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Machine de gravure laser ATOMSTACK 20W S20Pro Graveur laser 20W Effet Machine de découpe de gravure laser de haute précision avec kit d'assistance d'air Coupeur laser haute énergie pour bois de 25 mm 0,01 mm Carte mère 32 bits Spot compressé à focale fixe ultrafin
779,28€ 1.864,32€

Q: Can it etch copper off a PCB?

demandé par Echobot sur 2022-06-03 08:20:05

The seller yes.it can

2022-06-24 07:37:10 Utile (0)
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Nouveau module laser de gravure et de découpe ATOMSTACK M50 Double Ultra-Fine Compressed Spot Laser Module avec mise au point fixe améliorée pour graveurs laser, imprimantes 3D et fraiseuses CNC.
326,25€ 652,51€

Q: how is this 50W when then tech specs show max 38W?

demandé par ILMGuy99 sur 2021-08-25 09:40:31

Echobot Power = Voltage x Current. So this unit is 12V x 3.2A = 38.4 Watts. This is NOT a 50 Watt unit. The claimed Optical Output power is 10 Watts. The only way to be sure that this 10 Watt figure is accurate, is to measure it with an Optical Power Meter.

2021-09-24 09:19:03 Utile (5)
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réponses (4)
BAOFENG X3-Plus 2800mah 8W Talkie-Walkie Radio Tri-bande 20 KM Étanche UHF/VHF Transmetteur Radio 220MHz Noir
60,28€ 82,02€

Q: This is listed as a 18W radio but in the video, the test shows it's only 5 Watts output. Why is there a difference?

demandé par Echobot sur 2021-03-27 01:36:39

Hudson The advertised 18w is actually the wattage of the battery, give or take a bit. 7x2.8= 19.6w.

2021-04-30 06:39:00 Utile (2)
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réponses (2)
Echobot 25/02/2021
This is an excellent meter and great value for money. I liked it so much that I bought a second one.
ANENG AN113D Multimètre numérique intelligent de mesure True-RMS avec 6000 points de comptage, testeur de continuité de diode de résistance de test de température de courant alternatif/courant continu amélioré depuis AN8002
20,50€ 27,96€
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Echobot 25/02/2021
This is an excellent meter and great value for money
ANENG AN113D Multimètre numérique intelligent de mesure True-RMS avec 6000 points de comptage, testeur de continuité de diode de résistance de test de température de courant alternatif/courant continu amélioré depuis AN8002
20,50€ 27,96€
0
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Echobot 25/02/2021
The stones are good quality and it is clear that they did prepare the surface of the two knives I tried sharpening, however I was not able to get them sharp. I'm sure that the problem is not the stones, but that I was not using the correct technique and that some more research and practice is required.
Pierre à aiguiser de coupe Whetstone Premium Grit 400/1000+3000/8000 / 400/1000 Pierre à aiguiser Cutter Sharpener
17,14€ 27,03€
0
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Echobot 14/10/2020
Very good value for the money. Works as advertised and is accurate. Bluetooth connection to the Android app worked perfectly.
UD18 USB3.0/DC/Type-C 18 in 1 Testeur USB APP DC Digital Voltmeter Ammeter HD Color Screen 6-Bit High Precision Display UD18 bluetooth Digital Meter
31,31€ 34,48€
0
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Echobot 02/10/2020
The load works as advertised. It's actually good value for the money. The Android App is good but I can't seem to save the data that is captured in the graphs, so unless I'm doing something wrong, that could be improved upon. I haven't tried the PC software yet; hopefully you can save the data there. Other than that, the unit works well. You can adjust the load to different settings when it is running, so when testing a switch mode supply, you can increase the load until the supply stops regulating and easily work out what its capacity is. I had no trouble setting up the Bluetooth app on the android and using the unit without having the read the manual, so it's pretty intuitive in my opinion. There's no way I could build something as versatile for the price, so I think it's great value.
180W DL24P Testeur USB DC 2.4 pouces Charge électronique APP 18650 Batterie Moniteur de capacité Décharge Charge Compteur d'alimentation Vérificateur d'alimentation avec écran couleur Système à 4 fils
64,31€ 63,42€
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Echobot 12/07/2018
This device worked as advertised. The display updates quickly in real time and the resolution is excellent. The sensitivity is OK but not fantastic. I can pick up my access point from about 5m away, but it would be a great improvement if you could attach an external antenna to improve range. For the price, it's great value in my opinion. I can quickly check to see whether my 2.4Ghz devices are interfering with each other or operating on different parts of the spectrum.
Lantian Mini Spectrographe Haute Sensibilité à 2.4ghz avec Écran OLED Open Source pour Drone RC
18,29€ 19,01€
0
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