The Middle Atlantic MPR-SS Surge Suppressor Module for MPR is a transient voltage surge suppressor that lets you protect MPR Series modules when they are mounted in Middle Atlantic raceways.

Provides protection for MPR Series modules when mounted in raceways.

Mounts in integral J-Box with supplied double-stick tape.

Related Questions and Answers

Q: 1. Is there a color meter option included?

A: Unfortunately, this meter is strictly for exposure readings. Sekonic does offer their C-800 SpectroMaster Color Meter, BH # SEC800SM which offers color readings. https://bhpho.to/39ZV5dI

Q: 2. Will Sekonic L-858D-U trigger /adjust flash Canon 600 EX-RT (with or without ST-E3-RT Speedlite Transmitter)?

A: It will only trigger Pocket Wizards or Elinchro/Phottix systems but you must buy the transmitter for either system separately. So in your case, you would need the Pocket Wizard module and a pair of Pocket Wizard Transmitter/Receivers to set up with your Canon speedlight. The meter would be able to allow you to adjust the output of the light if you use a Pocket Wizard Flex TT fo Canon attached to the light. You could always just manually trigger your flash and read the output with the meter in cordless flash mode. Then you wouldnt need a module or Pocket Wizards. But there are much less expensive Sekonics that could do the same thing. Hope this helps.

Q: 3. How often should it be calibrated?

A: Sekonic does not list a time frame to have the Sekonic Speedmaster L-858D-U Light Meter calibrated. If you see that the meter is off you need to contact Sekonic on that. Is the USA it is, https://bit.ly/3nSVZiF

Q: 4. The L858 is a complex device offering a wide range of features good for professionals. My question is whether the basic function of metering -- whether in reflective, spot or incident -- is more accurate AND consistent in this model over other less expensive Sekonic meters. Or, are you just paying for all the extra features?

A: The added features would give this meter a higher price point. Whether the added features are something you need depends on how you will use the meter primarily.

Q: 5. Why is the Sekonic Broncolor Transmitter Module a recommended accessory when it comes with the kit?

A: While not necessary since this SKU comes with the Broncolor transmitter module, we've listed it under the recommended accessories so customer with just the light meter would be able to quickly find the necessary module for Broncolor's radio triggering protocol if they were looking to "upgrade", per se.

Q: 6. am from Asia 7 use PocketWizrd and Elinchrome ; can i also use this L-858D with the Sekonic RT-3PW Transmitter Module (433MHz, CE)?

A: Sekonic L-858D-U Speedmaster Light Meter Kit with Transmitter Module for Elinchrom & Phottix can be used in Asia as long as the triggers are also from the US.

Q: 7. will the radio module for the 758 work with with 858?

A: The L-858U requires the Sekonic RT-20PW PocketWizard Transmitter Module, B&H # SERT20PW. https://bhpho.to/2MpvqPn

Q: 8. This meter works with profoto b10 plus lights...? Thanks

A: You can use it with a B10, but it will not have direct control of the light.

Q: 9. Will L 858D-U work outside US as I would be travelling for work often?

A: Sekonic L-858D-U Speedmaster Light Meter Kit with Transmitter Module for Godox does work outside of the USA.

Q: 10. Does any light meter take into account an APS-C sensor in its readings?

A: No, it does not. A sensor's crop factor has no effect or bearing on the exposure of the image.