LDM Antifouling Module
The most powerful antifouling system for multiprobes — no gimmicks
LDM "Long-term Deployment Module"
The patented antifouling module from HydroTech (Patent No. 7,437,248). Compatible with all multiprobes from all manufacturers.
- No copper — no questionable chemicals
- Compatible with all existing multiprobes from all manufacturers
- Continuous deployment for 1–3 months in the worst conditions
- Guarantees stable and accurate measurements for all sensors
- Computer GUI for easy setup and maximum control flexibility
- Keeps sensors protected at all times during deployment
- SDI-12 ready; designed with all USGS needs in mind
- Can be used as an online underwater sampler
- Optional sediment filter at intake
- 100% waterproof underwater connector
| Spec | Value |
|---|---|
| Maximum Depth | 35 ft (10 m) standard LDM |
| Deployment Angle | Up to 20° from ground surface |
| Power | 12 VDC external |
| Communication | SDI-12, RS-232 |
| Materials | PVC, Polyurethane, 316 Stainless Steel |
| Compatible fluids | Fresh water, salt water |
| Datalogger compatibility | Sutron, Handar, and all SDI-12/RS-232 loggers |
LDM SDI-12 Timing Tool
LDM_SDI Timing Calculator
Calculate the precise time to send a measure command to the LDM when using SDI-12 dataloggers. Enter your valve, hold, and pump durations — the LDM command time is computed automatically.
Timing Parameters
Enter durations in hh:mm:ss · Row 8 calculates automatically
● Live Calc
#FunctionValue (hh:mm:ss)Abbr.
01
LDM Delay
🔒 Fixed
—
02
Sonde Delay
🔒 Fixed
Ts
03
Datalogger Delay
🔒 Fixed
Tm
04
LDM Valve ON Duration
Tv
05
LDM Hold Time Duration
Th
06
LDM Pump ON Time Duration
Tp
07
Send measure command to Sonde @
TY
08
Send measure command to LDM @
AUTO