OTC's No. 4619 Professional Battery Hydrometer displays a batteries specific gravity (density) on an easy-to-read float with a scale ranging from 1.100 to 1.300. Hydrometers are used to test the state of charge of a battery cell. This is performed by measuring the density of the electrolyte, which i...

Weather the day with confidence with your own accurate and up-to-date information, right from your own backyard. This monitor features precise, reliable temperature and humidity readings. The bold, easy to read LCD screen displays the current indoor/outdoor temperature and humidity with a temperatur...

Ensuring proper indoor humidity has important skin, allergen and other health benefits by inhibiting the growth of mold, bacteria, viruses, fungi, mites and other asthma inducing agents. The AcuRite Digital Temperature & Humidity Monitor allows you to check comfort conditions at a glance with this i...

DROK Car Thermometer Inside & Voltage MonitorParameters: Input voltage: 12V/ 24V Power mode: cigarette lighter power Display color: Red+Blue Functions: 1.Auto battery voltage monitor Firstly, plug the gauge into car cigarette lighter socket and its screen will display voltage of auto battery...

Lithium 3.0 volt batteries are designed for use in watches, calculators, PDAs, electronic organizers, keyless entry devices, and medical devices such as digital thermometers and glucose monitors.

The Cat and company travel by hot air balloon up and into various weather phenomena including rain, snow, thunder, tornadoes, and (yikes!) even hurricanes! Along the way they learn about thermometers, anemometers, wind vanes, cloud formations, humidity, fog, smog, weather folklore, and how to stay s...

The thermometer has an easy to read LCD display and is small and compact for discrete use. Attach the display unit to the outside of the tank using the suction cups and submerge the probe into the water in the tank. The thermometer is accurate enough to create readings within 0.1 degree. Makes carin...

The Fluke 561 infrared thermometer is easy to use: just aim, pull the trigger, and read the display. The large backlit display shows the temperature readings in °F or °C, and has a low-battery indicator. The thermometer has a unique emissivity selector, which allows you to select from three preset s...

Energizer CR1632 Button Cell Lithium Watch battery. Energizer is a worldwide leader in small electronics batteries. Energizer offers a full line of Watch Electronic Specialty Batteries for applications used in precision engineering tools to power a wide variety of small electronic devices. Everigzer...

Let it rain! Let it blow! Let it snow! Explore the science behind weather using this interactive station to track wind, rain, and temperature and put your weatherman to the test! Read all about it! Did you know that the highest temperature ever recorded on Earth was 136°? Read all about the extremes...

This accuon ultra slim travel alarm clock with calendar and temperature ideal for travel due to its compact size when folded and it can be flipped and rotated 180 degree to each side to sit on your desktop as well. It features an alarm clock with 12/24 hour setting a snooze button and a screen back-...

This kit includes everything you need to keep swimming pool clean. Maintenance is made easy with this kit that comes with: triangular weighted vacuum head with handle, 18-Inches wall brush, dual test kit with case and instruction for pH and chlorine checks, a skimmer and a scoop thermometer. Include...