Product Name: Factory Supply Portable Dissolved Oxygen Analyzer Portable Do Meter Model NO.: DOS-1703 Measuring Range: 0.0~199.9% Accuracy: 1%Fs; +/- 0.2degree Resolution: 0.1%,0.01mg/L,0.1degree Temperature Compensation Range: -5.0~105degree Calibration: 2 Point Max. Date Storage: 99 Groups Overall Dimension: 230mm*100mm*35mm Power Supply: 4*AA/Lr6 Trademark: BOQU Transport Package: Carton Origin: Shanghai HS Code: 9027809900 Product Description DOS-1703 Portable Dissolved Oxygen MeterTechnical IndexesMeasuring rangeDO0.00--50.0mg/L0.0--500% Temp0…60ºC (ATC/MTC)Atmosphere300--1100hPaResolutionDO0.01mg/L,0.1mg/L(ATC)0.1%/1%(ATC)Temp0.1ºCAtmosphere1hPaElectronic unit measurement errorDO±0.5 % FSTemp±0.2 ºCAtmosphere±5hPaCalibrationAt most 2 point,(water vapor saturated air/zero oxygen solution)Power supplyDC6V/20mA; 4 x AA/LR6 1.5 Vor NiMH 1.2 V and chargableSize/Weight230×100×35(mm)/0.4kgDisplayLCD Sensor input connectorBNCData storageCalibration data;99 groups measurement dataWorking conditionTemp5...40ºCRelative humidity5%...80% (without condensate)Installation grade2Pollution grade2Altitude<=2000mDOS-1703portable dissolved oxygen meter is outstanding for ultra-low power microcontroller measurement and control, low power consumption, high reliability,intelligent measurement, using polarographic measurements, without changing the oxygen membrane. Having reliable, easy (one-hand operation) operation, etc.;the instrument can display dissolved oxygen concentration in two kinds of measurement results indicates, mg/L (ppm) and the oxygen saturation percentage (% ), in addition,measure the temperature of the measured medium simultaneously. FAQQ: Are you trading company or manufacturer ?A: We are factory.Q: How long is your delivery time?A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock,it is according to quantity.Q: Do you provide samples ?is it free or extra ?A: We can offer the sample, it is extraQ: What is your terms of payment ?A: 100% T/T in advance ,balance before shippment.If you have another question, pls feel free to contact us as below:Contact: Joyce WuTele: +86 021-20986176Mobile: +86 18321456979Looking forward to cooperating with you!