Extech ExStik pH Meter
- Display indicates when the reading is stabilized
- Memory records and recalls 15 readings
- Analog bargraph displayed on LCD
The Extech ExStick pH Meter provides fast and easy on-the-spot pH measurements. The flat surface electrode conducts measurements in liquids, semi-solids, and solids.
The Extech ExStik pH Meter simultaneously displays pH and temperature, as well as an analog bargraph for sample trends. The memory records and recalls 15 sequentially tagged readings allowing the detection of changes over time. The display indicates once the reading has stabilized. The CAL alert tells users when it is time to recalibrate, and the RENEW indicator when it is time to replace the electrode. The meter takes a 1, 2, or 3-point calibration that automatically recognizes buffer solutions. Additional meter functions include data hold, automatic power off, and low battery indication.
- pH range: 0 to 14pH
- pH resolution: 0.01pH
- pH accuracy: ±0.01pH
- Temperature range: 23 to 194°F (-5 to 90°C)
- Temperature resolution: 0.1°
- Temperature accuracy: /±1°C
- Measurement storage: 15 tagged (numbered) readings
- Display: multifunction LCD with bargraph
- Dimensions: 1.4 x 6.8 x 1.6" (35.6 x 172.7 x 40.6mm)
- Weight: 3.8oz (110g)
- Warranty: 1 year (meter)
- (1) ExStick meter
- (1) Flat surface pH electrode
- (1) Protective sensor cap
- (1) Sample cup with cap
- (4) 3V CR2032 button batteries
- (1) 48" (1.2m) neckstrap
In The News
Ocean acidification: University of Washington's giant plastic bags help control research conditions
With oceans becoming more acidic worldwide, scientists are getting creative in designing experiments to study them. For example, one group at the University of Washington is using giant plastic bags to study ocean acidification.
Each bag holds about 3,000 liters of seawater and sits in a cylinder-like cage for stability. The group at UW, made up of professors and students, is controlling carbon dioxide levels in the bags over a nearly three-week period, during which they are looking at the effects of increased acidity on organisms living near the San Juan Islands.
“These mesocosms are a way to do a traditional experiment you might do in a lab or classroom,” said Jim Murray, professor of oceanography at the University of Washington.Read More
National Oceanic and Atmospheric Administration scientists detected signs of ocean acidification in the waters that hold the vulnerable and valuable fisheries of the North Pacific off the coast of Alaska, but they only had a snapshot of the action.
“We know that in this place were important commercial and subsistence fisheries that could be at risk from ocean acidification,” said Jeremy Mathis, a NOAA Pacific Marine Environmental Laboratory researcher and professor at the University of Alaska Fairbanks.
To understand how ocean acidification affects the North Pacific, NOAA scientists created a mooring network that collects constant in situ data on parameters contributing to acidification. They hope it will reveal seasonal trends and patterns left out by their snapshots.Read More
The value of multi-lake studies is well understood by international organizations like the Global Lake Ecological Observatory Network (GLEON) and the scientists who work tirelessly to provide data to the larger network. Rebecca North, an associate professor at the University of Missouri-Columbia , is one of many researchers involved in multi-lake research initiatives and conducting research locally in her home state.
Having been born and raised on the shore of Lake Ontario, North grew up in a community that revolved around water. She also saw firsthand one of the worst water quality bodies of the world, the Bay of Quinte, decline throughout her lifetime.Read More