Points of calibration1-2 pts

Measuring range 0-100.0ppm, 0-1000ppm, 0-10.00ppt
Resolution 0.1/1ppm, 0.01ppt
Relative accuracy ±1 % F.S.
Stability measurement indication YES
Auto off YES
Display LCD
IP Protection IP 67
Power supply 4×1,5V AAA batteries
Battery life > 200 hrs
Warranty instrument / sensor 1 Year / 6 months