ZDST-2121 ‰Salt/Temp Digital Tester （2 in 1）
Range : 0‰ - 100‰ ( ‰PPt ); 0-90°C (32-194 °F)
Resolution: 0.1‰ ; 0.1°C / 0.2°F
Accuracy(23±5°C): 0‰ - 9‰ (± 1‰); 10‰ - 19‰(± 2‰); 20‰ - 29‰ (± 3‰)
30‰ - 49‰ (± 5‰); 50‰ - 79‰ (± 10-15‰); 80‰ - 100‰ (± 15‰-20‰)
Operating Temp: 5 - 45°C ( ATC ) / 41 °F - 113°F ( ATC )
Calibration: One point 35‰ Salt calibration buffer solution ( 3.5g NaCl/100mL pure water / 53 Salinity mS )
Power supply: DC 4 X 1.5V ( LR44 or AG13 )
Features: Automatic switch-off function: After 8-10 minutes without pushing buttons,
the meter will be switched off automatic. Data holding (for 8-10 minutes).
