Dissolved Oxygen meter

Portable/Handheld pH/mV/Dissolved Oxygen/DO Meter
Model: SX725   Product Description Basic Specifications

Category	Product Name	Basic features and specifications
PH	Measuring range	(-2.00 ~ 19.99)pH
	Resolution	0.1/0.01 pH
	Accuracy	Meter:±0.01pH; Overall: ±0.02pH
	Input current	≤2×10-12 A
	Input impendance	≥1×1012 Ω
	Stability	±0.01 pH/3h
	Temp. compensation range	(0 ~ 100)℃(automatic)
ORP	Measuring range (mV/ORP/EH)	-1999mV ~ 0 ~ 1999mV
	Resolution	1mV
	Accuracy	Meter:±0.1% FS, Overall: ±15mV
Dissolved Oxygen	Measuring range	(0 ~ 40.00)mg/L(ppm) (0 ~ 200.0)%
	Resolution	0.1/0.01 mg/L(ppm) 1/0.1 %
	Accuracy	Meter:±0.10 mg/L, Overall:±0.40 mg/L
	Response time	≤30 s(25℃, 90%response)
	Residual current	≤0.1 mg/L
	Temp. compensation range	(0 ~ 45)℃(automatic)
	Salinity compensation range	(0 ~ 45)ppt(automatic)
	Atmospheric pressure compensation range	(66 ~ 200)kPa (manual)
	Automatic calibration	Air saturated by water; water saturated by air
	Electrode type	Polarogram type
Other Technical Parameters	Data storage	200 groups
	Storage content	Series number, measuring value measuring unit and temperature,
	Power	Two AA batteries (1.5V x2)
	Size and weight	meter:(65×120×31)mm/180g;Suitcase: (360×270×76)mm/1.6Kg
	Quality and safety certification	ISO9001:2000, CE and CMC
Working Condition	Environment temperature	5 ~ 35 ℃(0.01grade)
	Environmental humidity	≤85%
	IP rating	IP57 Dustproof and waterproof

  Packaging & Shipping  Package List: 1. Model 725 portable pH/DO meter 2. Model 201T-S plastic pH three-in-one eletrode 3. Model DO500 dissolved oxygen eletrode 4. pH calibration solution (4.00, 7.00, 10.01pH/50ml) 5. Carring case   Company Information  Company Profile: Founded in 1991, Shanghai San-Xin Instrumentation Inc. specializes in research, manufacture and sale of electrochemical devices and electrodes ranging from pH, ORP, conductivity, ISE, DO to water hardness, turbidity, acid-alkali meters and electrodes. Our factory is located in Cao He Jing High-Tech Park, Shanghai, covering 1200 square meters.  
  San-Xin adheres to the philosophy of "honesty, sincerity, persistence and perfection" and the spirit of "credit, faith and trust" in pursuit of sustainable development. With efficient technology innovation, San-Xin's products and technology always maintain at the world-advanced level and ahead of counterparts in the domestic market. Up till now, San-Xin has successfully developed MP500 series of laboratory electrochemical devices, SX700 series of waterproof portable electrochemical instruments and SX600 series of waterproof pen testers. Newly developed benchtop and portable water hardness meters adopt electrode measurement and are the unique water hardness meters in the world which have won good reputation.
With 20 years of history, San-Xin always commits to brand development. Nowadays, San-Xin brand is renowned in both domestic and overseas market. Moreover, San-Xin series of products have been exported to many other countries and regions around the world. San-Xin's brand is expanding throughout the global market.  
With ISO 9001:2000 certified, San-Xin has a strict quality management system. All the products are CMC and CE marked. San-Xin has outstanding research capability, advanced technology and high quality on the one hand and provides professional technique supports and after-sales service on the other. Backed by its core technology and innovation, San-Xin has established successfully long-term cooperations with many well-known international companies for whom San-Xin works as an OEM.     San-Xin will further implement brand development strategy, promote quality management system and information procedures, enhance customer satisfaction and create a win-win situation between San-Xin and its customers. San-Xin is developing and striving to achieve new leaps and more success.   Certifications  Certifications