We are offering temperature high selector.Specifications allows 612 input for rtd sensorsoperates on 230110vac (selectable)provides 4-10ma output for 650ohms load which follows highest temperaturebypass facility for individual channelsall the calibrations adjustments are from front keypad (digital calibration). Trimming is not required at all. housed in a wall mountable box. Led display and membrane keys are provided for setting the temperature limits. The led display normally shows the highest value of the temperature amongst the channels connected. Suitable connectors are provided for connecting rtd sensors. two groups can be formed having individually selectable channels. Two 4-20ma outputs suitable for 650ohm load are provided which follow the highest temperature of the two groups. *option available only in 12 channel temperature high selector