· It can output directly digital signal, and aslo can convert to WIFI or GPRS signal.

· It is combintion sensor with pH,ORP, temperature and conductivity.

· Unique structure prevents the sensor from easy pollution and blockage,Long life.

· It is unnecessary to refill electrolyte, convenient use.

· pH range : 0~14pH; Pressure  range : 0.6Mpa.

· Temperature range : 0~80℃.

· ORP range : -1500mv ~ +1500mv.

· Conductivity range : 0 ~ 20000us/cm.

· The external dimension of the sensor is φ20x120mm.

· The thread is 3/4NPT.

· The outer tube material : PPS plastic. 

Selection of model:

· PT2121D digital pH sensor

· RT2121D digital ORP sensor

· PRT2121D   pH,ORP, temperature three in one digital sensor

· PRCT2121D  pH,ORP, conductivity,temperature four in one digital sensor

· Direct use with various pH meters as a complete set.

· The sensor has the fixed cable and the length of the cable can be adjusted according to 

   the requirements of the users.

· pH range : 0-14pH. 

· Temperature range : 0-80℃.

· Pressure range：0.6MPa.

· Zero point: E₀=7pH.

· The external dimension of the sensor is φ20×120mm.

Selection of model:

· PT2121  pH sensor

· PR2121 pH ,ORP two in one combination sensor

· PRT2121 pH,ORP, temperature three in one combination sensor

· PRCT2121 pH,ORP,conductivity ,temperature four in one combination sensor

· PRC2T2121 pH,ORP,conductivity ,temperature four in one combination sensor，

                      special for PRCT3000 digital module

· It can directly connect with analog pH sensor .

· It can convert analog signals to digital signals.

· ASP200-3 (transparent)

· ASP200-4 (light blue)

· ASP200-5 (yellow)

· It is the conductivity sensor for swimming pool. 

· Measurement  cell : Titanium(Ti)  stainess steel. 

· Outer tube material: plastic. 

Selection of model: 

· For common occasion:

· With temperature compensation ,please note the value of thermistor when order.