1. Memory Capacity: 28,671 records Energy usage during stand-by: 0.06mA
2. Battery Life: over one year with a single battery average 200 readings per day
3. Reading distance: 5cm to 10cm
4. Frequency: EM125KHZ standard
5. PC Connections: USB connection Operating
6. Temperature: -20C to 70
7. Operating Humidity: 0% to 95% Size: 120 x 35 x 26mm
8. Weight: 200g Battery: 3.6V lithium battery CR123A
Guard tour patrol system