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LAMOTTE BOTTOM SAMPLING DREDGE:
Stainless steel sampler designed for use on soft (sand or silt). A simple trigger
holds the sampler open while lowering to cover uniform area. Scissor design closes sampler,
retrieving volume of sediment to the surface. 3″ x 3″ x 7.5″ sampler. 5 lbs.
| #1097: |
LaMotte Bottom Sampler |
$292.00 |
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EKMAN BOTTOM DREDGE:
Use for obtaining samples from river, stream, or lake bottoms. Works best in soft, silty, vegetation-free
bottoms. Unique of sample chamber lid and jaw assembly release mechanism offers not only
positive action when activated, but also helps to reduce instability and frontal shock wave
effects when lowered rapidly. 6″ x 6″ x 6″ deep sample diameter. 316 stainless steel dredge
construction, plus stainless steel springs and cables. Enclosed rip release mechanism.
Use 11 oz. messenger. 10 lbs. Kit includes: grab, case, line and messenger.
Extension handle replaces messenger in shallow water.
| #196-B15: |
Ekman Bottom Grab |
$638.00 |
| #196-B12: |
Ekman Bottom Grab Kit |
$848.00 |
| #196-F30: |
5′ Ekman Extension Handle |
$396.00 |
| #SBK2: |
Replacement Messenger, Split |
$85.00 |
| #910-G22: |
Replacement Case |
$118.50 |
| #197-B15: |
Replacement Scoop Springs, Pkg/2 |
$52.50 |
| #196-F35: |
Replacement Cables, Pkg/2 |
$70.50 |
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PETITE PONAR GRAB:
Designed to take all types of benthos sediments on all varieties of bottoms, except those
of the hardest clay. When the jaws contact the bottom they obtain a good penetration with
very little sample disturbance. Can be used in both fresh and salt water. A unique closing
mechanism releases upon striking the lake or ocean floor. A "safety pin" prevents accidental
closing in handling or during transport. Top surfaces are covered with a stainless steel screen
to reduce shock waves and drift, and also help to prevent bottom sediments and organisms
from escaping. 6″ x 6″ (145 cubic inches). Stainless steel scoops are at 90 degrees. One of
the tapered jaws is equipped with an underlip for wiping free stones and gravel. Sideplates
prevent loss of sediments and organisms when jaws close. Weighs 25 lbs.
| #1728-G30: |
Ponar Grab, Petite |
$1450.00 |
| #1728-G32: |
Ponar Grab, Petite with Case |
$1550.00 |
| #1728-G40: |
Ponar Grab, Petite All 316 Stainless |
$1725.00 |
| #1728-G42: |
Ponar Grab, Petite All 316 Stainless w/ Case |
$1825.00 |
| #1728-G36: |
Replacement Screens, Set/2 |
$179.00 |
| #1728-L12: |
Replacement Locking Pin and Chain |
$95.00 |
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STANDARD PONAR GRAB:
Scoops are constructed of 316 stainless steel a
nd lever arms are zinc plated. For use in fresh water only (this sampler will rust if used in salt or brackish waters).
- Center pivot for low bottom disturbance
- Tapered scoop edges for a clean cut
- Heavy duty hinges for high impact work
- Hefty scoop volume: 8200 mL
- 316 SS scoops and underlip
- Removable stainless steel top screens
- Self-releasing pinch-pin™
Widely used in fresh water for taking samples of hard bottoms such as sand, gravel, consolidated marl or clay, this sturdy
dredge is a deliberately heavy device for biting deep into the bottom and has proven success at invertebrate recovery.
The simple design means it is simple to use. Heavy duty hinges and hinge pin can absorb thousands of bottom impacts.
Self-closing scoops have center pivot closing action. When the scoops strike the bottom, their tapered cutting edges
penetrate well with very little sample disturbance. An attached underlip wipes the scoop clean of pebbles and cobble
that would interfere with closing. By the same token, removable side plates prevent the lateral loss of sample as scoops close.
