$50 - $75

Part Number: P1013300PA

93405 Camera Adapter for Sony Mirrorless, RASA 8 by Celestron

Mirrorless cameras are spreading like wildfire in the astroimaging community and for good reason. When paired with Celestron's groundbreaking 8" Rowe-Ackermann Schmidt Astrograph (RASA), you can achieve spectacular deep-sky astronomical images.

So what makes a mirrorless camera the perfect match for RASA? First, the compact camera body provides minimal obstruction when placed on the front of the RASA optical tube. Second, the sensitive imaging chip helps capture every bit of stunning detail that the RASA optical brings in.

If you'd like to use your Sony mirrorless camera with the 8" RASA, this adapter is a must-have accessory. Using the camera's integrated bayonet mount, it attaches securely to the front of RASA. What's more, this adapter places the camera's sensor at the precise backfocus distance for optimal image sharpness.

• Connect your Sony mirrorless camera to the 8" RASA with one simple solution - no other adapters required.
• Places the camera sensors at the proper backfocus distance for the 8" RASA for pinpoint stars across the entire field of view.
• Uses the camera's bayonet mount for a secure connection that won't rotate once installed.
• Made of machined aluminum with black anodized finish.

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

Old Part Number: P101660
New Part Number: P101660PA

Part Number: P197150LM21

TDS150/G Conductivity Solution, 150ppm/229uS, 1 Gal by Sensorex

TDS/Conductivity instruments and sensors must be calibrated together. For a single-point calibration, select the one solution that approximates the expected conductivity or ppm level of total salts. Mixed Salt standards are the most frequently used in the field to sample naturally occurring water sources, boiler feed water, or cooling tower water. Typical river water, well water, or lake water sample will contain a mixture of several different salts. Sensorex Mixed Salt standards simulate a "Natural" mixture of common salt compounds found in these sources. Sodium sulfate, sodium bicarbonate, and sodium chloride salts are blended to provide a representative value. There are certain applications where Single Salt Solutions are preferred. NaCl Solution is routinely used to calibrate instruments measuring Sea Water or brackish water samples. Reagent grade salt and high resistivity DI water is compounded for accurate results. KCI Single Salt Solution may be used with conductivity meters that read directly in Siemens or Ohms. KCI (potassium chloride) is established as an international calibration standard for conductivity measurement. Choose the conductivity calibration solution that is right for your application. CA Residents: Prop 65 WARNING(S)

Old Part Number: P10131000N
New Part Number: P10131000PN

PH105 Electrode for Extech PH100 Meter by AquaPhoenix

The Extech PH105 pH ExStik® Electrode Module is an easy to clean, rugged flat surface pH electrode. It is interchangeable with the ExStik® Chlorine or ORP meters and measures in liquids, semi solids and solids. Also, it has the ATC via the built-in PT-100 Ohm sensor. The Extech PH105 pH ExStik® Electrode Module comes complete with the protective connector cap.

Part Number: 10L-34-2000

Part Number: P197825LA

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

Part Number: 10L-399-35