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大棚温室远距离测温控温仪由ＡＤ５９０做感温元件，运算放大器组成放大电路，用数字电压表实现温度的数字显示。该仪器在０℃～５０℃温度范围内进行了试验，其测温和控温误差≤±１℃。仪器可在１０００ｍ范围内实现远距离监控
Greenhouses long-distance temperature control temperature controller by the AD590 to do the temperature sensing components, operational amplifier amplifier, with a digital voltage meter to achieve the temperature of the digital display. The instrument in the 0 ℃ ~ 50 ℃ temperature range for the test, the temperature and temperature control error ≤ ± 1 ℃. Instrument can be realized in the range of 1000m long-distance monitoring