Forerunner
®
301 Owner’s Manual 53
APPENDIX > SPECIFICATIONS
Heart Rate Monitor
Case: ABS plastic, water resistant,
Biocompatibility-compliant
Size: 11.65” x 1.34” x 0.43”
(296 mm x 34 mm x 11 mm)
Elastic Strap Length:
12.6”–25.2” (32–64 cm)
Weight: 1.55 oz (44 g)
Temperature Range:
-4°F to 140°F (-20 °C to 60°C)
(operating)
Battery: CR2032 (3 V @ 180 mAh)
Battery Life: 18 months/1 hour per day
ECG Sensitivity: 550 μV–5 mV p-p
ECG Detection: R-wave
Heart Rate Range: 30–240 bpm
Accuracy: +/- 1 bpm
3
Transmission Range: 90–110 cm
Transmission Frequency:
127 kHz +/- 2 kHz
3
Accuracy may be degraded by poor sensor contact, electrical
interference, and receiver distance from transmitter.
Specifications subject to change without notice.
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