Model 407777 Version 2.2 Jan 04
2
Warranty
EXTECH INSTRUMENTS CORPORATION warrants this instrument to be free of defects
in parts and workmanship for one year from date of shipment (a six month limited
warranty applies on sensors and cables). If it should become necessary to return the
instrument for service during or beyond the warranty period, contact the Customer
Service Department at (781) 890-7440 ext. 210 for authorization or visit our website at
www.extech.com (click on ‘Contact Extech’ and go to ‘Service Department’ to request an
RA number). A Return Authorization (RA) number must be issued before any product is
returned to Extech. The sender is responsible for shipping charges, freight, insurance
and proper packaging to prevent damage in transit. This warranty does not apply to
defects resulting from action of the user such as misuse, improper wiring, operation
outside of specification, improper maintenance or repair, or unauthorized modification.
Extech specifically disclaims any implied warranties or merchantability or fitness for a
specific purpose and will not be liable for any direct, indirect, incidental or consequential
damages. Extech's total liability is limited to repair or replacement of the product. The
warranty set forth above is inclusive and no other warranty, whether written or oral, is
expressed or implied.
Specifications
General Specifications
Circuit
Custom one-chip LSI microprocessor circuit
Display
Dual function 2000 count (0 to 1999) LCD display
Measurement Range
9% to 30% Moisture Content
Memory Table
9 memory groups for approx. 150 species of wood
Data Hold
Front panel push-button freezes displayed reading
Sample Rate
Approx. 0.8 seconds
Sensor Structure
Remote two-prong intrusive sensor
Memory Record / Recall
Records Maximum/Minimum readings for later recall
Auto Power off
Meter automatically shuts off after 10 minutes
Data Output
RS-232 PC serial interface for use with Model 407001 data
acquisition software and interface cable kit
Operating Temperature
32°F to 122°F (0°C to 50°C)
Operating Humidity
90% Relative Humidity (max.)
Power Supply
9V battery
Power Current
Approx. 5.8mA DC
Weight
0.73 lbs (330g) (including batteries & probe)
Size
Main instrument: 7.1 x 2.8 x1.3" (180 x 72 x 32 mm)
Probe: 0.9” (23mm) diameter x 6.54" (23mm) length
Accessories
Spare pins (10) and protective rubber holster
Range Specifications
Measurement
Range
Resolution
Accuracy
Moisture content
9 to 30%
0.1 %
± (4% + 5d)
Temperature compensation: 32°F to 122°F (0°C to 50°C)
