{"product_id":"chb402-702-902-dual-output-pid-temperature-controller-220v","title":"CHB402\/702\/902 Dual Output PID Temperature Controller 220V","description":"\u003ch2\u003eCKCTINNER CHB Series Dual Output PID Temperature Controller\u003c\/h2\u003e\n\u003cp\u003eTake precise control of your industrial and commercial heating or cooling processes with the \u003cstrong\u003eCKCTINNER CHB402\/702\/902 Digital Temperature Controller\u003c\/strong\u003e. Featuring a dual output design — \u003cstrong\u003eElectromagnetic Relay + SSR (Solid State Relay)\u003c\/strong\u003e — this intelligent thermostat delivers exceptional versatility across a wide range of applications. With universal sensor input compatibility and advanced PID or ON\/OFF control modes, this controller is engineered for professionals who demand accuracy and reliability.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMade in Mainland China.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual Output:\u003c\/strong\u003e Electromagnetic Relay + SSR output (CHB402\/702\/902); single relay or SSR output available on CHB401\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUniversal Sensor Input:\u003c\/strong\u003e Supports Thermocouple types K, J, R, S, B, E, N, T, W5Re\/W26Re, PLII; RTD: Pt100, JPt100; Voltage: 0–5V, 1–5V; Current: 0–20mA, 4–20mA\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh Accuracy:\u003c\/strong\u003e ±0.5% FS ± 1°C for dependable, repeatable measurements\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePID \u0026amp; ON\/OFF Control:\u003c\/strong\u003e Flexible control methods to match your process requirements\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClear Digital Display:\u003c\/strong\u003e 8-segment, 4-digit LED display with LED indication for at-a-glance monitoring\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Operating Range:\u003c\/strong\u003e Max measuring temperature 120°C and above; operating temp 0–50°C (32–122°F)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMultiple Alarm Modes:\u003c\/strong\u003e Up to 12 alarm configurations including deviation high\/low, band, process high\/low, and hold action variants\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVersatile Mounting:\u003c\/strong\u003e Standing or wall-hanging installation to suit your setup\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCE Certified:\u003c\/strong\u003e Meets CE standards for safety and quality assurance\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupply Voltage:\u003c\/strong\u003e 220V AC (under 10VA power consumption); also supports AC24V and DC24V variants\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Humidity:\u003c\/strong\u003e 30–85% RH max, non-condensing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCHB402 \/ CHB702 \/ CHB902 (REX-CH Series)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSupply Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e220V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Types\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eElectromagnetic Relay + SSR\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAccuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±0.5% FS ± 1°C\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eControl Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePID or ON\/OFF\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Measuring Temp\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e120°C and above\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temp\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0 to 50°C (32 to 122°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Humidity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e30–85% RH, non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCertification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCE\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMounting Style\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStanding \/ Wall Hanging\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eAlarm Configurations\u003c\/h3\u003e\n\u003cp\u003eThe CHB series supports a wide range of alarm modes (default: 1 alarm; 2-alarm versions available by custom order):\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eN: No alarm\u003c\/li\u003e\n  \u003cli\u003eA: Deviation low | B: Deviation high | C: Deviation high\/low | D: Band\u003c\/li\u003e\n  \u003cli\u003eE: Deviation high with hold action | F: Deviation low with hold action | G: Deviation high\/low with hold action\u003c\/li\u003e\n  \u003cli\u003eH: Process high | J: Process low | K: Process high with hold action | L: Process low with hold action\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIdeal For\u003c\/h3\u003e\n\u003cp\u003eIndustrial process control, HVAC systems, laboratory equipment, ovens, incubators, kilns, aquariums, and any application requiring precise temperature regulation.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/air-compressor-pressure-gauge-0-10-0-12-0-25-bar-hydraulic-diy\"\u003eAir Compressor Pressure Gauge 0-10\/0-12\/0-25 Bar | DIY Tool\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/electromagnetic-induction-tester-coil-motherboard-fault-detector\"\u003eElectromagnetic Induction Tester – Coil \u0026amp; Circuit Fault Detector\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/hand-power-tools\" target=\"_blank\" rel=\"noopener\"\u003eOSHA guidance on hand and power tools\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What is the difference between the CHB401 and the CHB402\/702\/902 temperature controllers?\u003c\/h4\u003e\n\u003cp\u003eA: The CHB401 is a single-output model — you choose either a Relay or SSR output. The CHB402, CHB702, and CHB902 are all dual-output models that include both an Electromagnetic Relay output AND an SSR (Solid State Relay) output, giving you greater flexibility for controlling multiple devices or processes simultaneously.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What types of temperature sensors are compatible with this controller?\u003c\/h4\u003e\n\u003cp\u003eA: The CHB series supports a wide range of universal inputs including thermocouples (K, J, R, S, B, E, N, T, W5Re\/W26Re, PLII), RTDs (Pt100, JPt100), voltage signals (0–5V, 1–5V), and current signals (0–20mA, 4–20mA), making it compatible with virtually any standard industrial sensor.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can this temperature controller be wall-mounted?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The CKCTINNER CHB series supports both free-standing and wall-hanging installation styles, offering flexible placement options to suit your workspace or control panel setup.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Does this unit support PID control?\u003c\/h4\u003e\n\u003cp\u003eA: Absolutely. The CHB402\/702\/902 supports both PID (Proportional-Integral-Derivative) and ON\/OFF control methods. PID mode offers highly accurate, stable temperature regulation, while ON\/OFF mode provides a simpler, threshold-based control option.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is the difference between the CHB401 and the CHB402\/702\/902 temperature controllers?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The CHB401 is a single-output model — you choose either a Relay or SSR output. The CHB402, CHB702, and CHB902 are all dual-output models that include both an Electromagnetic Relay output AND an SSR (Solid State Relay) output, giving you greater flexibility for controlling multiple devices or processes simultaneously.\"}}, {\"@type\": \"Question\", \"name\": \"What types of temperature sensors are compatible with this controller?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The CHB series supports a wide range of universal inputs including thermocouples (K, J, R, S, B, E, N, T, W5Re\/W26Re, PLII), RTDs (Pt100, JPt100), voltage signals (0–5V, 1–5V), and current signals (0–20mA, 4–20mA), making it compatible with virtually any standard industrial sensor.\"}}, {\"@type\": \"Question\", \"name\": \"Can this temperature controller be wall-mounted?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. The CKCTINNER CHB series supports both free-standing and wall-hanging installation styles, offering flexible placement options to suit your workspace or control panel setup.\"}}, {\"@type\": \"Question\", \"name\": \"Does this unit support PID control?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Absolutely. The CHB402\/702\/902 supports both PID (Proportional-Integral-Derivative) and ON\/OFF control methods. 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