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No hay artículos en el carroDescripción del producto
Fácil de usar
Diseño ergonómico de baja presión del émbolo evita lesiones por tensión repetitivas, peso ligero, fácil de controlar con la mano completa, reduciendo la fatiga de la mano. Gira fácilmente el botón del pistón para seleccionar el volumen de dispensación.
Rango de volumen
Rango de volumen de 100-1000ul, incremento: 5 μl. Pantalla de dígitos para permitir una configuración de volumen más precisa y una identificación de volumen más fácil.
Duradero
Material de alta tecnología que proporciona una excelente resistencia a altas temperaturas, corrosión y clima. Calibrado según las normas ISO 8655 para mayor precisión y precisión. Baja fuerza de operación. Acción suave de la bomba del pulgar y aspiración suave de varios líquidos. pipeta de un solo canal común.
Cambio de punta fácil y rápido
El eyector de punta hace un cambio de punta fácil y rápido. Fácil de calibrar y mantener con las herramientas suministradas
Estructura razonable
La exquisita tecnología hace que el montaje y el desmontaje sean flexibles.
Joseph Cooper
Comentado en los Estados Unidos el 11 de julio de 2024
I purchased both the 1-10ml and 100-1000ul pipettes. The 1-10ml has worked great although it needed calibrated. The 100-1000ul has never been accurate and won't calibrate. The calibration nut screws all the way out, so I can never calibrate it. To dispense 1000ul I have to set the pipette to 700 and measure accuracy ever time I use it. I've torn it apart, cleaned it, lubricated it with the same result. I tried contacting Four E's several times and never got a response. I will be looking for another vendor.
Marcos Ledezma
Comentado en los Estados Unidos el 8 de marzo de 2024
great item saved me money.!
Peter V.
Comentado en los Estados Unidos el 26 de diciembre de 2024
Inaccurate even after calibration
Neurasthenic
Comentado en los Estados Unidos el 17 de julio de 2022
[original review] Want to add the random factor to your work? If so, the Four @ "High-Accurate" variable pippetor is the pippetor for you. Each draw will vary by a factor of 3x or 4x from the next in the series. Life is too full of certainties, thrill in the excitement of never knowing what will come next![edit, eight months later] They just refunded my purchase price, so I increased the rating.
C
Comentado en los Estados Unidos el 7 de agosto de 2019
I give this one free star because the company is working so hard to guarantee customer satisfaction. They sent me a message trying to make sure I was satisfied. But the reality is there is nothing their message can fix about this device and if I knew someone had had the experience that I just had with it, I probably wouldn't have bought it. The best customer service in the world can't carry the weight of a product that functions this poorly.As anyone reading this probably knows, 1000uL of water weighs 1g. I was using tap water, which some people have found to weigh as much as 1.003g, which is fine. When I used this device at the 1000uL setting, I was getting over 1.100g. Which is an error of over 100uL. Which is supposed to be the normal operating range of the device.So just calibrate it, right? Sadly, no. I followed the instructions to calibrate the device by pulling in less water on the 1000uL setting using the tool provided. This works by unscrewing a plastic nut below the plunger. The more I unscrewed it, the more unstable the plunger felt. But I was still only down to about 1.050g for my 1000uL measurement of water. So I kept unscrewing. And, sure enough, the plastic nut popped off and out came the spring from under the plunger.So it is impossible to calibrate my device to anything close to 1.000g for the 1000uL setting. The plastic calibration nut will literally pop off before I can get the device to the amount of water to even be close. I verified that the amount was wrong both by calibrating my scale and by emptying the water into a graduated cylinder on the scale (tared, of course). The other two devices were in agreement about the inaccuracy.Would the seller send me a new device? I'm sure they would. But this experience was so frustrating and the quality of the calibration nut was so bad that I really wouldn't want to go through the hassle of risking yet another bad experience with this device.
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