Edan SonoTrax Pro Doppler

SonoTrax Pro Interchangeable waterproof probes, LCD display & backlight, three working modes, built-in audio recorder, 9V alkaline battery Features and Benefits A high-performance Fetal Doppler with heart rate Compact design Built-in audio recorder Large LCD display & backlight Accurate FHR detection with clear sound Automatic/ Average / Manual fetal heart rate counting Highly sensitive interchangeable probes Includes Backlit LCD Build-in Recorder 3MHz Waterproof Probe Carry Case Specification Display: 45 mm x 25 mm backlight LCD display. Power: Requires two AA batteries. Heart Rate Range: 50 - 210 bpm. Resolution: 1 bpm. Recording Time: 240 s. Audio Output Power: 0.5 w. Auto Power-Off: 1 minute with no signal or operation. Size: 32 mm (depth) x 85 mm (width) x 138 mm (height). Weight: 0.66 lb (300 g) including the battery. Warranty 2 Year warranty on the Sonotrax Pro Fetal Doppler main unit 1 Year warranty on the accessories or disposables