Reusable bracelet
A single bracelet lasts the whole night! Test several drinks or the same glass multiple times, as long as it is not activated by the presence of substances.
New · Official distributor 
Smart protection against drug-facilitated assault
Global Low World signs a distribution agreement for the technology developed by Celentis.
The problem
What is chemical submission?
The illicit use of drugs to incapacitate a person, usually slipped covertly into drinks without the victim’s knowledge.
It is a common strategy in sexual assaults, robberies and other crimes that leave the victim defenceless. The lack of detection tools means thousands of cases go unnoticed.
1 in 3
sexual assault reports in Spain is linked to chemical submission
The solution
The Celentis detection bracelet
Tyvek® bracelets with integrated colorimetric sensors that detect drugs in drinks. When the reactive area comes into contact with the substance it detects, it changes colour, indicating a “positive”.
Tyvek® is waterproof, durable and can be printed in full colour. The GHB detection bracelets are reusable: a single bracelet lasts you the whole night.
How it works
On-site detection in seconds
- 1Apply a small sample of the drink to the detection areas: wet your finger and touch the sensors.
- 2Watch for the colour change in the sensors.
No colour change: no substances detected
Colour change: danger
Two sensors on every bracelet
GHB sensor: liquid ecstasy
Aminated drugs sensor: ketamine, scopolamine (burundanga), MDMA, methamphetamine, etc.
Advantages of our technology
Clear colour change
The colour change is visible even in low-light environments, with 100% proven reliability at every event and no false positives.
Attack deterrence
No attacks have been recorded at any event covered by the detection bracelet. When the risk of being caught is high, criminals think twice.
Applications & sectors
Events & festivals
Guarantees safety at large gatherings and fosters an atmosphere of trust and responsible fun.
Clubs & bars
Equip your staff with a fast, discreet tool to protect customers and maintain an impeccable reputation.
Support points & emergencies
Working with support services for an immediate, effective response in assisting and protecting victims.
Individual use
Lets each person take control of their personal safety. Easy to use and discreet in any situation.
100% customisable design
Every product is customisable: add your logo and advertising and print in full colour on the Tyvek® material.
A perfect opportunity for public bodies, brands and events that want to associate their image with safe nightlife.
Create your own! Tell us your idea and we’ll get to work.
Request information
Corporate Social Responsibility
Active protection of society
Acts as a preventive shield, fostering a culture of vigilance and shared responsibility against chemical submission.
A resource for law enforcement
A valuable tool for the rapid identification of submission drugs and the collection of evidence in critical situations.
Institutional reputation
Organisations that adopt Celentis show a firm commitment to the safety and wellbeing of their users and customers.
University science
Celentis is a brand of Opticalsens, S.L., born from the joint work of the Inter-University Research Institute for Molecular Recognition and Technological Development (IDM) —Universitat Politècnica de València and Universitat de València— and the technology-transfer company TRL+.
Its optical sensors, based on colorimetric or fluorescent changes, stand out for their ease of use, speed and reliability, ideal for real-time detection.
Frequently asked questions
How does the bracelet work?
Use your finger to place a small drop of the drink on the sensors. If they don’t change colour, no substances are detected; if they do, it signals danger.
What substances does it detect?
It has two sensors: one for GHB (liquid ecstasy) and one for aminated drugs such as ketamine, scopolamine (burundanga), MDMA or methamphetamine.
Is it reusable?
Yes. A single bracelet lasts the whole night: you can test several drinks, or the same glass multiple times, as long as it isn’t activated by the presence of substances.
Can it give false positives?
No. The colour change is clearly visible even in low-light environments, with 100% proven reliability at every event.
Can it be customised with my logo or brand?
Yes. Tyvek® is waterproof, durable and printable in full colour, so you can add your logo and advertising.
Does it replace other safety measures?
No. The bracelet complements caution and self-protection measures; its goal is to promote safe, mindful nightlife.
How can I purchase the bracelets?
Global Low World is the official Celentis distributor. Write to us and we’ll advise you and prepare your order and custom design.
Want to purchase Celentis bracelets?
As an official distributor, Global Low World advises you and prepares a tailored solution. Write to us and we’ll give you all the details.
Request information