Lindorm, Inc.
Lindorm, Inc.
"Sedimeter sensors designed and
built by Lindorm are a fantastic
tool for measuring water column
turbidity and siltation." (Gravity)
The SediMeter™ Generations

Prototype (1986) Original (1994) Model SM2A (2008) Model SM3A (2013)
Active sensor length 152 mm 144 mm/288 mm 350 mm 350 mm
Detectors per sensor 16 16/32 36 36
Detector spacing 10.16 mm 9.0 mm 10.0 mm 10.0 mm
Dimensions (excl. holder) ca 900 mm x 140 mm 950 mm x 141 mm 700 mm x 51 mm 700 mm x 15 mm
Mass (excl. holder) ca 1.5 kg 3 kg 0.5 kg 0.14 kg
Memory 2 kB 64 kB 2 MB built-in
+ MMC/SD card up to 2 GB
4 MB built-in
Storage capacity, samples <100 920 4096 internally
battery limited on memory card
8192, increased
to 16384
Data retrieval Removable RAM chip RS232 USB, RS-485, MMC/SD card RS-485
Real-time measurement N/A RS-232, 9600 baud RS-485, 9600 baud RS-485, 9600 and 115200 baud
Battery type Custom 9 V Li Custom 9 V Li Standard AA 3.6 V Li Built-in Li rechargeable
Other sensors Current velocity Temperature
Current velocity
Current direction
Ambient light
User interface N/A N/A Display and control stick Status LEDs
Technology Hole mounted Hole mounted Surface mounted Surface mounted
Cleaner N/A N/A Option Separate model (SM3B)
Note This comparison lists both standard and optional features without distinction.
Oldest SediMeter Old SediMeter SM2A SM3A

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