à¤Ã×èͧÇÑ´¡Ã´´èÒ§ pH Meter EC Meter Conductivity Meter à¤Ã×èͧÇÑ´¤ÇÒÁ¹Óä¿¿éÒ à¤Ã×èͧÇÑ´¤èÒ¾Õ-àͪ à¤Ã×èÍÇÑ´¡Ã´´èÒ§ PH meter > à¤Ã×èͧÇÑ´¡Ã´´èÒ§ ¾Õàͪ ÁÔàµÍÃì PC900: Conductivity, TDS, Salinity, Resistivity, pH, mV and Temperature 7 IN 1 Professional pH/ORP/Conductivity/TDS/Temp Meter PC900 à¤Ã×èͧÇÑ´¡Ã´´èÒ§ 7-in-1 Meter with Lab-Quality Performance This meter is a perfect combination with the most advanced electronic technology, sensor technology and software design. The meter can measure the parameters of pH, mV, conductivity, TDS, salinity, resistivity, DO and temperature for high accuracy water solution. It is the best portable water analysis meter with the highest performance and the lowest cost. It is suitable for the trade such as the mining industry, power plant, water treatment projects and environmental protection, etc., especially has more extensive application in the field and spot test Specifications pH Measuring range -2.00 to 19.99pH Resolution 0.1/0.01 pH Accuracy Meter:±0.01pH; Complete Kit: ±0.02pH Input current ≤2×10-12 A Input impendence ≥1×1012 Ω Stability ±0.01 pH/3h Temp. Compensation Range 0 to 100℃ (automatic) ORP (Probe is optional) Measuring range (mV/ORP/EH) -1999 mV to 0 to 1999mV Resolution 1mV Accuracy Meter:±0.1% FS Conductivity: 0.00~19.99μS/cm; 20.0~199.9μS/cm; 200~1999μS/cm; 2.00~19.99mS/cm; 20.0~199.9mS/cm TDS: 0 ~ 100g/L Salinity: 0 ~ 100ppt Resistivity: 0 ~ 100MΩ·cm Temperature 32 to 212°F (0 to 100°C) Resolution 0.01/0.1/1μS/cm 0.01/0.1 mS/cm Accuracy Meter: ±1.0% FS, Overall: ±1.5% FS Temp. compensation range 0 ~ 50℃ (automatic) Electrode constant 0.1 / 1 / 10 cm-1 Benchmark temperature 25℃, 20℃and 18℃ Other Technical Parameters: Data Storage 300 groups Storage Content Series number, measuring value, measuring unit and temperature Power Two AA batteries (1.5V x2) Size and Weight Meter: 65×120×31mm/180g Quality and Safety Certification ISO9001:2000, CE and CMC Working Condition: Environment Temperature 5 to 35 ℃ (0.01 grade) Environmental Humidity ≤85% IP Rating IP57 Dustproof and waterproof AMTAST PC900 pH Meter à¤Ã×èͧÇÑ´TDS à¤Ã×èͧÇÑ´¡Ã´´èÒ§ à¤Ã×èͧÇÑ´¤ÇÒÁ¹Óä¿¿éÒ à¤Ã×èͧÇÑ´¤ÇÒÁà¤çÁ à¤Ã×èͧÇÑ´¤Ø³ÀÒ¾¹éÓ