Length w/batteries
17.96” (45.6 cm)
Length w/o batteries
14.16” (36.0 cm)
Cableless
0.25” (0.6 cm) shorter
Body Material
Acetal & 316 stainless steel or titanium
Wire Seal Material
Fluoropolymer and PTFE
Submersible Cable
Polyurethane, polyethylene, or FEP
Protection Rating
IP68, NEMA 6P
Desiccant
1-3 mm indicating silica gel (high or standard capacity)
Terminating Connector
Available
Communication
RS485 Modbus® RTU
SDI-12 (ver.1.3)
Direct Modbus Read Output
32-bit IEEE floating point
Millivolt Channels
No. Available Channels
Range
Accuracy
Resolution
2mV, 1 temp
± 1200mV
0.1% value
0.1mV
Reference
Electrode
Junction
Electrolyte
Ag/AgCl solid-state electrode
Patented capillary liquid junction
TempHionTM reference solution
Operating Temp. Range
-15°C to 55°C
Storage Temp. Range1
-40°C to 80°C
Maximum Depth
700ft (210m) / 300 PSI
Memory
4MB – 400,000 records
Log Types
Variable, user-defined, logarithmic, profiled
Programmable Baud Rate (optional)
9600, 19200, 38400
Logging Rate
2x/sec maximum
Software
Complimentary Aqua4Plus or Aqua4Push
Networking
32 available addresses per junction w/ batching capabilities (up to 255)
File Formats
.xls / .csv / .a4d
Internal Battery
2×1.5V AA alkaline2
Auxiliary Power
12 VDC – Nominal
6-15VDC – Range
Exp. Alkaline Battery Life
18 months at 15m polling interval3
Element Type
30K ohm thermistor
Element Material
Epoxy bead/external housing
Units
Celsius, Fahrenheit, Kelvin
Sensor Type/Material
pH / ORP
Glass combination electrode
Platinum ring
Ranges
pH / ORP
0-14 pH units / -538mV to 260mV
± 1200mV
Typical Accuracy
pH / ORP
± 0.2 pH units
0.1 mVH
Resolution
pH / ORP
0.01 pH units
0.01 mVH units
Compensated Range
0°C to 40°C
Calibration
pH / ORP
One or two point calibration w/ pH buffers (7 & 4 or 10)
EH 1 pt. calibration
Reference Solution
Potassium Nitrate – (KNO3)
1. Storage without batteries
2. Lithium available upon request
3. May vary due to environmental factors