Milwaukee pH Constant Monitor Meter (MTR-004) MILWAUKEE CONSTANT MONITORING METERS This Milwaukee series of EC, TDS (PPM) and pH Constant Monitoring Meters are designed to constantly monitor your solutions. They all feature a removable 12 volt power supply, and replaceable probes with a 6 foot cable. They have a setpoint that is selected by turning a knob on the front to the desired pH or TDS level, and if your solution exceeds (on the pH meter) or is lower (on the TDS and EC meter) than your setpoint, the meter alarm light will turn on. The EC and TDS monitor have automatic temperature compensation. The TDS meter will measure from 0 to 1990 P.P.M. and the EC monitor will measure from 0.0 to 10.0 EC. They come with a two year warranty on the meter and a 6 month warranty on the probe. Manufacturer's Product Information 2007 MSRP Each $ 100.95
