Maintenance - Extech Instruments RH401 User Manual

Maintenance

Cleaning and storage
1. The meter should be cleaned with a damp cloth and mild detergent when necessary. Do not use
solvents or abrasives.
2. Store the meter in an area with moderate temperature and humidity (refer to the operating and
storage range in the specifications chart earlier in this manual).
Battery Replacement
When the battery power falls low, the
four (4) 1.5 'AAA' batteries by removing the rear battery compartment cover and accessing the
battery compartment. Observe polarity when placing the batteries in the compartment. Ensure that
the compartment cover is securely fastened when finished.
Repair Services
Extech offers repair and calibration services for most of the products we sell. Call the Customer
Service Department for information on repair services available for this product.
Repair@extech.com or call 1-603-324-7800 press 4.
nd Quality Products Online at:
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