Hanna HI99301 携帯高範囲EC / TDSメーター（0.00 - 20.00 mS / cm）

ジャンク品です。

片方は電池入れて電源はつきましたが、液晶が見えづらく、もう一方は電池入れてもつきません。

EC Range: 0.00 to 20.00 mS/cm
EC Resolution: 0.01 mS/cm
EC Accuracy: ±2% FS
TDS Range: 0.00 to 10.00 ppt (g/L)
TDS Resolution: 0.01 ppt (g/L)
TDS Accuracy: ±2% F.S.
Temperature Range: 0.0 to 60.0°C / 32.0 to 140.0°F
Temperature Resolution: 0.1°C / 0.1°F
Temperature Accuracy: ±0.5°C /±1°F
Calibration: automatic, one point at 12.88 mS/cm, 6.44 ppt (CONV 0.5)
EC/TDS Temperature Compensation: automatic, 0 to 60°C (32 to 140°F) with β adjustable from 0.0 to 2.4%/°C with 0.1% step
EC/TDS Factor: adjustable from 0.45 to 1.00 with 0.01 step (default 0.50)
Electrode/Probe: HI76306 EC/TDS probe with internal temperature sensor, DIN connector and 1 m (3.3’) cable (included)
Battery Type/Life: 1.5V AAA (3) / approximately 500 hours of continuous use. auto-off after 8 minutes of non-use