DO600-K: Waterproof ExStik® II Dissolved Oxygen Meter Kit Kit with DO600, replacement membrane kit, and 16ft (5m) extension cable with probe guard Features: Kit includes DO600 meter, DO603 membrane kit, 16ft (5m) extension cable, weighted probe guard and carrying case Oxygen level displayed as % Saturation or Concentration (mg/L [ppm]) Adjustable Altitude Compensation (0-20,000ft in 1,000ft increments) Adjustable Salinity Compensation from 0 to 50ppt Analog bargraph indicates trends Memory stores up to 25 data sets with DO and Temperature reading Self calibration on power up Data Hold, Auto power off, Low battery indicator Specifications: DO Range: 0 to 20.00 mg/l DO Resolution: 0.01 mg/l DO Accuracy: +/-2% FS Temp Range: 0 to 50 C Temp Resolution: 0.1 C Temp Accuracy: +/-1 C ATC Range: 0 to 50C (32 to 122F) Salinity Compensation: 0 to 50 ppt in 1 ppt (part per thousand) increments Altitude compensation: 0 to 20,000 ft (in 1000 ft increments) Measurement storage: 25 tagged (numbered) readings Operating conditions: 32 to 122 F (0 to 50 C) /< 80% RH Display: 2000 count, dual function 3.5 digit LCD with bargraph Dimensions: 1.4 x 6.8 x 1.6" (35.6 x 172.7 x 40.6mm) Weight: 3.8oz (110g) Warranty: 1 year (meter) DO Meter DO600-K Extech à¤Ã×èͧÇÑ´ DO à¤Ã×èͧÇÑ´ÍÍ¡«Ôਹ㹹éÓ