pH6221 Portable Standard Type pH Meter, -2.000 ~ 16.000 pH, Shanghai Sunny Hengping Scientific Instrument Co., Ltd (CAT#: STEM-AI-0129-YJL)

pH 6221 Portable Standard Type pH Meter, -2.000 ~ 16.000 pH, is manufactured by Shanghai Sunny Hengping Scientific Instrument Co., Ltd.
Large anti-attrition LCD screen, high definition dot-matrix background illumination
USB Interface: Data transfer software by USB connect to PC
Calibration point, slope can be record for each measurement mode
Temperature offset adjusting function
Built-in rechargeable Li-battery with low battery indicator (Bench-top Meter)
Beep sounds

pH measurement range: -2.00 ~ 16.00 pH
mV measurement range: -2000 ~ 2000mV
Temperature range: -5.0～120.0℃, 23.0～248.0℉
Temperature Compensation: Auto/Manual
Measurement resolution: 0.01pH, 0.1mV, 0.1℃, 0.1℉
Accuracy: ±0.01pH, ±0.2mV, ±0.3℃, ±0.5℉
Calibration: Continuous 5-point standard solution calibration
Memory function: 100 groups of data memory
Automatic shutdown: can be set (default 10 minutes after no action)

Large 3.2-inch LCD multi-line wear-resistant display screen
Power: 2x1.5V AA batteries
Reading lock function: on/off selectable
Temperature offset adjustment function
Electrode calibration result Offset/Slope display
One-click to set high brightness backlight
With Beep key sound effect
Electrode performance self-diagnostic display
Optional software data acquisition system
Optional USB communication interface
Optional data acquisition software and software CD

pH6231 Portable Professional Type pH Meter (CAT#：STEM-AI-0128-YJL)