Works with any transmitter on any frequency, hold against your transmitter to verify the operation, bleeps and flashes if your good to go !

System includes small pocket sized UHF 433 and 434 receiver with fold out antenna and transmitter of your choice

AltimeterOne is a rechargeable digital altimeter with LCD display, the only way to know “how high did it go”  

Eliminates the guess work by quickly showing you how much life is left in your batteries.