Handheld TDS Meter
This Korean-made pocket meter is ideal for all water purification applications, wastewater regulation, aquaculture, and hydroponics. Hold function saves measurements for convenient reading and recording. Auto-off function shuts the meter off automatically after 10 minutes of non-use to conserve batteries. Measurement range is 0-9990 ppm (mg/L). From 0-999ppm (mg/L), resolution is in increments of 1 ppm (mg/L); from 1,000 to 9,990 ppm (mg/L), the resolution is in increments of 10 ppm (mg/L), indicated by a blinking 'x10' image. The meter is factory calibrated and can be recalibrated with a watch screwdriver - no need for messy solutions.