7000 Series Waterproof Multi-Function Pen Type Meters Feature Microprocessor based for fast and accurate measurements. Special viewing angle designed of waterproof housing IP 57 rated. It floats on water. Large LCD display pH or ORP or Conductivity or TDS or Salinity or DO and Temperature Simultaneously. Simple to calibrate by one keyboard and automatic temperature compensation(ATC), Manual Salinity(MSC) and Altitude(MAC) Compensation. Multi-functions with Data-hold, Max/Min and shows PTS after calibration. Degree ℃/℉ are switchable. Low battery and consumption indicator. Auto power shut off after 10 minutes of non use. Easy to replace electrode module, and the type of electrode would be recognized automatically and shown in display during insertion. Specifications 7200 7011 7021 pH mV Temp. Cond. TDS Salt Temp. Range -2 ~ 16.00 -1000 ~ 1000 0 ~ 90 ℃ 0 ~ 2000 μS 2.00~20.00 mS 0 ~ 1300 ppm 1.30 ~ 13.00 ppt 0 ~1000 ppm 1.00 ~ 12.00 ppt 0 ~ 90 ℃ Accuracy ± 0.01 1digit ±2 1digit ± 0.2 1digit ± 2% FS ( Cond., TDS, Salt) ± 0.2 ℃ 1digit Resolution 0.01 1 0.1 ℃ 1 μS/0.01 mS 1 ppm/0.01 ppt 1 ppm/0.01 ppt 0.1 ℃ ATC 0 ~ 90 ℃ 0 ~ 50 ℃ Calibration pH 4.00, 7.00, 10.01 0, 1413 μS, 12.88 mS Power DC1.5V x 4 battery size:AAA/UM-4 7031 DO O2 Temp Range 0~20.00mg/L 0~200% 0~90.0℃ Accuracy ±0.2 1digit ± 2% FS ±0.2 1 digit Resolution 0.01 0.1 0.1 ATC 0~50 ℃ MSC 0~50 ppt MAC 0-20000 ft Calibration 100% in air Power DC1.5V x 4 battery size:AAA/UM-4 Dimensions Meter: 195 x 40 x 36 mm, Kits: 230 x 205 x 50 mm Weight Meter: 135g(with battery), Kits: 780g Accessories for complete kit: 7011 7021 7031 7200 Sensor pH Cond. Cell DO pH Cond. Cell Standard Solution pH 4 & 7 1413 μS None pH 4 & 7 1413 μS Soaking Solution Yes None Yes Yes Battery 1.5 × 4, Lanyard connection, Carring case, Instruction manual Optional: OPR Electrode