KL-139 TDS Tester (2 x CR2032)

Pros: -Works very well -Good quality of construction -Simple to use, just one button! -Has a Calibration screwdriver and Included calibration solution (very usefull) -Batteries last a very long time

Cons: - You HAVE to calibrate it as soon as you get it, the standard calibration is very off-point. Not really a problem since you have the solution and the screwdriver -ppm measure in the hanna scale, see below for the formula to convert to uS/cm

Other: It's a really good TDS tester, in the Hanna Scale, so if you need the standard values, here is the formula: (TDS)ppm = Conductivity µS/cm x 0.5 or Conductivity µS/cm = (TDS)ppm / 0.5 or just look in google a ppm to uS conversion calculator ans put the value "0.5" instead of the normal "0.67" Not really a problem

Pros: Ahora se que es lo que estoy tomando, si agua o barro, este instrumento tiene la precisión que requiero hasta para la fabricación de plata coloidal en casa. Tiene buen visor y un precio extremadamente razonable.

Cons: Este no tiene retenedor de lectura, hace falta ya que para leer en posiciones difíciles resulta algo complicado.

Other: Si tuviese que adquirir uno nuevamente me decidiría por este, resulta solido y de uso facilisimo, no se requirente una gran experiencia para hacer la lectura, las instrucciones son simples y claras.

Pros: Very good price for this good quality TDS meter. It is easy to calibrate the tool, after the calibration process it keeps measuring persistent, with very low deviation.

Cons: Actually not a single till now, it looks the tool works correct. I calibrate it with two different calibration solutions and it works great.

Other: Very good tool for the price. I personally found it very useful.