(Click here for larger image) Mfg Part Number : 33122	Ocean Reef GSM Dual Channel Communication Unit Eligible for Free Standard Shipping on orders over $25 Customer reviews see below Features a digital driver for vocal message equalization, an automatic system for activating (DAT) transmission and a double transceiver channel The standard frequency (channel one) is the same for all units, so it is possible to talk directly with any other GSM DC, GSM DAT, GSM, M-101A receive units, surface M-105 Digital units and all previous surface systems (M103 - M104 - M105) The double channel allows two different diver groups to operate in the same area, limiting the interference between them FULL MANUFACTURER'S WARRANTY Divers Baseball Cap $6.95 Oceanreef Underwater Receiving Unit $294.95 5 feet x 2 1/2 feet Scuba Beach Towel $9.95  Dual Channel		$848.00

Customer Reviews for Ocean Reef GSM Dual Channel Communication Unit: (Review this product)
See the top 20 most helpful scuba gear reviews

Average Customer Review: based on 2 reviews.

Rating: Awesome
Reviewer: Richard Belmore, Friday, July 06, 2007
Im a member of a Dive Team, we used the Communication units on a drowning recovery. The Units worked perfectly, we used them along with our surface unit to guide he divers through low vis conditions.

Did this Review help? Yes No

217 out of 413 people found this review helpful.



Rating: Comm Unit
Reviewer: James Athey, Tuesday, September 19, 2006 - View all my reviews
I understand that these are quality comm units, but we had difficulties and decided to purchase a competitors model instead. James

Did this Review help? Yes No

260 out of 544 people found this review helpful.