· Model : RPB10
· pH : 0.0~14.0 pH
· Accuracy : 0.1 level
· Power supply : button battery 1.5V 4 sections
· Waterproof design : waterproof level up to IP65
 

 
· Model: PHB-5
· pH : 0.00 ~ 14.00 pH
· ORP : -1400~1400 mV
· Connector ：BNC
· Temperature Compensation ：0 to 60°C , automatic
 

 
· Model: PHS-3D
· pH : -2.00 ~ 18.00 pH
· ORP : -1999~1999 mV
· Temperature : 0.0 ~ 100.0°C
· Calibration points : 2
· Connector ：BNC
· Temperature Compensation ：0.0 to 100.0°C , automatic
 

 
· Model : PTE920
· pH : -2.000 ~ 20.000 pH
· ORP : -1999.9~1999.9 mV
· Temperature : 0 ~ 105°C / 32 ~ 221°F
· Calibration points : 1 ~ 5
· Data storage ：500 sets
· Connector ：BNC, 3.5 mm jack socket
· Temperature Compensation ：0 to 100°C / 32 to 212°F, manual or automatic
 

 
Model: TPS series
Potential control range: ±2V，±4V,Continuously adjustable
Current control range: ±2μA～±200mA A total of six gears can be continuously adjusted
Features: TPS-2B is the basic type The TPS-2C is compatible with all the functions of the TPS-2B, and is also equipped with an ultra-low frequency step sweep function with adjustable 0~±1V peak value. The TPS-2D is compatible with all the functions of the TPS-2C, with a built-in printer, and the USB interface can be connected to a PC. Equipped with computer working software