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| pH | Measuring Range | 0-14.0pH |
| Resolution | 0.1pH | |
| Accuracy | ±0.1pH±1 | |
Temperature Compensation | None | |
| Technical Parameters | Automatic Correction | 7.00pH |
| Power | 2 batteries(AAA),1.5V*2,Continuous use for more than 100 hours | |
| Size and Weight | 39x25x176mm/95g | |
| Waterproof Level | IP57 |

| Conductivity | Measuring Range | (0-10.00)mS/cm,Three segments, automatic switching range: (0-99.9)uS/cm (100-999)uS/cm (1.00-10.00)mS/cm |
| Resolution | 0.1/1uS/cm;0.01mS/cm | |
| Accuracy | ±2%FS | |
Temperature Compensation | (5-50)℃(automatic) | |
| Technical Parameters | Automatic Correction | 1413uS/cm |
| Power | 2 batteries(AAA),1.5V*2, Continuous use for more than 100 hours | |
| Size and Weight | 39x25x176mm/87g | |
| Waterproof Level | IP57 |

| TDS | Measuring Range | (0-5.00)ppt,Three segments, automatic switching range: (0-49.9)ppm (50-499)ppm (0.50-5.00)ppt |
| Resolution | 0.1/1ppm;0.01ppt | |
| Accuracy | ±1%FS | |
Temperature Compensation | (5-50)℃(automatic) | |
| Technical Parameters | Automatic Correction | 4.20ppt |
| Power | 2 batteries(AAA),1.5V*2,Continuous use for more than 100 hours | |
| Size and Weight | 39x25x176mm/87g | |
| Waterproof Level | IP57 |

| ORP | Measuring Range | ±100mV |
| Resolution | 1mV | |
| Accuracy | ±0.5%FS | |
| Technical Parameters | Power | 2 batteries(AAA),1.5V*2, Continuous use for more than 100 hours |
| Size and Weight | 39x25x176mm/87g | |
| Waterproof Level | IP57 |

| Model | 5051Pen Salinity Meter | 5052Pen Seawater Salinity Meter | 5053Pen High Concentration Salinity Meter | |
| Salinity | Measuring Range | 0-5.00 ppt | 0-100.0 ppt | (0-20)% |
| Resolution | 0.01 ppt | 0.01/0.1 ppt | 0.10% | |
| Accuracy | ±1%FS | ±1.5%FS | ±2%FS | |
Temperature Compensation | (5-50)℃(automatic) | (0-60)℃(automatic) No temperature display | (5-50)℃(automatic) | |
| Technical Parameters | Automatic Correction | 3.00 ppt | 50.0 mS | 1 Point Correction |
| Power | 2 batteries(AAA),1.5V*2,Continuous use for more than 100 hours | |||
| Size and Weight | 39x25x176mm/87g | |||
| Waterproof Level | IP57 | |||





1. Can I get some samples?
You can get the pipette and portable pen type PH meter for free, but you need to pay for the
express fee. Meanwhile, other products you need to pay the sample fee.
2.How about the delivery time?
1). For sample order will be prepared within 5 days.
2). For bulk order, it needs 15-20 days, it is based on your quantity.
3.How about the payment?
T/T, L/C
4.How about your service?
1). Any questions will be replied within 24 hours.
2). Professional manufacture, good quality, competitive.
3). All products will be strictly checked and well-packed before shipping.
4). If you order FCL and the broken more than 2%, we will replace you at next bulk order.
5). If you have any question, please feel free to contact me at any time.
New products from manufacturers at wholesale prices