गोसोआव ला दि डिटेक्टर पेनफोरा आबुंथार नङा, नाथाय गोबां केसफोराव सोलियो मानोना बेफोरनि सांग्रा थाफादेर मुवा, जाय मोनसे आय'डीन गलिलाव, दंफांनि लेखा बिलाइजों फिनजाथाय जायो।
Be aware that detector pens are not foolproof, but work in many cases because their active ingredient, which is an iodine solution, reacts with wood-based paper.