Home / Communication / NurseCall / C-Tec 800 Series Product Description Expands the number of zones on an NC910S or NC920S Call Controller by 10 zones Housed in an attractive surface mounting plastic enclosure measuring just 214mm x 178mm. Includes an onboard buzzer and 10 or 20 Zonal Alarm LEDs capable of indicating Standard and Emergency Calls. Innovative slide-in labelling system. Quiescent current 0mA (none). Alarm current Determined by the number/type of field devices connected to the call controller/system. Indicators Green Power on LED; 10 (NC910ES) or 20 (NC920ES) red Zonal Alarm LEDs (lit steady for a Standard call, pulse for an Emergency call); Internal buzzer (on steady for any Standard call, intermittent for any Emergency call). Controls None. 2 Buttons - (A) Reset or inactive ; (B) 'Mute' or 'Call Accept' available via NC910S or NC920S master controller Call acknowledgement functionality Yes. Product dimensions (mm) 214 W x 178 H x 70 D mm. Surface mounting. Construction & finish Plastic detachable lid and back box. RAL7035. IP Rating IP41. Weight 1.27kg. Operating conditions/temperature -5ºC to +40ºC. Max. relative humidity 95% non-condensing. Specifications MPN NC910ES Brand C-TEC Product Code NC910ES Customer reviews No reviews left yet Write A Review Sort byMost RecentTop Rated Delivery & Returns Free UK Delivery over £250Returns Policy: The company operates a 14 day returns policy, products returned in an unopened / undamaged condition will be refunded. Customer Reviews 10 Zone Expansion Unit for NC910S or NC920S Product Code NC910ES 214 W x 178 H x 70 D mm. Surface mounting. £220.93 £265.12 (inc. VAT) Login to add this product to your wishlist.