Available in RoHS compliant, request verification. The Stamp Collection consists of the BS1-IC, BS2-IC, BS2PE-IC, BS2PX24, BS2P40 and the BS1 Serial Adapter (so you can program the BS1 in a Windows environment). Test these five BASIC Stamp® modules to see what meets your design needs. The Stamp Collection saves you over $120 off the retail price if purchased individually. All of these modules are compatible with our Professional Development Board. Downloads: BASIC Stamp Manual v2.2 (.pdf)