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Modulo diodo laser verde 515nm 35mW Generatore laser per strumento livellatore laser Indicazione posizione linea di marcatura
US$12.69 US$13.99

D: price just almost doubled?? last week it was still 5.4$... wth..?!

Domandata da ideasinaction il 2021-06-08 18:56:39

BG392305639 The price S.R.24.57 has not doubled, but I do not recommend buying it because it needs to buy a cooler as well as a lens

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Modulo wireless GT-38 Wireless MCU SI4438/4463 Ricezione 1200 Metri Interfaccia UART Comunicazione wireless
US$11.54 US$11.99

D: How does this differ from the HC-12? Which is the better of the two?

Domandata da 576924 il 2021-06-16 10:29:27

BG392305639 The HC-12 is a half-duplex wireless serial communication module with 100 channels in the 433.4-473.0 MHz range that is capable of transmitting up to 1 km The GT-38 is a half-duplex wireless serial communication module with 256 channels in the : 433-458.5 MHz range that is capable of transmitting up to 1.2 km

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