Sentinel D-Box Sensors & Controls
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Ambient Response Humidity Sensor* Humidity Sensor control is fixed at 72 - 75%RH. Incorporates a night time 'set back' function to avoid nuisance tripping as the humidity level rises when the air cools. An integral pullcord provides a manual override function if required. Can be wired for either On/Off or Trickle/Boost operation. Pullcord override and neon indicator. Changeover relay switch. Operating range: 30% - 90%RH. Ambient operating temperature +5°C to +40°C. 24V DC SELV. Dimensions:87 x 87 x 33mm (H x W x D). Will fit single gang box for surface mounting. Stock Ref 432945 rings are included to allow setting within a limited temperature range or locking at a fixed set-point. IP20 rated. Sealed sensing mechanism. Mounting direct on surface only. Dimensions: 80 x 104 x 36mm (H x W x D). Volt free switch connection to Sentinel. Stock Ref 563502 Air Quality Sensor (AQS) * Automatically reacts to the deterioration of air quality, sensing tobacco smoke, smells and toilet odours to regulate mechanically ventilated areas, such as cinemas, pubs, clubs, restaurants, kitchens, toilets and conference rooms. Ecotronic Humidity Sensor* Humidity Control is automatic and can be set to switch between 65 and 90%RH. An integral pullcord provides a manual override function if required. Can be wired for either ON/OFF or Trickle/Boost operation. Set point adjustable. Maximum switching load 1 amp inductive. Pullcord override indicator. Ambient operating temperature 0°C to +40°C. Dimensions:87 x 87 x 33mm (H x W x D). Supply voltage 24V DC SELV. Humidity sensors should be sited approx. 100mm below ceiling level and not above cupboards, refer to siting details in fitting and wiring instructions supplied with product. Stock Ref 432949 Vent-Axia ThermoSwitch® Automatically switches on fans on either a rise or fall in air temperature. Can be used for Trickle/ Boost operation on either intake or extract systems. Setting range: +6°C to +30°C. Two internal range limit/locking The sensor switches when the air quality declines below an adjustable preset level. This is registered by a self-cleaning ceramic sensing head. The air quality sensor should not be used for the detection of combustible gases. Ambient operating temperature range 0°C to +50°C. MIN -MAX mode or direct Damper control. Dimensions:87 x 157 x 47mm (H x W x D) Surface mounted. 1 - 25 min O/R timer. Supply voltage Vent-Axia Visionex PIR* A wall or ceiling person presence detector for use with Sentinel. Can be used in MIN - MAX mode or for direct damper control. Fits any UK single gang mounting box. Adjustable timer overrun (5-25 minutes). Range of detection up to 10 metres. Designed to meet IP43. Ambient operating temperature range 0°C to +50°C. Supply voltage 24V DC SELV. Stock Ref PLEASE NOTE: These sensors/controls are unique to Sentinel and CANNOT be used with any other product.

7 Day TimeSwitch For applications where regular switching is required at fixed periods or at different times on different days of the week, eg:offices, shops, pubs and restaurants. The 7 Day TimeSwitch gives twelve On or Off positions per day and can be set for 7 days. The cycle will repeat until changed. Volt free switch connection to Sentinel. Analogue clock display and integral time switches for ease of setting. Manual override. Removable clear plastic cover protects timeswitch face. Time base: 7 days. Shortest switching time: 2 hours. Ambient operating temperature range -20°C to +85°C....