Specification :
RS-100B Nutrient-Wand Precision Digital PPM/EC/CF Tester£¨3 in 1£©
Range: PPM: 0--9990, EC: 0.0¡ª10.0, CF:0--100, Resolution: 10ppm (mg/l); 0.1 EC (mS/cm),, 1 CF,
Accuracy: ¡À2% F.S; ¡À2% F.S. ¡À2% F.S.
Temp.¡æ: 5--45¡æ (ATC)
TDS Calibration: One-point at 1382 ppm;
TDS Factor: 500ppm = 10CF= 1EC or 700ppm = 10CF= 1EC,
Features: Automatic switch-off function: After 5 minutes without pushing
Battery Life: DC 9V ; Display: 3½ LCD with illumination(Blue background)