Factory Calibrated: The COM-80 meter is calibrated with a 1413 µS solution—can be recalibrated with digital calibration using the push buttons
Lamp detection for safe operation (open & short circuit protection)
PPM (700) and temperature• Premium probe technologies and materials ensure high accuracy and durability with minimal maintenance• Titanium alloy sensor designed for high accuracy EC measurement• Easy-to-use design and fast calibration adjustment
Proudly designed and assembled in Petaluma
Works great around my chickens and dogs without any worry
20x20x1 Pleated MERV 10 Air Filters 12 Pack water-filtration Factory Calibrated: The COM-80 meterNordic Pure MERV 10 Pleated AC Furnace Air Filters provide exceptional filtration for both home and commercial environments. Each time air passes through a Nordic Pure pleated furnace air filter, lint, dust, pollen, bacteria, pet dander, dust mites, mold spores, smoke particles, virus carriers, allergens and other contaminants are removed. MERV 10 furnace filters are comparable to HVAC filters with the rating of MPR 900 1000. While different companies