Certificate of Calibration
Specifies that the product has been tested and found to be within its stated tolerance for accuracy.
These products can be adjusted to the standard they are tested against.
Sper Scientific warrants this product against defects in materials and workmanship for a the stated period from the date of purchase, and agrees to repair or replace any defective unit without charge. If your model has since been discontinued, an equivalent Sper Scientific product will be substituted if available. This warranty does not cover probes, batteries, or damage resulting from accident, misuse, or abuse.
Opening the meter to expose its electronics will break the waterproof seal and void the warranty.
To obtain warranty service, ship the unit and description of problem, postage prepaid to: Sper Scientific - Warranty Dept.,
8281 E. Evans Rd. Suite #103, Scottsdale, AZ 85260