This well-regarded self-closing sampler uses our patented spring-loaded pinch-pin™ that releases when cable or line slackens.
A safety pin replaces the pinch-pin™ when not in use to prevent injury. Removable screens on top of each scoop allow water to flow through as it descends.
This lessens the frontal shock wave and reduces surface disturbance. Both screens are covered with neoprene rubber flaps that close during retrieval.
Choose all stainless steel for severe conditions. Ship wt: 67 lbs. Crane and winch recommended due to working weight.
Fasteners: 18-8 SS
Empty weight: 23 kg (50 lbs)
Full weight: 34kg (75 lbs)
Sample area: 229 x 229 mm (9" x 9")
Volume: 8.2 Liter
| #1725-F10: |
Standard Ponar Grab |
$2535.00 |
| #1725-K15: |
Replacement Screens, Pkg/2 |
$273.00 |
| #1726-G52: |
Extra Weights, Pkg/4, S.S. |
$386.00 |
| #1725-L12: |
Pinch-Pin™ with Chain and Pin |
$112.00 |
| #61-B14: |
Cable, 1/8" Diameter, SS, 100' |
$209.00 |
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STANDARD PONAR GRAB, ALL STAINLESS:
Choose this option for saltwater and freshwater applications. Scoops and lever arms are constructed of 316 stainless steel.
- Center pivot for low bottom disturbance
- Tapered scoop edges for a clean cut
- Heavy duty hinges for high impact work
- Hefty scoop volume: 8200 mL
- Removable stainless steel top screens
- Self-releasing pinch-pin™
Widely used in fresh and salt water for taking samples of hard bottoms such as sand, gravel, consolidated marl or clay, this sturdy dredge is a
deliberately heavy device for biting deep into the bottom and has proven success at invertebrate recovery. The simple design means it is
simple to use. Heavy duty hinges and hinge pin can absorb thousands of bottom impacts. Self-closing scoops have center pivot closing action.
When the scoops strike the bottom, their tapered cutting edges penetrate well with very little sample disturbance. An attached underlip wipes the scoop clean
of pebbles and cobble that would interfere with closing. By the same token, removable side plates prevent the lateral loss of sample as scoops close.
This well-regarded self-closing sampler uses our patented spring-loaded pinch-pin™ that releases when cable or line slackens. A safety pin replaces the pinch-pin™
when not in use to prevent injury. Removable screens on top of each scoop allow water to flow through as it descends. This lessens the frontal shock wave and reduces
surface disturbance. Both screens are covered with neoprene rubber flaps that close during retrieval. Choose all stainless steel for severe conditions.
Ship wt: 67 lbs. Crane and winch recommended due to working weight.
Materials: 316 stainless steel
Fasteners: 18-8 SS
Empty weight: 23 kg (50 lbs)
Full weight: 34kg (75 lbs)
Sample area: 229 x 229 mm (9" x 9")
Volume: 8.2 Liter
| #1725-F50: |
Standard Ponar Grab, al Stainless |
$2739.00 |
| #1725-K15: |
Replacement Screens, Pkg/2 |
$273.00 |
| #1726-G52: |
Extra Weights, Pkg/4, S.S. |
$386.00 |
| #1725-L12: |
Pinch-Pin™ with Chain and Pin |
$112.00 |
| #61-B14: |
Cable, 1/8" Diameter, SS, 100' |
$209.00 |
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MESSENGERS:
Stainless steel messengers are weights that slide down a line, strike a pad, and
cause a sampler to open or close. Split messengers can slip on or off the line (1/8″ to 1/4″) anywhere.
