Large LCD with multiple parameters display simultaneously:
PH, Conductivity or Salinity, Dissolved oxygen & Temperature
Handheld fashion housing  with IP67 waterproof design.
Auto temperature compensation.
Auto ranging for conductivity measurement.
Multiple points calibration: 3 points for pH, 1point for D.O., 4 points for conductivity.
Manually altitude/salinity compensation for D.O. measurement.
99 points memories w/ recall function.
1 hour auto power off.

Specifications

pH range: 2.00~12.00
pH accuracy: +/-0.1
pH resolution: 0.01
Cond. range: 0~199.9, 0~1999uS/cm;0~19.99, 0~69.9mS/cm
Cond. accuracy: +/-1% F.S +/- 1 digit
Cond. resolution: 0.1uS/cm, 1uS/cm;0.01mS/cm, 0.1mS/cm
Salinity range: 0~10.00ppt; 0~42.0ppt(SEA WATER)
Salinity accuracy: +/-1% F.S +/- 1 digit
Salinity resolution: 0.01 ppt, 0.1ppt
D.O. range: 0.0~199.9% (0.0~30.0mg/L)
D.O. accuracy: +/-3% of F.S. +1 digit
D.O  resolution: 0.1
Temperature range: 0~60.0 grdC
Temperature accuracy: +/-0.5 grdC
Temperature resolution: 0.1
Compatible probe: PH PROBE, COND. PROBE AND D.O. PROBE
                  COULD BE ALL USED ON ONE METER AT THE SAME TIME
LCD size(mm): 32.5(H)x54(W)
Operating Temperature&RH%: 0~50 grdC,  Humidity < 80%
Storage Temperature&RH%: 0~60 grdC,   Humidity < 90%
Dimension(mm): 169(L)x78.3(W)x43.4(H)
Weight: 200g
Power: 6PCS AAA Batteries
Standard Package: Meter/Manual/Battery
Standard Probe: PH probe/Cond. Probe/D.O.Probe/D.O. Electrolyte/
                    2 Membrane set/Cable clip (User can decide which probe
                    to be included as standard)