TDS TESTER UP TO 2000 PPM SPECIFICATION: • RANGE : 1999 PPM (MG/L) • RESOLUTION : 1 PPM (MG/L) • ACCURACY : ±2% F.S.  TDS FACTOR : 0.5 • CALIBRATION : MANUAL, 1 POINT • TEMPERATURE COMPENSATION : AUTOMATIC, 0 TO 50°C (32 TO 122°F) • BATTERY TYPE / LIFE : 4 X 1.5V / APPROX. 200 HOURS OF CONTINUOUS USE • ENVIRONMENT : 0 TO 50°C (32 TO 122°F); RH MAX 95% • DIMENSIONS : 175 X 41 X 23 MM (6.9 X 1.6 X 0.9”) • WEIGHT : 95 G (3.4 OZ.) SUPPLIED WITH PROTECTIVE CAP, SCREWDRIVER, BATTERIES AND INSTRUCTIONS. ORIGIN : GABY INSTRUMENTS DELIVERY : IMMEDIATE