$75 - $100

93421 X-Cel LX 5mm Eyepiece by Celestron

Celestron X-Cel LX series eyepieces offer a 60° apparent field of view, perfect for the Moon, the planets, and a plethora of deep-sky objects. The premium six-element optical set is finished with multiple layers of high-transmission coatings for clear, sharp images. The edges of the optics are blackened for increased contrast. All seven X-Cel LX eyepieces sport 16 mm of comfortable eye relief, and are parfocal, which means you can switch out eyepieces within the series during observing sessions and little or no additional focusing will be required.

The X-Cel LX eyepiece body is made of black-anodized aluminum. The pop-up eyecups make it easy to adjust the height for different users. Turn them in one direction to extend the length, and the other direction to provide a flat surface, preferable to most eyeglass wearers. A treaded rubber grip around the center of the eyepiece barrel offers secure handling, even in moist conditions or with heavy gloves on. The 1.25" insert barrel is threaded to accept filters.

• X-Cel LX eyepieces, optimized for planetary viewing, offer a 60° field of view through a six-element fully multi-coated lens system.
• Pop-up rubber eyeguards provide comfort and increase contrast. Raise and lower with a simple twist.
• A treaded rubber grip offers a no-slip grip, even with gloves on.
• 1.25" barrels are threaded to accept filters.
• The Celestron X-Cel LX Series includes the following focal lengths in a 1.25" format: 2.3 mm, 7 mm, 9 mm, 12 mm, 18 mm, 25 mm

K-6210 Iron (Ferrous & Total) CHEMets® Test Kit by AquaPhoenix

18525-13 Type J Spring Loaded Ind Thermocouple Probe Probe 6" L, 12" Ext .250 Dia, Ung Jct by Digi-Sense

These probes cannot be inserted directly into a medium. Spring loaded industrials are not sealed where the threads meet the probe. They must be inserted into a thermowell or other sealed vessel.

The temperature range is for the probe tip only. The handle material may be affected if the probe is rated higher than the handle depending on exposure time, application, and handle material. ABS handles are rated to 220°F (104°C); PVC handles are rated to 200°F (93°C); Stainless Steel handles are rated at 450°F (232°C); Mini Connectors are rated to 392°F (200°C)

• The probes can be installed with current housing without having to purchase a whole new industrial assembly
• Response Time: 3.75 seconds or greater
• Each probe comes with ½" NPT insertion threads
• Probes are spring loaded which allows the probe to be bottomed out into a thermowell
• Probes are welded and sealed which allows for direct insertion into a vessel
• Custom designs or changes to this product are available upon request
• Each probe comes with a color coded ANSI stripped leads: type J-red/white, type K-red/yellow, type T-red/blue

2447500 Digital Titrator Reagent Set: Hardness, Calcium 100-4000mg/L by AquaPhoenix

Reagent set for the determination of Calcium Hardness by EDTA Digital Titrator Titration Method (Hach method 8204). Range: 100-4000 mg/L as CaCO3. Set contains CalVer® 2 Calcium Indicator Powder Pillows, Potassium Hydroxide Solution (8 N) and 0.800 M (EDTA) Digital Titrator Cartridge for approximately 40-100 tests.

• Accurate results - when and where you need them
• Fast and Flexible
• Versatile
• Economical

Part Number: H197110PN

2448100 Digital Titrator Reagent Set: Hardness, Total 100-4000mg/L by AquaPhoenix

Reagent set for the determination of Total Hardness by EDTA Digital Titrator titration (Hach method 8213). Range: 100-4,000 mg/L as CaCO3. Set contains: Buffer Solution (Hardness 1), ManVer® 2 Hardness Indicator Powder Pillows and 0.800 M EDTA Digital Titrator Cartridge for 40 - 100 tests.

• Accurate results - when and where you need them
• Fast and Flexible
• Versatile
• Economical

18520-02 Type T Thermocouple Probe Quick Dis-connector, Dual with Std-Connector, 6" L, .250 Dia, Grounded Junction by Digi-Sense

The temperature range is for the probe tip only. The handle material may be affected if the probe is rated higher than the handle depending on exposure time, application, and handle material. ABS handles are rated to 220°F (104°C); PVC handles are rated to 200°F (93°C); Stainless Steel handles are rated at 450°F (232°C); Mini Connectors are rated to 392°F (200°C)

• Ideal for continuous monitoring
• Designed with 316 stainless steel sheath
• Response Time: 1.2 - 5 seconds or greater
• Includes a stand alone female connector for instalation to a thermocouple extension cable
• Each probe comes with a color coded ANSI dual standard connector: type J-black, type K-yellow, type T-blue, and type E-purple.
• Custom designs or changes to this product are available upon request

2141299 Tolytriazole Reagent Set 100/pk by AquaPhoenix

For the determination of benzotriazole (1-16 mg/L) or tolyltriazole (1-20 mg/L) by the UV Photolysis method. Hach method 8079. Requires the use of a UV Lamp (Cat. No. 2082800 or 2082802). Pack of 100 powder pillows.

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

LabSen 335 POM-body pH/Temp. Electrode for Wastewater Treatment by Apera

Crafted with proprietary sensor technologies and premium materials from Switzerland, LabSen 335 pH/temp. Electrode is designed for high-precision pH measurement of wastewater, suspensions, emulsions, slurries, and other dirty liquids. It also works well for general water solutions.

