Contact our sales department at 1-800-364-9897 and they'll provide you with instructions on sending in your proof of purchase of a competitor's kit. (It can be a competitor's EIA or RIA kit.) Then we'll send you the comparable Cayman Chemical 96-well EIA kit absolutely free!

This offer is available to US and Canadian customers only. Limit of one kit per customer, includes only Cayman Chemical manufactured acetylcholinesterase based assays. Customer will be responsible for shipping costs and may be required to submit absorbance, standard curve, or other data to document the performance of the kit after receipt.

Please contact Cayman Europe or a distributor in your area for details.