Transparency / Turbidity Tube ( Code:TT ) Just as a Secchi disk is used as a measure of lake quality, a transparency tube can be used to estimate stream quality as it relates to solids in the water. Similar tools are called, Australian turbidity tube, or sediment stick. Citizen groups, schools and local governments can use transparency tube readings as a relative measure of stream quality. The 1 ¾ inch, clear polycarbonate tube is marked with an easy to read black numbers on a white tape in centimeters. Two lengths are available: 60 cm. and 120 cm. A drain tube with a crimp are supplied so the sample can be drained off until the "Secchi" pattern on the bottom just appears. The height of the water column is then recorded. Quantity discounts are available. Made with Secure StopperTM. Made in the USA. 60 cm Price: US $38.50.
120 cm Transparency / Turbidity Tube ( Code:TTG) Polycarbonate 1.2m/120cm Transparency Tube - GLOBE® -compliant. (Click here to go to the GLOBE® Program®'s protocols page.) Made with Secure StopperTM. Made in the USA. Quantity discounts are available. Price: US $52.95.
Transparency / Turbidity Tube Replacement Stopper ( Code:TTRS ) A replacement stopper for the end of the turbidity tube with Secchi pattern. Price: US $18.95.
More info on the turbidity tube (measuring transparency and instructional resources)
Secchi-Tube (Code ST-60) or (ST-120) The Secchi-Tube is designed to function like the traditional Secchi disk that is used in lake monitoring. A weighted Secchi disk is lowered into the tube by a line, allowing the user to raise and lower the Secchi disk within the same water sample numerous times. This method allows for averaging the water transparency readings. At the top of the Secchi-Tube is a hole that drains excess water off to bring the water sample level down to the "zero" mark on the centimeter scale. The Secchi-Tube is made of polycarbonate with an easy-to-read centimeter tape. Features the Secure StopperTM and all stainless steel hardware. 60 cm Price: US $38.50. 120 cm Price: US $52.95.
More info on the Secchi tube (measuring transparency and instructional resources)
What's the Difference Between the Turbidity and Secchi Tubes?
If your protocols requires multiple readings on the same sample the Secchi tube allows a person to do so without having to re-pour the sample into the tube. The Turbidity tube requires catching the sample in a bucket and then pouring the sample back into the tube. The Secchi-tube does not allow unsuspended material to settle on the disk as readily as the turbidity tube does with its stationary black and white disk.
2020 Turbidity Meter Kit ( Code:TMK ) Portable turbidity water meter complies with US EPA 180.1 STANDARDS. Compliant with State of Washington standards. Kit supplied with 0, 1 and 10 NTU standards, sample bottle, 4 sample tubes and extra battery. ULTRA RUGGED WATERPROOF CARRYING CASE. Price: US $865.00 More details
Wide Range pH The test strips measure a range of pH4 through pH10 in full increments; 50 tests per vial. Price: US $8.50 per vial.
Sample Bottles 250ml amber sample bottles. Price: US$6.50 each
Nitrile Gloves Textured industrial ambidextrous gloves, powdered, Latex Free, 100 gloves per box. Price: US $14.99 per box.
Digital Thermometer This digital thermometer meets the demands of field researchers from students to professional. The key features are self-calibration, NSF certified, submersible, dual scale (C&F), and rapid response. Other features include stainless steel body and 5 inch probe with a protective sleeve, data hold function, auto off after 10 minutes, temperature range 40/450 F or -40/232 C, size 1.4 inch dial over all length 6 inches. Price: US $26.00 each.
Rite in the Rain The paper in these log books was created specifically for writing field notes in all (high humidity to downpours) weather conditions. Four common books available (others upon request):
#390-4F: Pocket size bound Journal, has 160 pages (80 sheets), and a perfect fit for the back pocked at 4¼" x 6¾" Price: US$14.95 ea.
#390-N: Numbered page bound book, has 160 consecutively numbered pages (80 sheets), measuring 4¾" x 7½". These books meet E.P.A. field book requirements for legal defensibility. Price: US$17.95 ea.
# 374: Field-flex standard, has 128 pages (64 sheets), Great for traveling with you anywhere, this mid-sized bound book (4 5/8" x 7¼" ) has a heavier paper (32#). Price: US$9.95 ea.
#374-M: Field-flex pocket #374-M, has 112 pages (56sheets) of 20# paper, with an overall size of 3½" x 5". Price: US$3.45 ea.