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pH meter

The YSI EcoSense pH10A pH/Temperature pen features one-hand operation, 50-set memory and low cost. Measures 0 to 14 with an accuracy of ± 0.02. The pen has IP67 waterproof grey housing; ATC; auto-buffer recognition with 1-, 2- or 3-point calibration; and a repleaceble electrode. Real time clock provides data date and time stamp. "hold" feature locks reading on display, which has on-screen instructions. Has a belt clip and lanyard on the back and floats if dropped in water-

pH, Conductivity, TDS, Salinity meter

"The Extech EXSTIK II waterproof meter has a rugged combination, flat-surface pH electrode [with auto-ranging], high-accuracy cell. RENEW feature alerts users when the electrode needs replacing. Adjustable conductivity to TDS ration from .4 to 1.0 and .5 fixed salinity ratio. Meter also has ATC, auto shut-off and low battery indication. The internal memory stores up to 25 labeled readings for recall.
System Specs:
CONDUCTIVITY: range: 0-1,999 μS/cm - resolution: 0.1 μS/cm
TDS/SALINITY: range: 0-9.99 ppt - resolution: 0.1 ppm (mg/L)
pH: range: 0-14 - resolution: 0.01"


"Extech pocket-size waterproof thermometer. This thermometer uses a 2.75"" (70 mm) stainless steel stem to measure temperature. The digital display shows Fahrenheit (-40 to 392º) or Celsius (-40 to 200º) with ± .2ºF/± 1°C accuracy and .1º resolution.
Capable of max/min recall of high and low temperatures, each has data hold and auto shut-off. Includes one LR44 button battery and a protective cover. OAL is 6""."