PHD ULTRA
Biosystems, Inc.: Confined space gas detector measures oxygen, combustibles, and up to two toxic gases. All normal procedures including “Auto Cal” adjustment controlled through the single On/Off mode button. Automatically logs gas readings, user and location ID, and other important information. Housed in a rugged, compact case. Choice of snap-in NiCad or alkaline battery packs. Tel: (203) 344-1079.