Solid messengers are threaded on the line at the end. Weight: 11 oz.
| #SBK2: |
Split Messenger |
$85.00 |
| #SBK3: |
Solid Messenger |
$71.50 |
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MARINE SCIENCE SAMPLING OUTFIT:
Includes: Stainless steel bottom sampling dredge (1097), plankton net (1063),
sounding lead and calibrated line (1064-G), armored thermometer (1600), water sampling
bottle (1054), Forel-Ule
color comparator kit (5907), and white secchi disk (1062). All components store in a single,
foam-lined 14″ x 12″ x 7″ hinged plastic carrying case for easy transport and convenient storage.
| #1069-01: |
Marine Science Sampling & Measurement Outfit |
$715.00 |
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SHALLOW WATER OUTFIT:
Designed for use where Secchi disk readings are not feasible. Dissolved oxygen, temperature, pH and turbidity
can be measured. Turbidity is measured by using a standardized turbidity reagent to match the turbidity of a water sample.
| Factor |
Method |
Range |
Sensitivity |
| Dissolved Oxygen |
DRT |
0-10 ppm |
0.1 ppm increments |
| Temperature |
Thermometer |
-5 to 45°C |
0.5°C increments |
| pH |
2 Octet Comparators |
pH 3.0 to 10.5 |
0.5 increments |
| Turbidity |
Drop Count |
0-200 JTU |
5 JTU increments |
| #5854-02: |
Shallow Water Testing Outfit |
$329.00 |
| #R-5854-01: |
Shallow Water Testing Outfit Refill |
$78.50 |
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TIDAL WATER OUTFIT:
Designed for use in tidal waters. Dissolved oxygen, temperature, pH, turbidity and salinity can
be measured.
Turbidity is measured by "Secchi Depth", using a 20 cm diameter, black and white secchi
disk and calibrated line. The kit includes a hydrometer and clear plastic hydrometer jar for
salinity measurement from 0 to 43 ppt.
| Factor |
Method |
Range |
Sensitivity |
| Dissolved Oxygen |
DRT |
0-10 ppm |
0.1 ppm increments |
| Temperature |
Thermometer |
-5 to 45°C |
0.5°C increments |
| pH |
2 Octet Comparators |
pH 3.0 to 10.5 |
0.5 increments |
| Secchi Depth |
Secchi Disk |
0-20 m |
0.5 m increments |
| Salinity |
Hydrometer |
1.0000 to 1.0700 SG
0.0 ppt to 43.6 ppt Salinity |
0.0005 increments
0.1 ppt increments |
| #5857-01: |
Tidal Water Testing Outfit |
$519.00 |
| #R-5857-01: |
Tidal Water Testing Outfit Refill |
$65.50 |
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WATERMARK WATER SAMPLER FIELD KIT:
Ideal for water sampling at any depth, zooplankton collections, and secchi disc transparency
measurements. Kit includes: clear polycarbonate 1.0 liter water sampler, 200g messenger,
20 cm limnological secchi disk; armored thermometer (liquid spirit filled, -5°C to +40°C in 0.5° increments);
student plankton net (20 cm diameter x 60 cm length x 153 m); three 20.0m nylon cords, line reels,
plastic carrying case, and instructions.
Available with horizontal or vertical water sampling bottle.
| #77907: |
Water Sampler Kit with Vertical Bottle |
$799.00 |
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LAMOTTE SECCHI DISKS:
Used to determine turbidity or degree of visibility in natural waters. The 20 cm (8″)
diameter discs come with 3/4 lb lead weights. Calibrated line is 20 meters in length.
Black and white or all white models
| #171: |
Black & White Disk w/o Line |
$42.00 |
| #171-CL: |
Black & White Disk w/ Line |
$85.00 |
| #1062: |
All White Disk w/o Line |
Discontinued |
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WILDCO SECCHI DISK:
Need to determine how clear the water is? Seeing may not be believing! Measure the turbidity or degree of visibility of the water you're testing with our secchi disk.
