Apera Instruments 201T-F All-in-one pH Electrode, ATC, BNC/RCA Connector, Polycarbonate Body AI1302

I bought this to replace a pH probe on my zeta potential machine. Works great for a fraction of the price i would have paid for VWR or the like.

Funciona bien, fácil calibración, buen producto

Funcionó perfecto

Using this to measure pool pH with the Apera PH700 meter. Replaced an older but identical model pH/temperature electrode that had linearity error, 84% during 3-point calibration. But the new unit is worse, coming in at 80%. The plastic cage on the old pH electrode also fragmented without any apparent impact. However, the screw-on probe KCl solution storage bottle is a nice feature.

I have used the Apera pH/EC meter for 2 years now it has held up just fine. The probes do need to be replace about every 12- 14 months as they basically were out.

Good quality at low cost.

Desafortunadamente el Electrodo llegó con una burbuja de aire dentro de la Membrana, por lo que al instalarlo arrojaba un error tipo 1. Lo enviamos a revisión a un laboratorio especializado y no pudieron hacer nada porque viene sellado. Por ese motivo lo tuve que devolver y a pesar de la urgente necesidad no he podido solucionar el problema