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Loudhailer Low Voltage Buzzer BB LED Annunciator for 2 - 4S RC Helicopter Quadcopter Car Battery

4.79 28 Reviews
$1.82

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Ship between: Jul 27 - Jul 30
China
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RED

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Discount: $0.2400000000000002

Customer Reviews

Loh
Jun 26,2016 13:59:21
Pros:
Even thought I gave 5 star rating, the product description states that it takes 2-4s batteries however, the alarm can take only 2-3s batteries and not 4s batteries. The description should be changed. I ordered the product based on the description but failed to see that the photo is different. Usually items are ordered based on the description and not the photos. I will now have to try and sell these off to others.
Cons:
The buzzer is loud enough
Вадим
Dec 20,2016 20:36:48
Pros:
Устройство очень легкое. Специально взвесил, 4 грамма. Размерами тоже порадовало. Миниатюрное. Подойдет тем, у кого ограничение по весу и размеру. К тому же пищалка очень громкая.
Cons:
Нет
Tuomas
Mar 24,2016 15:22:55
Pros:
Really loud alarm. Sounds like a smoke detector. Giving enough time to land safely, and if the helicopter disappears from the field. You can find the basis of its sound. Now I'll allways find my Wltoys v912.
Cons:
This would be lighter without LED lights
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Main Function:
1. When testing voltage > 3.6V, 2S Li-Polymer battery 2 green LED keeping light
2. When testing voltage > 3.6V, 3S Li-Polymer battery 3 green LED keeping light
3. When testing voltage > 3.6V, 4S Li-Polymer battery 4 green LED keeping light
4. When voltage < 3.3V, it will buzzer with red LED light

Features:
Can test 2 - 4S Li-Polymer battery.
Small and portable, low voltage alarm, with a very loud buzzer - BB.

Specification

Specifications

Type: Servo,Batteries
Feature: Tools/accessories of radio control series toy

Dimension and Weight

Product weight: 0.004 kg
Package weight: 0.024 kg
Product size (L x W x H): 4.0 x 2.0 x 1.0 cm / 1.6 x 0.8 x 0.4 inches
Package size (L x W x H): 2 x 5 x 2 cm

Package Contents

Package Contents: 1 x Loudhailer Low Voltage Buzzer

  • All (28)
  • Photos (19)
  • Videos (8)
4.79 *****
Loh
Jun 26,2016 13:59:21
Pros:
Even thought I gave 5 star rating, the product description states that it takes 2-4s batteries however, the alarm can take only 2-3s batteries and not 4s batteries. The description should be changed. I ordered the product based on the description but failed to see that the photo is different. Usually items are ordered based on the description and not the photos. I will now have to try and sell these off to others.
Cons:
The buzzer is loud enough
Вадим
Dec 20,2016 20:36:48
Pros:
Устройство очень легкое. Специально взвесил, 4 грамма. Размерами тоже порадовало. Миниатюрное. Подойдет тем, у кого ограничение по весу и размеру. К тому же пищалка очень громкая.
Cons:
Нет
Tuomas
Mar 24,2016 15:22:55
Pros:
Really loud alarm. Sounds like a smoke detector. Giving enough time to land safely, and if the helicopter disappears from the field. You can find the basis of its sound. Now I'll allways find my Wltoys v912.
Cons:
This would be lighter without LED lights
Chabroux David
Nov 01,2016 00:07:38
Pros:
excellente fail safe pour les batteries lipo. retentit une alarme sonore si la tension est trop faible. très petite taille est excellent pour les quads. n'a pas une lecture numérique de la tension mais fonctionne même avec des lumières LED. vert allumé puis rouge progressive led jusqu'à ce que les sons d'alarme
Cons:
pas de probleme
Jimmy
Oct 31,2016 04:15:23
Pros:
Works great as an alarm for low voltage on my rc boats so I can pull them back out of the water before battery runs critical and they get stranded
Cons:
None
Furkan
Sep 17,2016 19:44:28
Pros:
useful to find quadcopter when lost, and to keep battery in healthy voltage
Cons:
no cons for this price
Louie gagnon
Aug 28,2016 01:48:53
Pros:
This is a must have item quality product you need more than one bench, tool box and an extra for that friend that keeps using yours
Cons:
Nothing bad to say
szym
Dec 03,2016 01:49:21
Pros:
Low voltage buzzer - very useful and easy to use and install in the RC toy (e.g. a drone)
Cons:
None.
Andrew
Jun 18,2016 14:23:11
Pros:
Low voltage indicator and alarm, plugs straight into the battery connector.
Cons:
None
Josh
Mar 10,2016 10:19:24
Pros:
works perfectly. low cost.light weight
Cons:
single tone, rate.
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Loudhailer Low Voltage Buzzer BB LED Annunciator for 2 - 4S RC Helicopter Quadcopter Car Battery

$1.82

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