Hotun Detect Sense In-Tundish Water Detection Alarm System

Hotun Detect Sense White and Black

Experience the innovative Hotun Detect Sense White and Black from Hotun by RA Tech UK Ltd, the world's first in-tundish water detection and temperature sensing audible and visual alarm system designed for dry trap tundishes. This patented, award-winning device provides immediate alerts for pressure relief valve (PRV) discharges or water tank overflows, helping to prevent boiler lock-outs, save water and energy, and ensure system reliability in unvented hot water systems. Perfect for residential and commercial plumbing applications, the Hotun Detect Sense clips onto any Hotun dry trap tundish in seconds, offering four-stage temperature-based warnings to aid fault diagnosis and comply with Building Regulations G3 guidance, particularly for those with impaired vision or mobility.

With its compact, battery-operated design, this PRV discharge alarm senses water presence and temperature, delivering audible beeps (72 dBA) and visual LED flashes to notify users of potential issues promptly. Whether you're installing in new builds or retrofitting existing systems, the Hotun Detect Sense promotes proactive maintenance, reduces energy consumption, and enhances safety by alerting to hidden tundish discharges. Embrace this critically acclaimed plumbing innovation for superior water heater protection and peace of mind in your heating setup.

Technical Specifications

• Kit Components: Includes alarm unit, 2032 coin cell battery, and clip-on mechanism for easy installation
• Compatibility: Fits all Hotun dry trap tundishes; suitable for unvented hot water systems, PRV, and tank overflow monitoring
• Detection Capability: In-tundish water detection with four-stage temperature sensing (Stage 1: up to 20°C; Stage 2: 21–60°C; Stage 3: 61–85°C; Stage 4: over 85°C); audible (72 dBA) and visual alerts with auto-mute, auto-reset, and manual override
• Benefits: Prevents boiler breakdowns, saves water and energy, complies with G3 regulations for visually/mobility impaired users, aids fault diagnosis
• Warranty: 2 years (as standard from manufacturer)
• Additional Features: Battery-operated with low battery warning; simple hook-on design requiring no electrical expertise; compact size (approximately 60mm x 35mm x 35mm); visible water puddle for post-discharge diagnosis; made in Britain

Please note: Delivery times may vary depending on location, with specific details outlined below.

Standard Delivery

UK Mainland 

• Delivery Time: 2–4 working days
• Free Delivery on all orders

Express Delivery

UK Mainland

• Delivery Time: 1–3 working days
• Delivery fee of £15

Channel Islands

• Postcodes Covered: GY*, IM*, JE* 
• Minimum Order: £50
• Delivery Fee: £70

Northern Ireland, Offshore Territories & Scottish Islands 

• Postcodes Covered: BT*, HS*, KW, ZE
• Minimum Order: £50
• Delivery Fee: £35

Same Day Delivery 

• Eligible Postcodes:
  E*, EC*, N*, NW*, SE*, SW*, W*, WC*, HA*, UB*, EN*, IG*, RM*, KT*, SM*, CR*, BR*, DA*, TW*
• Minimum Order: £50
• Same Day Delivery Fee: £60
• Special Requests or Locations:
  For areas outside these postcodes or urgent quotes, please email orders@qualityheating.co.uk and we’ll do our best to accommodate.

Collections

Want to collect your order instead?You’re welcome to do so — just email us at orders@qualityheating.co.uk or message us via WhatsApp with your preferred collection time, and we’ll confirm the details.

Collection address: 284 Water Rd, Unit 9, London, HA0 1HX