GARMIN HRM 200, M-XL

Module dimensions (LxWxD) 2.7" W x 1.2" H x 0.4"D (68.0 x 31.6 x 11.0 mm) Size range XS-S: Strap length: 22"–28" (56–72 cm) Fits chest size 23.5–33.5” (60–85 cm) M-XL: Strap length: 28"–42" (72–106 cm) Fits chest size 31.5–47”(80–119 cm) Weight With M-XL Strap: 2.2 oz (63 g) Module Only: 0.7 oz (20 g) Button Status LED yes (bi-color) Water rating 3 ATM Battery Type CR 2032 Battery life Up to 12 months (using 1 hour per day) Battery door type Quarter-turn (tool built into strap slider) Detachable module HRM Connectivity Pairs with Garmin Connect™ App Transmits data over ANT Transmits data over BLE Supports secure BLE connections (with compatible Garmin device) Number of concurrent connections supported ANT: No limit; Bluetooth Low Energy: 3 Fitness Features Heart rate and HRV (Heart Rate Variability)