Based on the premise of technological innovation and improvement of our tds meter, Pocket TDS Tester, we continue to surpass and improve ourselves, and have been supported and trusted by our customers. Our company continues to design and manufacture its core products, with particular attention to the establishment, control and safety of the tds test pen product chain. Our state-of-the-art facilities and equipment allow us to remain at the forefront of innovation and technology. Through the joint efforts of enterprises, users, employees and society, we create a win-win cooperation and development pattern together. After a long time of exploration and debugging by our engineers and technicians, our latest products have come out. We are committed to providing exceptional value to our clients by offering high-quality products at competitive prices. With superb technology and precise testing equipment, perfect marketing and after-sales service system, we can continue to promote management, enhance corporate image, and optimize product structure.
  • Pocket TDS Tester
    Model: TDS-1H (High range), TDS-1L (Low range)
    Measuring range: 0~9999 PPM, 0~2500 PPM
    Accuracy: ±2% FS
    Resolution: 1 PPM
  • Pen-Type Conductivity Meter
    Model: DDB-12H, DDB-12L
    Measuring range: 0-25ms, 0-1999μs
    Resolution: 0.01ms, 1μs
    Precision: ±0.02ms + 2% FS, ±2μs + 1% FS
  • Portable DO Meter
    Dissolved Oxygen Measurement Range: (0.00~20.00) mg/L
    Temperature Measurement Range: (0~40)°C
    Dissolved Oxygen Basic Error: ±0.3mg/L
    Temperature Basic Error: ±1°C
  • Benchtop DO Meter
    Model: JPB-605
    Measuring Range: (0~19.99) mg/L
    Temperature: (0~40) °C
    Basic Error: ±0.3 mg/L
    Temperature Fluctuation: ±1°C
  • Conductivity Sensor Element
    Model: DJS-0.1, DJS-1, DJS-10
    Vessel Constant: 0.1±0.02, 1±0.2, 10±2
  • Benchtop ORP Meter
    Model: ORP-1
    Accuracy: 0.01
    Measuring Range: (0 ~ ±1999) mV; PH (0, 14)
    Resolution: 1 mV; PH 0.01
  • Handheld PH Pen
    Model: PH-220, PH-220B, PH-220BW
    Measuring range: pH: 0.01-14.0
    Resolution: PH: 0.01; Temperature: 0.1°C 1F
    Accuracy: PH: ±0.01; Temperature: 1°C/2F
  • Benchtop Multi-Parameter Carbon Dioxide Ion Concentration Meter
    Model: PXS-CO₂
    Concentration range: 1×10-2 ~ 5×10-5 mol/L
    PH range: <4
    Fill resistance: 300Ω or less (25℃)
  • Portable Multi-Parameter Iodide Ion Concentration Meter
    Model: BXS-I
    Measuring range: pI: (2~7)π; I+: 12.7μg/L~1.27g/L; mV: (-1800~1800)mV
    Resolution: 0.01pI
    Basic Error of the Electronic Unit: ±0.02pI ±1 word
  • Benchtop Digital Conductivity Meter
    Model: DDS-11A
    Measurement Range: 0 ~ 2 × 105 μS/cm
    Accuracy: ± 1% F × S
    Instrument Stability: 0.50%
  • Pen-Type Dissolved Oxygen Meter
    Pen-Type Dissolved Oxygen Meter for Aquaculture and Field Water Testing
    Model: JPB-80A
    Measuring range: (0 ~ 19.99) mg/L
    Temperature: (0 ~ 40) °C
    Basic Error: ±0.3 mg/L
  • PH Flat Electrode
    Model: E-201-M
    Measuring range (PH): 0~14
    Measuring temperature (℃): 0~60
    Zero (PH): 7±0.5
Christopher Castro star star star star star
This provider's services are comprehensive. In addition to supporting our market development projects, they also provide us with great help in terms of service and professional training.
Tracy Watts star star star star star
This manufacturer will have a detailed understanding of our current situation, needs, and target market, so the products they provide meet all our needs and are better than our own designs.
Kathrine Giardina star star star star star
This supplier delivers goods by express in a timely manner, which is very easy to use after opening and installing. It is convenient and clear at a glance.
Mark Bedwell star star star star star
Working with the team at this company is like getting free training with the purchase of a product. They told us a lot of professional and practical knowledge, which is very helpful to our daily
Louis Nieves star star star star star
The products are better than I expected, I am very satisfied, and the solutions they recommend are also suitable for me.
James Hogle star star star star star
In the case of more and more fierce competition in the industry, reflect good, standardized, humanized smile service can highlight the company's management service level.
Being supported by an advanced and professional IT team, we could offer technical support on pre-sales & after-sales service for Cross Base Overhead Stirrer, Portable Gloss Tester, Portable PH Pen. Hangzhou Qiwei Instrument Co., Ltd. is one of the most reliable manufacturers and suppliers of tds test pen in China, featured by quality products and good service. Please rest assured to buy bulk durable tds test pen in stock here from our factory. We also accept customized orders.
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