates the moisture content of materials with Pinless technology without
damaging the surface;
• Optional remote Pin-type probe (MO290-P) allows for moisture readings at different
penetration levels (3ft/0.9m cable length);
• Easy to read, large dual display with backlit feature;
• Simultaneously displays % moisture of wood or material being tested and Air
Temperature, IR Temperature, or Humidity
• Designed with patented IR design to measure non-contact surface temperature; 8:1
distance to spot ratio with 0.95 fixed emissivity
• Built-in Humidity/Temperature probe measures Relative Humidity,
• Air Temperature plus Grains Per Pound (GPP) and Dew Point (DP)
• Ambient and Surface Vapor Pressure
• Automatic calculation of differential Temperature (IR - DP)
• Min/Max and Data Hold
• 20 point internal memory
• Auto power off and low battery indication
Battery Replacement
1. Turn off the meter.
2. Remove one Philips head screw and lift off the rear battery cover.
3. Replace the 9V battery.
4. Secure the rear battery cover.
You, as the end user, are legally bound (EU Battery ordinance) to return all
used batteries, disposal in the household garbage is prohibited! You can
hand over your used batteries / accumulators at collection points in your
community or wherever batteries / accumulators are sold!
Disposal: Follow the valid legal stipulations in respect of the disposal of the
device at the end of its lifecycle
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MO297 V3.2 07/10