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Details about  ULTRASONIC Lipo Battery Low Voltage BUZZER ALARM 2S/3S/4S w/Adjustable Voltage

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ULTRASONIC Lipo Battery Low Voltage BUZZER ALARM 2S/3S/4S w/Adjustable Voltage
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Item condition:
27 Mar, 2015 19:50:18 AEDST
US $10.98
Approximately AU $15.26(including postage)
FREE Standard Shipping | See details
Item location:
Rowlett, Texas, United States

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Last updated on  21 Jan, 2015 14:23:23 AEDST  View all revisions

Item specifics

New: A brand-new, unused, unopened, undamaged item. See the seller's listing for full details. See all condition definitions- opens in a new window or tab
Brand: Generic
For Vehicle Type: Airplane, Helicopter Theme: Not Applicable
Fuel Source: Electric Part: Batteries-Low Voltage Alarm
For Vehicle Brand: Any Brand
A Pro Hobbies - RC Hobby Parts and Accessories Store

ULTRASONIC Lipo Battery Low Voltage BUZZER ALARM 2S/3S/4S (Adjustable Voltage)

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The ULTRASONIC Low Voltage Alarm 2S/3S/4S can monitor your battery status while flying, and will update you via the onboard LEDs and/or the "ULTRA LOUD" dual buzzers when the voltage of the battery drops below normal flight levels (3.3v per cell by default). The low voltage can be set from 2.8~3.5V. The unit is universally compatible with most Lipo batteries such as Align/E-flite/E-Sky/FlightMax/Turnigy/Pulse battery.


The best investment for RC Hobbies. Your ESC may have a  built-in Low Voltage Cut-off but this is always good to have as extra insurance for your expensive models and Lipo batteries, just in case your built-in ESC LVC gone wrong.




  • Compatible with 2-4S Lipo/Li-ion/LiMn/Li-Fe.
  • Alarm voltage set value range: 2.8-3.5v.
  • When testing full power (>3.6v) 2s (7.2v) lipo battery, 2 green LED are on.
  • When testing full power (>3.6v) 3s (10.8v) lipo battery, 3 green LED are on
  • When testing full power (>3.6v) 4s (14.4v) lipo battery, 4 green LED are on.
  • When voltage falls below set voltage, it will buzzer repeatedly with red LED light.
  • Push key to change the voltage setting, default set voltage 3.3v.

We appreciate your business and are committed to provide quality products and services. If you have any problem with your purchase, please contact us for help before leaving unfavorable feedbacks. Below is our general return guidelines:


  • This product is guaranteed against any natural factory defects within 30 days of purchase.
  • Defective product(s) which include a manufacturer warranty will be handled directly by the manufacturer.
  • Please contact us for an RMA number before you attempt to return any product. Return without prior approval may be refused.
  • Defective item(s) may be returned for a replacement only. Items returned for other reasons will be subjected to a 25% restocking fees.
  • Due to the nature of RC Hobby, any warranty implied will not cover wears, improper use, mishandled, installation error, incorrect wiring, ect.
  • All products returned must be completed with all original/retail packaging including all accompanied accessories as delivered to you.
  • We accept payment via PayPal including eCheck. Payment must be cleared before order can be processed.
  • By law, 8.25% sales tax will be applied for orders shipping within the state of Texas.
  • Payment must be received within 7 days of purchase, otherwise your order will be cancelled.
  • We ships most orders within 1 business day, except during Holidays and store vacation.
  • Shipping address cannot be changed once payment is received. Please contact us for alternative option.
  • For special orders, some products may ship directly from our distributor at no extra cost to you.


International Customers - Please Note:


  • Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer’s responsibility.
  • Please check with your country’s customs office to determine what these additional costs will be prior to bidding/buying.
  • These charges are normally collected by the shipping carrier  upon delivery – do not confuse them for additional shipping charges.
  • We will not mark merchandise price below its value or as a ‘gift’ - USA laws and regulations prohibited such violation.
  • We reserved the rights to restrict shipping to selected countries.

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