Specifications:
- 200 mm (7-7/8") diameter acrylic with stainless steel bolt
- Two white, two black quadrants
- Weights and instructions included
- Line not included.
| #58-B10: |
Wildco Black & White Secchi Disk |
$87.00 |
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LARGE OCEANOGRAPHIC SECCHI DISK:
Constructed of white high density polyethylene, this 51 cm (20″) diameter disk comes with stainless steel hardware,
built-in 5 lb. lead sounding weight, 20.0m nylon cord, and reel.
| #77915: |
Oceanographic Secchi Disk |
$249.00 |
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BRAIDED LINE & WEIGHT:
This 20 meter, braided, stretch-resistant line has a brass spring clip for easy attachment to samplers, secchi discs,
plankton nets or sounding leads. The line wraps conveniently around an ethafoam block which prevents accidental loss.
| #1065: |
20 Meter Calibrated Line |
$62.00 |
| #1064-G: |
20 Meter Line with Weight |
$83.00 |
| #1068: |
Sounding Weight Only |
$39.00 |
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HESTER-DENDY MULTIPLE PLATE SUBSTRATE SAMPLER:
The round Hester-Dendy are used for substrate sampling of micro-invertebrate organisms
found in bottoms of rivers, streams, lakes, etc. The sampler contains
14 water resistant tempered masonite plates that are smooth on both sides.
The plates are 75 mm diameter and are separated by 8 single spacers,
1 double spacer , 2 triple spacers and 2 quadruple spacers. Weighs 2 lbs
| #77266: |
Hester-Dendy Sampler |
$45.50 |
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WASH BUCKET:
For Littoral Samples. Made of extra heavy-duty plastic with molded pouring spout and heavy chromed handle.
Bottom is stainless wire cloth 595 micron (#30 mesh) reinforced with a stainless steel plate with 1/2" drainage holes.
Sturdy stainless ring helps maintain circular shape. 12" dia. x 8" deep. Three-gallon (12-liter) capacity..
| #WB2: |
Wash Bucket |
$158.00 |
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AQUAVUE UNDERWATER VIEWER:
Fieldmaster Aquavue Underwater Viewer
This viewer is perfect for groups studying aquatic plant and animal life. Look down the 26" tube - you will encounter no surface glare or internal reflection.
The Aquavue may also be used with a Secchi disk. The design results in more accurate turbidity readings - you eliminate the errors that could crop up
depending upon weather factors, different observers, different angles or different times of day. This apparatus is constructed of crush-resistant tubing
and features a black interior, flotation collar, neoprene viewing mask and easy-to-use handle.
| #77424: |
Aquavue Underwater Viewer |
$99.00 |
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GENERAL OCEANICS MECHANICAL FLOW METER:
These compact, mechanical flow meters are designed for measuring flow in lakes, rivers, canals,
estuaries, sewage outfalls, and offshore applications. They are ideal for determining water speed,
volume, or distance. These general-purpose flow meters incorporate a precision-molded rotor
coupled directly to a six-digit counter that registers each revolution of the rotor and displays it
similar to an odometer (up to 999,999 equal to approximately 14.5 nautical miles). The counter
is located within the body of the instrument and is displayed through the clear plastic housing.
Flow meters are properly balanced so they maintain a horizontal position when suspended by a
towing line. After completing each sampling, simply remove the meter and record the reading and
time. By subtracting the first reading from the second, the average speed over a given sampling
time can be calculated. Each flow meter measures 8-3/8″ long, 1-9/16″ in diameter and includes
18″ of tow line and a stainless steel connecting axle pin. High-speed impeller measures from
10 cm/sec. to 790 cm/sec. and Low-speed from 6 to 100 cm/sec.
Optional Wading Rod for the G.O. Flow Meter. This telescoping pole extends from 3′ to 9′ and has a stainless steel
swivel fitting. Ideal for measuring flow in hard to reach places.
| #203001: |
High Speed Flow Meter |
$725.00 |
| #203002: |
Low Speed Flow Meter |
$749.00 |
| #203007: |
Wading Rod |
$219.00 |
| #203021: |
Replacement High Speed Rotor (Small) |
$79.00 |
| #203026: |
Replacement Low Speed Rotor (Large) |
$119.00 |
| #2030-006: |
Replacement Nose Cone |
$102.00 |
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