YSI Pro20 Dissolved Oxygen/Temperature Portable dissolved oxygen meter

(ALAT UKUR DO TERAKURAT) Parameter : 1) Dissolved Oxygen mg/L Range : 0 to 50 mg/L Resolution : 0.01 or 0.1 mg/L (user selectable) Accuracy : 0 to 20 mg/L, ± 2% of the reading or ±0.2 mg/L, whichever is greater; 20 to 50 mg/L, ± 6% of the reading 2). Dissolved Oxygen % Saturation Range : 0 to 500% Resolution : 0.1% or 1% air saturation (user selectable) Accuracy : 0 to 200% air saturation, ± 2% of the reading or ±2% air saturation, whichever is greater; 200 to 500% air saturation, ± 6% of the reading 3). Temperature Range : -5 to 55°C (0 to 45°C; DO compensation range for mg/L ) Resolution : 0.1°C Accuracy : ±0.3°C 4). Barometer Range : 400 to 999.9 mmHg Resolution : 0.1 mmHg Accuracy : ±5 mmHg within ±5°C temperature range from calibration point Other Spesification : Size : 8.3 cm width x 21.6 cm length x 2.3 cm depth (3.25 in. x 8.5 in. x 2.25 in.) Weight : with Batteries 475 grams (1.05 lbs.) Power : 2 alkaline C-cells providing 400 hours of battery life; low battery indicator on Pro20 Cables* : 1- 4- 10- 20- 30- and 100-m lengths (special order up to 100-m) (3.28, 13.1, 32.8, 65.6, 98 ft.) Salinity Input : Range 0-70 ppt; manual (automatically compensates for manual input value) Data Memory : 50 data sets Languages : English, Spanish, German, French Certifications : RoHS, CE, WEEE, IP67 waterproof, 1-meter drop test Tough. IP67, impact-resistant, waterproof case even without the battery cover. User-replaceable cables and sensors. Choose polarographic or galvanic for the field or a self-stirring BOD probe for the lab. One Touch Cal allows easy DO calibrations within 3 seconds with the press of a button. Automatic barometric pressure compensation. Quick response times; 95% response time in approximately 8 seconds with standard membrane (fastest response time in the market)