Extech 42275 Temperature & Humidity Datalogger Kit
The Extech Datalogger Kit is a compact system that easily records temperature and relative humidity.
Features
- Records up to 16,000 readings
- Logs data for days, weeks or months
- Multiple dataloggers can be programmed and data downloaded from one single docking station
- Free ground shipping
- Expedited repair and warranty service
- Lifetime technical support
- More
The Extech Temperature & Humidity Datalogger Kit is a compact system that that logs data for days, weeks, or months.The meter collects humidity readings from 0 to 100% RH and temperature from -40 to 185 ̊F (-40 to 85 ̊C). It can log up to 16,000 readings (8,000 each temperature & humidity) all in a waterproof housing. Multiple dataloggers can be programmed and data downloaded from one single docking station.The dock easily connects to a PC via the included RS-232 cable (or optional USB cable) and data can be further analyzed with the included Windows compatible software.
Programable sampling rates can be set from 1 second to 2 hours and high/low limits with alarm indication. The logger can be programmed and data stored and analyzed using the software. Three start methods are conviniently available: scheduled, immediate, or magnetic. The real time clock stores date and time with the data.
- Temperature range: -40°F to 185°F, 40°C to 85°C
- Temprature resolution: 0.1°
- Basic accuracy: ±1°F(-4 to 122°F), ±2°F (-40 to -4°F, 122 to 185°F), ±0.6°C (-20 to 50°C), ±1.2°C (-40 to 20°C, 51 to 85°C)
- Humidity range: 0 to 100%RH
- Humidity resolution: 0.1%
- Humidity basic accuracy: ±3%RH
- Datalogging interval: 1 second to 2 hours
- Memory: temperature, 8000 points; relative humidity, 8000 points
- Dimensions: 4.9 x 3.8 x 2" (123.8 x 95.3 x 51mm)
- Weight: 9oz (254g)
- (1) Datalogger
- (1) RS-232 docking station & cable
- (1) Windows compatible software
In The News
Stone Lab: Cyanobacteria Monitoring in Ohio Lakes
Microcystin, one of several toxins produced by the cyanobacteria that form harmful algal blooms (HABs), has become a popular topic of lake research as the human health impacts of HABs become better understood. Stone Lab is one of the leading groups in algal bloom research on Lake Erie and other lakes in Ohio. 
 
For more than 100 years, Stone Lab has conducted biology research and provided science education and outreach to the region. Over the years, thousands of individuals of varying ages have learned from the resources Stone Lab provides. 
 
Stone Lab’s Research Coordinator and Senior Researcher, Justin Chaffin, learned of Stone Lab while an undergraduate student at Bowling Green State University Fireland Campus.
Read MoreFrom Assessment to Angler: Continual Research Ensures Lake Erie Remains a Beacon of Freshwater Fishing
Lake Erie is well known for its abundant recreational fishing. Anglers come from across the country to try their luck at the “walleye capital of the world” and search for other freshwater species, such as bass, perch, and steelhead trout. 
 
 As one of the world’s largest freshwater fisheries, much effort is made behind the scenes to maintain fishing opportunities for visitors to enjoy year after year, efforts that often go unnoticed by the public. 
 
 One of the lake's most important economic and tourism centers is the city of Sandusky, home to the Sandusky Fisheries Research Station . As part of the Ohio Division of Wildlife, the unit serves as a base for assessing fish populations and managing harvest with partner agencies from around Lake Erie.
Read MoreHigh Definition Stream Surveys: Informed Management in Local Waterways
When it comes to environmental monitoring, new stream survey methodologies have revealed a great deal about water quality and streambed conditions over time. Such information can be particularly important in leading restoration initiatives and prioritizing management decisions. 
 
Historically, stream surveys have been conducted at a single point along the stream, with data then extrapolated for miles up and downstream. However, Brett Connell, Hydrologist and Director of Sales at Trutta Environmental Solutions, started developing a more intensive stream survey format in his master's program in 2010 at the University of Tennessee.
Read More