Battery operated, hand held temperature indicators are offered by omega electronics. The instruments have some technical features which include: a range of 0 400°c and an accuracy of 0.5% fsd. Input is normally thermocouples [fetconst, cr/ al] pt 100. Omega electronics also provides digital controllers, analoguecontrollers, digital timers, pulse counters, preset counters, digital temperature scanners and thermocouples.