15 August 1997

Greenhouse CO2 easy to monitor

CHECK carbon dioxide levels in greenhouses and growth chambers using ADCs Delta-P monitor.

Using a pressure modulated infra-red gas analyser, the unit is said not to be poisoned by the presence of other gases. A microprocessor warns the user of self-diagnostic, electronic or flow failure.

The unit is available in three measuring versions; 0-1000ppm, 0-2000ppm or 0-0.3%. In each range, claims the company, the Delta-P monitor is accurate to within 2% of its operating scale. Price is £750. (01992-469638).