Breath odor checker that displays breath odor levels from 0 to 4. - Model Name: Breath Odor Checker - Function: Breath odor level display - Measurement Range: Approximately 3cm - Level Display: 0-4 levels - Color: White Available for immediate purchase. We also accept requests for set discounts with other products and price reductions. Please feel free to contact us if you have any other questions. All products are carefully stored in a clean environment, free of pets and smokers, so please feel free to consider them. We always inspect the items before shipping and carefully check their condition. We pack the items with the utmost care to ensure they arrive safely. #BreathOdorChecker #BatteryPowered #Compact