Zappcool panel temperature indicators offered by emmppe associates are designed for mounting on panel doors or side walls as well as in panel coolers. These temperature indicators are very small in size measuring 35 mm x 77 mm x 85 mm [depth], and have display of 12.5 mm, two-digit, range -55 c to 90 c and 450 mm sensor length. Additional features of the panel temperature indicators include: panel high temperature, low temperature, indication, switching contact point for remote monitoring, front panel lock, etc.