Fetal Heart Rate Monitor

Marsoni

M251S

$120.00

Get it in 3 business days with 1 day shipping. Friday, May 29

Fetal Heart Rate MonitorBattery: Rechargeable lithium battery (3. 7V) Continuous use for 2 hours, more than 300 recharges Battery life: discharge Charging power supply: MICRO USB (DC5V; 1 60MA) Type of protection against electric shock: Class II equipment, internal power supply equipment Degree of protection against electric shock: BF type product IPX4 (ultrasound probe area), IPX1 (anti liquid penetration degree: The rest of the shell) has flammable gas Not suitable for

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Fast: 2-3 business days
Express: 1-2 business days

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
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Product was as described. Works well. I use it for measuring the amount of coffee for my drip coffee maker. I have not done any testing with respect to actual accuracy so cannot comment. But it seems close to the other scale that I have that only measures to the nearest gram. Construction seems good. Nice looking unit.

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Reviewed in the United States on May 12, 2026

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Mark Campbell

Grantham, US

★★★★★ 4

Nice scale

Color: Black

Works as expected, nice size. Makes a big difference when adjusting espresso extraction. I haven't used the timer. One improvement for my use would be to move the power switch from the back to the front, on the side or on the control panel.

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Reviewed in the United States on May 5, 2026

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Jerry McCamman

Chelsea, US

★★★★★ 5

accurate scale

Color: Black

great product

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Reviewed in the United States on June 1, 2026

Verified Purchase

Peter Merritt

Waukegan, US

★★★★★ 5

Best Mid Priced Scale on the Market!

Color: Black, Color: Black

Hand down the best prices scale for the price. Excellent ability to precisely dial in pour overs. I’ve been waiting a long time for a scale like this to hit this price point.

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Reviewed in the United States on May 16, 2026