**Hollis Explorer Firmware Update**

We are pleased to release Firmware 4.40 for the Hollis Explorer Rebreather!

On a number of Explorer units, the sensor module intermittently drops communication during setup. This is now resolved. There has also been an update to the charging software, the red charge LED will now illuminate even when the batteries are completely dead, and green LED when “ready to dive.


Click HERE for download instructions.

Download the Explorer Firmware Updater and USB drivers below.


DG05 Prolink Software Prolink 2010
VGM Proplanner N/A
Hollis Computer Interface (HCI) 2.X for DG02 & DG03 2.X 5/24/2013
Hollis Computer Interface1.x for DG 01 1.0.1 5/21/2009
Hollis Computer Interface Explorer 1.0.2 3/31/2014
Explorer Firmware Updater 4.40  4/11/2016
Hollis Trimix Computer Interface 1.0.4 10/31/2014

USB Drivers

USB Driver – Hollis Explorer
VCP (Virtual COM-Port)
Windows 98 SE/ME
Windows 2000
Windows XP/Vista/7/8 (64 bit)
Windows XP/Vista/7/8 (32 bit)
Windows 7/8/8.1/10 (Explorer)

Remove USB cable from PC USB port, download & extract .exe to install driver. Follow USB Driver Installation Instructions located in the software Help file.