EXPEN – Explosives Detection & Identification

EXPEN products are ampoule-based ‘pens’ that detect 99% of all the Explosives encountered. They are NATO certified and are used by the British Army, US DoD, major Armies and POLICE Counter-Terrorism Forces globally. EXPEN’s are quick, cheap and easy to use. Robust Mollie Cases in variety of colours, Collection Papers, Colour Chart Instructions available.


  • Clear and Simple Test results in seconds
  • Sensitivity to the nanogram level
  • 3 Year Shelf-Life
  • Used globally in all climates and seasons
  • No Batteries or Maintenance Required
  • EXPENs come 25 in a box, or bespoke kits that you need


  • Detection of Explosive compounds in Combat Theatres or your local Street
  • Testing of suspicious packages or objects at check points/buildings
  • EOD operations
  • Confirming K-9 alerts
  • Analysis of post-blast Explosions

How to use

Explosives which can be Detected

EXPEN 1 Polynitro-Arcomatics: e.g. TNT, DNT, Picric Acid, DDNP
EXPEN 2 Nitrate-Esters; Nitramines: e.g. Semtex, RDX/C4, HMX, PETN
EXPEN 3 Inorganic Nitrate Compounds: e.g. ANFO, Ammonium Nitrate
EXPEN A Bromates / Chlorates: e.g. Potassium Chlorate, Potassium Permanganate
EXPEN B+ Peroxide-Based Improvised Explosives: e.g., TATP; HMTD
EXPEN P Perchlorates and flash powder
EXPEN U Tests for Urea Nitrate
EXPEN AN Test for Ammonium Nitrate and Calcium Ammonium Nitrate
EXPEN AZ Tests for Lead Azide
EXPEN N Nitroalkane family: nitromethane, nitroethane, nitropropane, etc.
EXPEN NST Inorganic Nitrate Compounds: e.g., ANFO; Ammonium Nitrate
EXPEN PO Test for Phosphates
EXPEN A+B Chlorates & Bromates. Tests for Chlorates/Peroxide-Based compounds
EXPEN CAN Test for Calcium Ammonium Nitrate

EXPEN Kits varieties

Basic EXPEN Kit (BKB-01) 20 x EXPEN 1, 2, 3, A
2 x MOLLE Pouch
100 x Test Papers, 1 x Tear-Proof Instructions
1 x Fitted Carboard Box
EXPEN Master (MKA-02) 5 x EXPEN 1, 2, 3, A, B+, P, U,
3 x MOLLE Pouch
40 x Test Papers; 1 x Tear-Proof Instructions
1 x Fitted Carboard Box
Dual Kit (DAB-01) 1 x EXPEN A, B+
4 x Test Papers
1 x Tear-Proof Instructions
1 x Fitted Carboard Box