$25 - $50

09035-52 Reversible 7-Point Horizontal Temperature Label Black/Red, 60-90C/140-194F; 10/Pk by Digi-Sense

These self-adhesive reusable temperature labels provide a safe, accurate, easy-to-read means for monitoring temperatures. Indicating strips use liquid crystal technology to display the current temperature at an economical cost. The strip will turns a green color when ambient temperature is reached. Shelf life: 1 year after date of purchase.

• Non-toxic / non-hazardous temperature measuring alternative
• Easy to read and unbreakable

*Please note we can only ship RKI products to customers within the United States

94055 Dew Heater Ring - 5" by Celestron

The Celestron Dew Heater Ring is the ideal dew prevention solution for your Celestron telescope. This must-have accessory will improve your observing or imaging nights year-round. The Dew Heater Ring permanently mounts to your 5" Celestron Schmidt-Cassegrain optical tube, replacing your retaining ring, so you'll never be caught without it. The installation process is quick and easy (follow the manual for instructions).

How it works

The Dew Heater Ring replaces the plastic retaining ring on your Schmidt corrector lens for efficient heating across the lens. The ring is constructed of lightweight, durable aluminum. Its rigid frame supports the cable circuity and the telescope's Schmidt corrector lens. Unlike other heating bands or strips that inefficiently heat the lens cell to warm the glass, the Celestron Dew Heater Ring heats the corrector glass directly, providing the most efficient transfer of heat to prevent dew formation.

Simply plug the ring into an external 12V DC power source for consistent, continuous heat that will prevent dew from forming even under heavy dew conditions. The Dew Heater Ring features two storage clips to keep the power and thermistor jacks secure when not in use while accommodating the telescope's dust cover.

The Dew Heater Ring also comes with a cable management clip that connects to the telescope's front cell. Corral the power and thermistor jack to prevent them from dangling and reduce unwanted pulls on the cable connection to the rings.

The Dew Heater Ring comes complete with:

• Dew Heater Ring
• Cable management clip
• Power jack extension cable
• Paper installation shield

Enhance your setup

To achieve the highest level of dew prevention while maximizing power efficiency, we strongly recommend pairing the Dew Heater Ring with a Smart DewHeater Controller (sold separately). The controller uses the ring's built-in thermistor and its internal environmental sensor to provide just the right amount of heat to the corrector to prevent dew based upon the ambient temperature, ambient humidity, and temperature of the Schmidt corrector, which can dramatically reduce the ring's power draw, greatly increasing battery life. The ring also includes an extension cable for connecting the ring directly to one of the controllers' heater output ports, or to a third-party controller's heater output port. (Note: the ring's integrated thermistor is only compatible with the Celestron Smart DewHeater Controllers).

We also recommend adding a dew shield to your setup. While not mandatory, a shield will cut down on the amount of power the Dew Heater Ring needs to keep the optics clear.

• Heater ring provides the most efficient heating directly to the corrector lens to prevent the formation of dew
• Permanently mounts to your existing telescope tube for a seamless look–plus, you'll never forget to bring it with you
• Integrated thermistor continuously monitors the temperature of the corrector lens when used with the Celestron Smart DewHeater Controllers.
• Rigid, lightweight, and durable aluminum construction
• Included storage clip and cable management clip keep your cables organized

SA1625-Q Sulfuric Acid, 1.0N, 1L by AquaPhoenix

• Traceable to NIST
• Sulfuric Acid/UN2796

Specifications

• Concentration: 1.0N
• Packaging Type: Poly
• Size: 1.00 L

TH310 Stick Thermometer with stainless steel probe and Calibration Check feature by Milwaukee

Thousands of people have relied on the Milwaukee TH310 compact Digital Temperature Meter to read temperature in all types of applications. The durable, digital readout is fast and accuracte and best of all is environmentally friendly with NO mercury, NO glass. From fish tanks to breweries, wineries and labs the TH310 Stainless Steel Stick probe is your quick temperature meter.

SUMMARY

The Milwaukee TH310 compact digital thermometer is specifically designed to help professionals and home owners regulate their home brew, wine process, classroom experminents or labs duties. Keeping the proper temperature improves results of beer and wine output. It also helps in understanding the quality of lab data. Keep temperature in your target range for better results.

