solentlife
A short video showing an Alarm that with care in use was very good ... but HK stopped selling quite a while ago ... 



Now I would like to add to my 2 still working ... if there are any other brands out there similar ... 

Yes I know I can upgrade to Telemetry ... but these work with any gear without need for change gear.
I'll fly anything if I can launch it ! Youtube : solentlifeuk
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solentlife
Finally decided to add the Piezo Buzzers ....

The two wires are just soldered to the board where the vibrator is connected ... needs fine tip iron !!

[Quanum%20battery%20alarm%20modification_zpsyuocmhut]

These are the beepers I bought ... making sure they are ACTIVE versions and as small as you can get ...

https://www.ebay.co.uk/itm/10-pcs-worlds-smallest-9650-Electromagnetic-type-Active-SMD-buzzer-9-6-9-6-5MM-/401211562046?var=&hash=item0

My beeper is under the board next to the vibrator simply glued to the case ..
I'll fly anything if I can launch it ! Youtube : solentlifeuk
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