pHG-2081S Industrial Online pH Analyzer is a brand-new online intelligent digital instrument independently developed and manufactured by BOQU Instrument. This pH analyzer communicates with the sensor through RS485 ModbusRTU, which has the characteristics of rapid communication and accurate data. Complete functions, stable performance, easy operation, low power consumption, safety and reliability are the outstanding advantages of this pH analyzer. The pH analyzer works with digital pH sensor ,which can be widely used in industrial application such as thermal power generation, chemical industry, metallurgy, environmental protection, pharmaceutical, biochemical, food and tap water.
Technical Features
1) Extremely quickly and precision pH sensor.
2) It's suitable for harsh application and free-maintenance,save cost.
3) Provide two ways of 4-20mA output for pH and temperature.
4) Digital pH Sensor provide precision and online measurement.
5) With data recording function,user easy to check history data and history curve.
Dimension 
Technical Indexes | Specifications | Details |
| Name | Online pH ORP Meter |
| Shell | ABS |
| Power supply | 90 – 260V AC 50/60Hz |
| Current output | 2 roads of 4-20mA output (pH .temperature) |
| Relay | 5A/250V AC 5A/30V DC |
| Overall dimension | 144×144×104mm |
| Weight | 0.9kg |
| Communication Interface | Modbus RTU |
| Measure range | -2.00~16.00 pH-2000~2000mV-30.0~130.0℃ |
| Accuracy | ±1%FS±0.5℃ |
| Protection | IP65 |