Extech EC400 ExStik Conductivity/ TDS/ Salinity Meter

Extech EC400 ExStik® Conductivity / TDS / Salinity ... With the EC400 ' s dynamic cell-constant technology it is possible to measure a wide range of Conductivity, TDS, Salinity and 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 the 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 of 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) .