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Dwyer Series PHO-1 PH/ORP

Detail Dwyer Series PHO-1 PH/ORP

Series PHO-1 pH/ORP/Temperature Meter

0 to 14 pH, Automatic Temperature Compensation, Data Logging

The microprocessor based pH/ORP/Temperature Meter offers quick response and high accuracy. Simultaneously measure and display pH from 0 to 14 pH (0 to 1999 mV) and temperatures up to 200°F (100°C). Model PHO-1 meter features manual or automatic temperature compensation, auto buffer recognition, and data logging capabilities, and the recording interval can be defined by the user. The Model PHO-1 accepts any pH electrode with a BNC connector.
For additional convenience, select model PHO-1K kit, which contains a meter, RS-232 cable, batteries, software, pH electrode, temperature probe, gender changer, carrying case and manual.


  • PHO-1
    pH/ORP/temperature meter.
  • PHO-1K
    pH/ORP/temperature kit.Specifications
Specification : 
  • Input:
    pH electrode with BNC connector, temperature probe.
  • Range:
    pH: 0.00 to 14.00 pH; mV: 0 to 1999 mV).
  • Temperature:
    32 to 200°F (0 to 100°C).
  • Operating Temperature:
    32 to 122°F (0 to 50°C).
  • Compensated Temperature Limit:
    Manual (MTC): 32 to 200°F (0 to 100°C); Automatic (ATC): 32 to 200°F (0 to 100°C).
  • Operating Humidity:
    Max. 80% RH.
  • Sampling Rate:
    About 1.5 time/sec.
  • Power Requirements:
    (6) AA alkaline batteries, included, user replaceable.
  • Battery Life:
    Approximately 120 hours.
  • Power Current:
    Approximately 20 mA DC.
  • Data Output:
    RS-232 PC serial interface.
  • Dimensions:
    7.4″ x 2.9″ x 2″ (187 mm x 73 mm x 53 mm).
  • Weight:
    1 lb (.45 kg) meter only.

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