Extech EC-400 Conductivity Pen Tester

With the EC400’ s dynamic cell-constant technology it is possible to measure a wide range of Conductivity, TDS, and Salinity with the same electrode. Careful use and maintenance will provide years of reliable service.

Features : 
Autoranging meter offers 3 ranges to measure from pure water to salinity solution to waste, boiler and cooling water using the same conductivity cel
6 selectable units of measure: ¼ S, mS, ppm, ppt, mg/ L, and g/ L
Internal memory stores up to 15 labeled readings for easy recall
Adjustable Conductivity to TDS ratio factor from 0.4 to 1.0
Self calibration on power up

Specifications : 
Display: 2000 count LCD with Bargraph.
Conductivity range : 0 to 199.9¼ S, 200 to 1999¼ S, 200 to 19.99mS.
TDS range : 0 to 99.9ppm or mg/ L, 100 to 999ppm or mg/ L, 1.00 to 9.99ppt or g/ L.
Salinity range : 0 to 99.9ppm, , 100 to 999ppm, 1.00 to 9.99ppt. TDS Ratio: 0.5.
Temperature range : 32.0 to 149.0° F ( 0.0 to 65.0° C.
Accuracy: 
Conductivity : ± 2% fs; 
TDS : ± 2% fs; 
Salinity : ± 2% fs; 
Temperature : ± 1.8° F/ 1° C; 
Automatic Temp. Compensation : 2% per ° C.
Measurement storage : 15 readings.
Low battery indication : ‘ BAT’ appears on the LCD.
Power : Four SR-44W button batteries : After 10 minutes of no button presses.
Operating conditions : 32 to 122° F ( 0 to 50° C) . Weight: 2.8 oz. ( 110g) .

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