This is a PID temperature controller. There's 1 relays on this controller. It's ONLY can be used for resistive HEATING Application such as crock pot, immersion heater and incandescent lamp. NO COOLING Mode. HOW PID WORKS: The PID function uses system feedback to continuously control a dynamic process. The purpose of PID control is to keep a process running as close as possible to a desired temperature. It doesn't mean the temp will stay at a point statically. The temp might fluctuate in a range such as 99.8~100.1, 99.5~100.2. The range is determined by real application environment and power of heater as well as how well you set the controller. Note: Function of d, P, dT in this controller are similar with P(proportional), I(integral), d(derivative) in traditional PID controller. But they're not 100% the same in inner algorithm because it's optimized for easier operation and more accurate control. Specification: 1.Power supply: AC 110V ~ 240V, 50/60Hz , Power output is same as Power input 2.Measure range: -4°F ~ +220°F(-20°C ~ 105°C) 3.Temperature resolution: 0.1 4.Accuracy: ±0.5 (can be calibrated) 5.Working mode: ONLY Heating mode 6.Control resolution: 0.1 7. Power consumption: less than 3W 8. Relay contact capacity: 8A. For safety, make sure current of your device is less than 8A. i.e. 110V device must be less than 880W, 240V device must be less than 1920W 9.Data retention: Yes 10.High/Low Temperature alarm: Yes 11.Product size:12.5*9.1*4.5 cm 12.Sensor Cable length: 3m/9.8ft Advanced function: 1.Switch temperature unit(Default: °F): °F or °C Package Content: 1x WH1436PID Temperature controller
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