Heart Rate Monitor Sports Watch with Elastic Chest Belt (CR2032) 

Features:

calories and fat burnt calculation
Wireless receiving heartbeat signal transmitted from heartbeat brooch,cheat frequency is AM5.3KHz
Time display:hour,minute,second
Give alarm when heart rate exceeds the upper and lower limit values (60-220)
12/24 hour displaying format,timing (maximum time-keeping is 23 houes,59 minutes,59 second,99)
Alarm clock function & EL backlight & Keystroke tone

Specifications:

Movement size:Φ33.2mm
Thickness:9.35±0.15mm
Work temperature:-10℃ ~ +60℃
Work voltage:3V
Veracity:±90 seconds/month
Battery type:CR2032
Static maximum drive current:≤3.5μA （T=25℃）
Static average drive current:≤2.5μA （T=25℃）
Heartbeat monitoring current:≤30μA （T=25℃）
EL lighting current:≤10.0mA
Alarm ring current:≤2.5mA
Chest Band: 
Quiescent current:≤1.0μA （T=25℃）
Emission transient current:≤4.5mA （T=25℃）
Emission average current:≤0.4mA （T=25℃）
Emission distance:≥65cm
English user manual included