(the one on the left of the image)
Model: SP80PC Handheld Meter
Location: 36-362
Vendor: VWR
Instructions: specifications, instruction manual
Measures pH, temperature, conductivity, etc
pH accuracy: ±0.002
pH range: --2.000 to 19.999
Temperature accuracy: ±0.1°C
Temperature range: --5 to 105°C (23 to 221°F)
Conductivity accuracy: 0.5% ±1 digit or 0.01 µS/cm, whichever is greater
Conductivity range: 0 to 3000 mS
Price: $841 (includes electrode and probe)
Purchase Date: June 2012 by Chia Wei Hsu