Product Details:
Properties House-Service Detector Tester 
Type Heart Rate Monitor 
Model Number HRM-2805 
heart rate range 40-240B 
Calorie tracking 0-9999 
storage 7days data storage 
product color black 
weight 2.4 oz (68g) 
connectivity bluetooth 
heart rate alarm yes 
vibrate yes 
guarantee 12 months 
product size 31(L) x 45.5(W) x 1.54(H)cm