
Portable pH Meters
PHH-65D
ELECTRONICS
OMEGA® portable pH meters are designed to be reliable, 
low-cost instrument for pH, specific ion, and redox potential 
measurements directly at the sampling site. The PHH-65A and 
PHH-65D are equipped with 8 AA batteries and are housed 
in rugged, high-impact cases that contain and protects the 
meter and associated accessories. For ease of use, simple 
operating instructions are contained in the inside cover for 
handy reference. These units come complete with a gel-filled 
combination pH electrode, buffer solutions (pH 4, 7, 10) and 
operator’s manual.
PHH-65A complete  
kit as shown.
PHH-65D Digital pH Meter
The PHH-65D meter features a 3¹⁄₂-digit, 12.7 mm (¹⁄₂") high LCD 
display that is easy to read even in the brightest sunlight. This 
instrument is capable of measuring pH values from 0 to 14 with an 
accuracy of 0.05 pH and 0 to 1,999 mV with an accuracy of ±1 mV.
PHH-65A
Complete Kit
PHH-65A Analog pH Meter
The PHH-65A meter features a large 6-inch analog scale for 
reading both normal (pH 0 to 14, ±700 mV) and 10x expanded 
scale reading (±70 mV and any 1.4 pH full scale). Using 
the expanded scale, accuracies as great as 0.01 pH can be 
achieved for critical applications.
Specifications
Range: 0 to 14 pH, ±700 mV (±1999 mV with PHH-65D) 
Accuracy: ±0.05 pH, PHH-65A; ±0.01 pH, PHH-65D and 
PHH-65A expanded scale; ±1 mV, both models
Input Impedance: >10 
Temperature Compensation: 0 to 100°C (32 to 212°F), manual 
Connector: BNC 
Power: 8 “AA” batteries (included) 
Dimensions: 114 H x 311 W x 203 mm D (4¹⁄₂ x 12¹⁄₄ x 8") 
Weight: 1.8 kg (4 lb) 
Optional Accessories: Recommended replacement 
electrode, PHE-1304
10
 Ω
Order Online
Over 100,000 Products Available!
To download information and to order pH Field and 
Lab Instrument products online, visit omega.com
B-34