WHAT PEOPLE ARE SAYING

"Accurate results and calibrated right out of the box."
"Must have for any aquarium owner."
"Good value. Easy to use. Consistent."
"No dangerous chemicals"
"Used it in the field for checking the fruit to harvest, was great"

DESIGN FEATURES

• Fast, accurate results with large digital LCD readout.
• Extended temperature range: -50 to 150°C (-58 to 302°F).
• Cal-Check feature.
• Fast NTC sensor response.
• Easy measurement: just place the stainless steel probe in the sample and wait for the reading to stabilize.
• Easy sharp Stainless Steel temperature shaft for quick penetration.
• Stainless Steel probe for easy cleaning.
• Long battery life, approx. 3000 hours of continuous use (batteries included).
• High accurate digital readings.

Clean and Safety

Here are our top four tips.
1. Always clean you stainless steel probe after use.
2. Pay close attention to the direction of the probe's sharp tip.
3. If the LCD begins to fade, change your batteries.
4. To avoid electrical shock avoid contact with surfaces of 24 VAC or 60 VDC.

TT71V Class 7.1 TDG Label (Vinyl) by GHS Safety

Shipping Labels are essential for packages that contain dangerous goods. GHS labels are available in two materials. Paper for indoor applications and in vinyl for extended outdoor usage using a fade resistant ink. These labels meet the UN Recommendations on the Transport of Dangerous Goods.

Available in 500/roll formats.

WD-00655-34 Traceable® One-Shot™ Buffer Solution, Clear, pH 10.012; 6 x 100 mL Vials by Oakton

• Convenient, single-use vials eliminate concerns of cross-contamination; each pack contains six polyethylene vials with 100-mL of pH buffer per vial
• If unopened, shelf life is 2 years; once opened, use pH 4 and pH 7 within 90 days, pH 10 within 30 days

Oakton® Traceable® One-Shot™ pH Buffer Solutions are supplied with NIST-traceable calibration reports stating accuracy at 25°C to ±0.010 pH, in addition to conversion values for pH/temperature - for the most accurate calibrations!

METHODS SUPPORTED

Certified reference material meets test requirements for Federal, State, and local agencies, CAP, ASTM, NCCLS, CLSI, ACS, CLIA, AOAC, EPA, APHA, AWWA, WEF, USGS, USP, and ISO. Traceable® Conductivity Standards complies with and is essential for use in these official methods: AOAC 973.40, EPA 120.1, Standard Method 2510 (APHA, AWWA, WEF), ISO 7888, DIN 38404, ASTM D1125, USGS I-1780, USP 645, and for A2LA/NVLAP accreditations/ISO 9000 certifications. Material may be used to calibrate all conductivity meters and to determine all conductivity cell constants.

A2LA ACCREDITATION ISO/IEC 17025:2005 (1750.01)

To assure accuracy an individually serial-numbered Traceable® Certificate is supplied to indicate traceability to standards provided by NIST (National Institute of Standards and Technology) and/or a National Standards Laboratory. A2LA accredited certification provides the highest achievable level of quality assurance, documentation, and accuracy. Conductivity Standards are produced in an A2LA accredited ISO/IEC 17025:2005 (1750.01) calibration laboratory. Additional certifications include ISO 31 (certificate content) and ISO 35 (statistical analysis), plus ISO 9001 (certified quality manufacturer).

• All Oakton® Traceable® pH buffer solutions are NIST-traceable reference materials
• Supplied with a calibration report from an ISO 17034 and ISO 17025 accredited laboratory
• Individually packed in foil pouch to prevent UV exposure that may degrade accuracy
• Buffer solution lets you calibrate pH instruments to ensure accuracy
• If unopened, shelf life is 2 years
• Use to calibrate pH instruments to 10.012

INCLUDES

individual temperature compensation chart and NIST-Traceable calibration certificate with data

*Please note we can only ship RKI products to customers within the United States

GL3510-C Glycine Solution, 10% w/v, 120mL by AquaPhoenix

Specifications

• Packaging Type: Poly
• Size: 120 mL
• Concentration: 10% w/v

18528-04 Spade Lugs, Constantan, for Type J, T, and E Thermocouples; 10/pk by Digi-Sense

• Maintain accuracy by choosing spade lugs that match the composition of your thermocouple wires
• Available in the most common reference materials
• Avoid confusion - each connector has the material abbreviation stamped into it
• Sold in packs of ten