Battery-operated pH meters, Portamess®

Portable. With a range of functions equivalent to high-quality laboratory bench models. Simple operation via the graphics interface. Waterproof housing. Compact, ergonomically designed, comfortable to handle shape. For industrial applications, environmental protection, food production and water/waste water analysis.

Supplied with batteries, electrode holder, carrying strap (electrode not included).

Portamess^® 911 pH, basic instrument.

Measuring ranges:

• pH: -2.00 to +16.00


• mV: -1300 to +1300


• °C: -20.0 to +120 °C

Measuring error (±1 Digit):

• pH: < 0.01


• mV: < 0.1 % of value ±0.3 mV


• °C: < 0.3 K

Electrode adjustment: Calimatic^® automatic calibration with automatic buffer recognition, choice of 8 buffer sets
Temperature compensation: Pt 1000 / NTC 30 kW (automatic recognition when switching on) or manual
Interference suppression: EN 50 081-1 and EN 50 081-2
Interference immunity: EN 50 082-1. EN 50 082-2 and NAMUR NE 21
Housing: PA, IP 66 protection level with integral electrode sleeve
Operating hours: 2000 with 3 AA cell batteries
Dimensions (W x D x H): 133 x 30 x 160 mm
Weight: approx. 560 g including batteries