Ensure safety If the device shows a fault, do not attempt repairs. Contact us for assistance. Before taking measurements, remove the black rubber protective cover for accurate results. Regular maintenance is essential. Clean the probe attachments monthly to prevent measurement errors. For cleaning, rinse the sensor's outer surface with water. If needed, use a soft, damp cloth to wipe away any residue. Calibrate the device before each use. For long term applications, monthly calibration is recommended, adjusting frequency as needed., Manufacturer: TUdcgjSXF