Baby Alarm E-201 with External Sensor for Infants - Brand: BabySmile - Model: E-201 - Type: Baby Alarm - Accessories: Main unit, sensor - Function: External sensor for infants Purchased around July 2025 and used a few times, but I received another one around the same time and used that instead, so this one has hardly been used. The instruction manual is included, but the outer box is not. It's easy to use, just place it under a baby mattress and turn it on.