HM Digital Replacement pH sens PH-200 Replacement Probe (Replacement pH/Temp Sensor for PH-200) Measures pH and Temperature $35.85 $54.95
HM Digital Replacement Probe C COM-300 Replacement Probe Specifications (Replacement pH/EC/TDS/TEMP Sensor for COM-300) Measures pH, Conductivity(EC), TDS, and Temp Measures Temperature Probe: ABS material Stainless steel sensor pins Thermometer: Yes Glass pH sensor with... $40.40 $62.95
HM Digital Replacement TDS/EC HM-500 TDS/EC Replacement Probe Specifications (Replacement EC/TDS sensor for HM-500) Measures Conductivity and TDS Measures Temperature Probe: Heat resistant ABS Material Cable: 78.7? (2m) $28.90 $44.95
