à¤Ã×èͧÇÑ´¤èÒ ¡Ã´´èÒ§, ¤ÇÒÁ¹Óä¿¿éÒ, ·Õ´ÕàÍÊ, ¤ÇÒÁà¤çÁ, ÍسËÀÙÁÔ PH/mV/Conductivity/TDS/Salt/Temp Waterproof Tester AMT03 AMTAST Features: Large LCD displays pH or ORP or Conductivity or TDS or Salinity and Temperature simultaneously. Waterproof IP-57 standard and rugged design for field use conveniently. It floats on water. Automatic Temperature Compensation (ATC) and degree °C/°F switchable. Displays function mode automatically during insert sensor module. Icon PH, ORP, COND, TDS, Salt and unit pH, mV, µS, mS, ppm, ppt, °C, °F for recognition easy during select function mode. Displays Maximum/Minimum value and data hold. Low battery and consumption indicator. Auto shut off after 10 minutes of non use. Easy to replace Conductivity cell, pH electrode or ORP electrode module by user. Specifications: pH ORP Temp. Range -2~16.00 -1000~1000 0~90.0°C Accuracy ±0.01 + 1 digit ±2 + 1 digit ± 0.2°C + 1 digit Resolution 0.01 pH 1 mV 0.1 °C ATC 0~90°C Calibration 4.00, 7.00, 10.01 Conductivity TDS Salinity Range 0~2000 µS 2.00~20.00 mS 0~1300 ppm 1.30~13.00 ppt 0~1000 ppm 1.00~12.00 ppt Accuracy ±2% FS (Cond. ‘ TDS ‘ Salt) Resolution 1 µS/0.01 mS 1 ppm/0.01 ppt 1 ppm/0.01 ppt ATC 0~50°C Calibration 0 µS, 1413µS, 12.88 mS Power DC1.5V×4 battery (UM-4/AAA) Dimensions Meter: 195×40×36 mm, Kits: 230×205×50 mm Weight Meter: 135g (with battery), Kits: 780g