The OM-84 model features a miniature weather-resistant design with a
factory-replaceable battery. Stored data can be downloaded using the
reader and software that is included. Each package of data loggers comes
with a certificate stating NIST-traceability. Built-in LEDs display
high and low alarm verification indicating whether or not measured
temperatures have remained within the user-programmable alarm window
throughout deployment. Pricing begins at $90 for a pack of 5.Omega Engineering Inc.www.omega.com203.359.1660