This UEI SSM1 Super-heat/Sub-cool Meter and UEI DTH 31 Psychrometer is a must-have for any technician who needs to measure temperature and humidity in HVAC systems. This device is compatible with the SSM1 Super-heat and features a psychrometer that measures both temperature and humidity.

With its open box, this device is in excellent condition and ready to provide accurate readings for your next project. Whether you're a professional technician or a DIY enthusiast, this device is perfect for measuring temperature and humidity in consumer electronics and other appliances.