Interested in reviews of Tesla GSM Amplifier ST-900 A? It got 3.6 out of 5 stars from our customers. Find specific customer reviews of Tesla GSM Amplifier ST-900 A below. We will appreciate if you also share your experiences with Tesla GSM Amplifier ST-900 A after purchasing.
Rated 21/11/2025, variant Tesla GSM Amplifier ST-900 A
Verified purchase
Totally unnecessary: Does not work with 4G and 5G
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Tomáš, Velká Bíteš
Rated 09/10/2025, variant Tesla GSM Amplifier ST-900 A
Verified purchase
Easy to install and use the amplifier, works well in relation to the price. it is easy to fall into an administrative trap with the legalization of this device, where the telecommunications office threatens high fines for illegal use. The problem is that you have to get permission from all operators to use it, which no one will ever give you. The only right way is to ask the operator to improve the coverage in the area where you have problems with the signal, which is a long run with an uncertain end. I definitely do not recommend buying and using this device!
where there's something to amplify, it amplifies
available solution
beware of legal use of this amplifier. For legal use, the consent of all operators and notification to the telecommunications office is required.
This is always written at the end in small letters
for unauthorised use, high fines are possible
Study the telecommunications authority's decree
I will return the amplifier, it cannot be used legally
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Grian s.r.o., Niměřice
Rated 28/08/2025, variant Tesla GSM Amplifier ST-900 A
Verified purchase
On the roof, 4 dashes 5g. Only EDGE in the room. The antenna was installed on the roof, the equipment placed in the room. Zero effect in the room.
The signal level has not improved at all.
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Martin, Praha 3
Rated 12/08/2025, variant Tesla GSM Amplifier ST-900 A
Verified purchase
Relatively easy to install.
It is not possible to disassemble the coaxial termination, i.e. if you need to run a cable from the roof through a pipe (grommet) you may have a problem.
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Jiří, Frýdlant
Rated 06/05/2025, variant Tesla GSM Amplifier ST-900 A
Verified purchase
signal strength unchanged after installation
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Václav, Postoloprty
Rated 09/12/2024, variant Tesla GSM Amplifier ST-900 A
Verified purchase - review from a price comparison website
The signal is ok
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Pavel, Uherský Ostroh
Rated 26/11/2024, variant Tesla GSM Amplifier ST-900 A
Verified purchase
I couldn't improve the signal in the basement.
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Anonymous customer
Rated 16/05/2023, variant Tesla GSM Amplifier ST-900 A
Verified purchase
It didn't send a signal
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Lenka, Praha 1 - Staré Město
Rated 06/02/2023, variant Tesla GSM Amplifier ST-900 A
Verified purchase
it's working as it should. Even with minimal outdoor signal, we can finally get through at home.
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Václav, Bílsko
Rated 23/12/2021, variant Tesla GSM Amplifier ST-900 A
Verified purchase
It worked
Cancellation of gsm signal to operators (subsequent proceedings with the Czech Telecommunications Authority) so I will never switch on again
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