Accessories Included:USB charger, power cable, and clips
Automatic Buffer Recognition:Yes
Backlight:Yes
Barometric Pressure Measurement:Automatic compensation of DO when using an LDO or LBOD probe
Calibration:Demal (1D/ 0.1D/ 0.01D);
Molar (0.1M/ 0.01M/0.001M);
NaCl (0.05%; 25µS/cm; 1000µS/cm; 18mS/cm);
Standard sea water;
User defined
Calibration Intervals/Alerts/Reminder:Off, selectable from 2 hours to 7 days
Certifications:CE, FCC, ISED, RCM, KC, ETL Verified: US DOE/ NRCan Energy Efficiency, RoHS
Conductivity measurement: Temperature correction:None; Linear; NaCl Non-Linear Natural Water.
Conductivity Measurement Range:Yes
Custom Calibration Standards:Yes
Data Export:USB connection to PC or USB storage device (limited to the storage device capacity).
Data Memory:100,000 data points
Data Storage:Automatic in Press to Read Mode and Interval Mode. Manual in Continuous Read Mode.
Dimensions (H x W x D):63 mm x 97 mm x 220 mm
Display:Up to 3 parameters at a time, dependent on HQ model
Display Type:536×336 Mono-TFT
DO Measurement Range:0.1 – 20.0 mg/L (ppm), 1 – 200% saturation
DO Resolution:0.1
Enclosure Rating:IP67 (with battery compartment installed)
GLP Features:Date; Time; Sample ID; Operator ID, Calibration
Inputs:3
Instrument:Portable
ISE Direct Measurement Range:Yes
ISE Electrode Calibration:Yes
Kit?:Meter only
Languages:English, Chinese – Simplified, Spanish, French, German, Italian, Japanese, Turkish, Dutch, Portuguese (PT & BR), Korean, Danish, Swedish, Polish, Norwegian, Hungarian, Greek, Finnish, Czech, Romanian, Croatian, Bulgarian, Slovak, Lithuanian, Estonian, Slovenian, Russian
Lock Function:Continuous / Auto-stabilization (“press to read”) / At Interval
Measurement Method:Probe specific programmed method settings
Model:HQ4300 Multi/ISE/3 Channels
mV Measurement at Stable Reading:Yes
mV Measurement Range:Yes
mV Resolution:0.1 mV
Operating Error Messages:Clear text error messages displayed
Operating Humidity:90% (non-condensing)
Operating Interface:Soft Touch Keypad
Operating Temperature:0 – 60 °C
ORP Electrode Calibration:Predefined ORP standards (including Zobell’s solution)
Parameter:pH, Conductivity, TDS, Salinity, Dissolved Oxygen, ORP, ISE
pH Buffer Sets:Colour-coded: 4.01, 7.00, 10.01 pH;
IUPAC: 1.679, 4.005, 7.000, 10.012, 12.45
DIN: 1.09, 4.65, 9.23
User-defined custom buffer sets
pH Electrode calibration:1 – 3 Calibration points
Calibration summary data logged and displayed
pH Measurement Range:0 – 14 pH
pH Resolution:Selectable:
0.001/0.01/0.1 pH
Power Supply:Rechargeable lithium-ion battery 18650 (internal)
Class II, USB power adapter: 100 – 240 VAC, 50/60 Hz input; 5 VDC at 2 A USB power adapter output (external)
Probes included:None
Probe Type:Intellical Standard Laboratory or Rugged Field
Protection Class:IEC Class III (SELV (Separated/Safety Extra-Low Voltage) powered); external
Region:US
Salinity Measurement Range:0 – 42 (ppt) (‰)
Salinity Resolution:0.01 (ppt) (‰)
Sensor A:None
Sensor B:None
Sensor C:None
Storage Conditions:-20 – 60 °C, max. 90% relative humidity (non-condensing)
TDS Measurement Range:0.00 mg/L – 50.0 g/L NaCl
TDS Resolution:0.01 mg/L – 0.1 g/L upon measuring range
Temperature Compensation:Automatic Temperature compensation for pH
Temperature Measurement:°C or °F
Temperature Resolution:0.1 °C
Type of measurement:Field Measurements
Warranty:36 months
Weight:570 g (Meter only)
What’s included?:HQ4300 Portable pH/ORP/EC/TDS/DO/ISE Multi-Meter, 3 channels, includes manuals, Li-Ion batteries, USB charger with cable for USA.