Eutech pH 450

Range -2.00 to 16.00 pH
Resolution 0.01 pH
Accuracy ±0.01 pH
Calibration
Up to 5 points (USA & NIST & CUSTOM)
Up to 6 points (DIN)

mV 
Range ±2000 mV
Resolution 0.1 mV ±999.9 mV; 1 mV beyond
Accuracy ±0.2 mV +2 LSD or +0.5 % of reading;
whichever is greater
Calibration ±200 mV
ION 
Range 0.0 to 2000 ppm
Resolution 0.01 / 0.1 / 1 ppm
Accuracy
±0.5 % full scale (monovalent);
±1 % full scale (divalent)

Calibration From 2-4 or 2-5 points:
0.10, 1.00, 10.0, 100.0 & 1000 /
0.20, 2.00, 20.0, 200.0 & 2000 /
0.50, 5.00, 50.0 & 500.0
Temperature 
Range -10.0 to 110.0 ºC (14.0 to 230.0 ºF)
Resolution 0.1 ºC/ºF
Accuracy ±0.5 ºC; ±0.9 ºF
Calibration Offset in 0.1 increments, ±10 ºC or ±18 ºF
Others 
Display Custom LCD with backlight
Memory Stores up to 500 data sets
Output USB or RS232
Real-Time Clock Time and date stamp on calibration and stored data
Temperature Compensation Automatic or manual from -10 to 110 ºC
Power Two AA batteries (included), >500 hours (without backlight); AC adapter (optional)
Dimensions (L x W x H)
Meter: 7 7/8" x 3 1/8" x 2 1/4" (20 x 8.3 x 5.7 cm)
Boxed: 9 1/8" x 9 1/8" x 2 3/4" (23 x 23 x 7 cm)

Weight Meter: 1 lb (0.5 kg)
Boxed: 1.4 lb (0.7 kg)