Dwyer Series PHO-1 pH/ORP/Temperature Meter


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Dwyer 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.


pH electrode with BNC connector, temperature probe.
pH: 0.00 to 14.00 pH; mV: 0 to 1999 mV).
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.
7.4" x 2.9" x 2" (187 mm x 73 mm x 53 mm).
1 lb (.45 kg) meter only.
Agency Approval:

Click here for product datasheet

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  • Dwyer Series PHO-1 pH/ORP/Temperature Meter