TDS-4: Pocket-Size TDS Meter

The TDS-4 is an ideal pocket meter that can be used for any and all applications, ranging from water purification, to hydroponics, to aquariums, to industrial waste water treatment.

FEATURES:

• Pocket size makes it ideal for portability and storage.
• Hold Function
• Auto-off Function (After 10 min.)
• Factory calibrated with 342 ppm NaCl solution.