• The combination of open junction and polymer electrolyte eliminates the common issue of junction clogging in dirty liquid testing, ensuring consistent and precise results
• Long-life reference system for stable reference potential and long service life
• The specially formulated blue gel inner electrolyte eliminates the chance of any air bubbles inside the sensor. Just so you don't have to worry about jumping readings out of nowhere
• The built-in temperature sensor enables automatic temperature compensation

0554 0872 E/RTC Marker (10 pc) by Testo

It is important to set the correct emissivity and reflected temperature in the thermal imager, and to create accurate thermal images. Previously this process was rather laborious.

Determining and setting emissivity and reflected temperature with the testo ε-Marker reference sticker is considerably easier. Attach the sticker to the measurement object – and your infrared camera with testo ?-Assist function will detect the sticker, determine the emissivity and the reflected temperature and automatically set both values.

• Reference stickers for automatic determination and setting of emissivity and reflected temperature (using a thermal imager with the testo ε-Assist function)
• Create accurate thermal images quickly and easily with testo ε-Marker
• Delivery quantity: 10 off

Includes:

testo ε-Marker, reference stickers for determining emissivity and temperature, 10 off.

Part Number: 550-7056-000

Part Number: H197150LM3

93831-20 Air / Gas RTD Probe, 100 Ohm, ANSI 3-Blade Connector, 5" L, 5ft Coil Cord by Digi-Sense

Maximum error for probe assembly is ±1.1°C + 0.12% of reading below 300°F, ±0.35% of reading above 300°F. Alpha coefficient is 0.003850 Ω/Ω/°C (DIN IEC 751). Resistance at ice point (0°C) is 100 Ω.

Note: Time constant is the time required to reach 63.2% of the new reading. To determine how long it will take to reach 99% of the new reading multiply the time constant by five.

Note: The temperature range is for the probe tip only. The handle material may be affected if the probe is rated higher than the handle depending on exposure time, application, and handle material. ABS handles are rated to 220°F (104°C); PVC handles are rated to 200°F (93°C); Stainless Steel handles are rated at 450°F (232°C); Mini Connectors are rated to 392°F (200°C).

• Time Constant: 1-3 seconds or greater
• Custom designs or changes to this product are available upon request

08009-62 ASTM Like Liquid-In-Glass Thermometer, 130C / Tank, Total Immersion, -7 to 105C, Organic Liquid Fill by Digi-Sense

These thermometers are precision manufactured to conform to ASTM E-1 specifications except for not being mercury filled. Designed for use in quality control laboratories or when mercury filled thermometers can not be used but where ASTM standards are still needed. ASTM established thermometer standards suited for special applications, and assigned an ASTM number according to each specification.

Thermometers feature permanently fused markings, blue spirit liquid, white background glass; are also individually serial numbered.

• Designed for specific ASTM (American Society for Testing and Materials) test methods
• Nonmercury blue spirit liquid

K-5520D Hydrogen Peroxide HR CHEMets® Test Kit (5-50 ppm) by AquaPhoenix

The K-5520C Hydrogen Peroixde HR CHEMets® Test Kit (1000-10000 ppm) comes in a plastic case and contains everything needed to perform 30 tests (except distilled water): HR CHEMets® Refill, Flat Comparator, 25 mL sample cup, 25 uL fixed volume pipet, pipettor tips, and instructions.

18525-15 Type K Spring Loaded Ind Thermocouple Probe Probe 6" L, 12" Ext .250 Dia, Ung Jct by Digi-Sense

These probes cannot be inserted directly into a medium. Spring loaded industrials are not sealed where the threads meet the probe. They must be inserted into a thermowell or other sealed vessel.

The temperature range is for the probe tip only. The handle material may be affected if the probe is rated higher than the handle depending on exposure time, application, and handle material. ABS handles are rated to 220°F (104°C); PVC handles are rated to 200°F (93°C); Stainless Steel handles are rated at 450°F (232°C); Mini Connectors are rated to 392°F (200°C)

• The probes can be installed with current housing without having to purchase a whole new industrial assembly
• Response Time: 3.75 seconds or greater
• Each probe comes with ½" NPT insertion threads
• Probes are spring loaded which allows the probe to be bottomed out into a thermowell
• Probes are welded and sealed which allows for direct insertion into a vessel
• Custom designs or changes to this product are available upon request
• Each probe comes with a color coded ANSI stripped leads: type J-red/white, type K-red/yellow, type T-red/blue

18525-23 Type K Spring Loaded Ind Thermocouple Probe Probe 12" L, 12" Ext .250 Dia, Ung Jct by Digi-Sense

These probes cannot be inserted directly into a medium. Spring loaded industrials are not sealed where the threads meet the probe. They must be inserted into a thermowell or other sealed vessel.

The temperature range is for the probe tip only. The handle material may be affected if the probe is rated higher than the handle depending on exposure time, application, and handle material. ABS handles are rated to 220°F (104°C); PVC handles are rated to 200°F (93°C); Stainless Steel handles are rated at 450°F (232°C); Mini Connectors are rated to 392°F (200°C)

• The probes can be installed with current housing without having to purchase a whole new industrial assembly
• Response Time: 3.75 seconds or greater
• Each probe comes with ½" NPT insertion threads
• Probes are spring loaded which allows the probe to be bottomed out into a thermowell
• Probes are welded and sealed which allows for direct insertion into a vessel
• Custom designs or changes to this product are available upon request
• Each probe comes with a color coded ANSI stripped leads: type J-red/white, type K-red/yellow, type T-red/blue

Old Part Number: HP10722
New Part Number: H10722VN