{"product_id":"ckctinner-rex-ch-series-dual-relay-pid-temperature-controller-lcd","title":"CKCTINNER REX-CH Dual Relay PID Temperature Controller LCD","description":"\u003ch2\u003eCKCTINNER REX-CH Series Dual Relay PID Intelligent Temperature Controller\u003c\/h2\u003e\n\u003cp\u003eTake precise control of your industrial and commercial temperature management with the \u003cstrong\u003eCKCTINNER REX-CH Series PID Intelligent Temperature Controller\u003c\/strong\u003e. Available in five panel sizes (CH102, CH402, CH502, CH702, CH902), this versatile unit features a bright LCD digital display, dual relay outputs, and a wide-range universal input — making it the go-to solution for OEMs, engineers, and industrial operators who demand accuracy and reliability.\u003c\/p\u003e\n\n\u003cp\u003eMade in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual Relay Outputs:\u003c\/strong\u003e Two independent electromagnetic relay outputs for flexible control and alarm configurations.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePID \u0026amp; ON\/OFF Control:\u003c\/strong\u003e Choose between intelligent PID auto-tuning or simple ON\/OFF switching to suit your application.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUniversal Input Compatibility:\u003c\/strong\u003e Accepts thermocouple types K, J, R, S, B, E, N, T, W5Re\/W26Re, PLII; RTD Pt100 \u0026amp; 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 ensures tight process control.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Power Supply Range:\u003c\/strong\u003e Operates on 100–240VAC, making it suitable for global use.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e2 Configurable Alarms:\u003c\/strong\u003e 12 alarm modes including deviation high\/low, band, process high\/low, and hold-action variants.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClear 4-Digit Display:\u003c\/strong\u003e 8-segment, 4-digit LED display with indicator lights for instant status monitoring.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCE Certified:\u003c\/strong\u003e Meets European safety and electromagnetic compatibility standards.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTouch Switch Setting:\u003c\/strong\u003e Easy front-panel programming via touch switches — no tools required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eModel Dimensions\u003c\/h3\u003e\n\u003ctable border=\"1\" cellspacing=\"0\" cellpadding=\"4\" style=\"border-collapse:collapse;width:100%;max-width:500px;\"\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eModel\u003c\/th\u003e\n      \u003cth\u003eExternal Dimensions\u003c\/th\u003e\n      \u003cth\u003ePanel Cut-Out\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eREX-CH102\u003c\/td\u003e\n\u003ctd\u003e48 × 48 × 75 mm\u003c\/td\u003e\n\u003ctd\u003e45±0.5 × 45±0.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eREX-CH402\u003c\/td\u003e\n\u003ctd\u003e48 × 96 × 75 mm\u003c\/td\u003e\n\u003ctd\u003e45±0.5 × 92±0.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eREX-CH502\u003c\/td\u003e\n\u003ctd\u003e96 × 48 × 75 mm\u003c\/td\u003e\n\u003ctd\u003e92±0.5 × 45±0.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eREX-CH702\u003c\/td\u003e\n\u003ctd\u003e72 × 72 × 75 mm\u003c\/td\u003e\n\u003ctd\u003e68±0.5 × 68±0.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eREX-CH902\u003c\/td\u003e\n\u003ctd\u003e96 × 96 × 75 mm\u003c\/td\u003e\n\u003ctd\u003e92±0.5 × 92±0.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eFull Technical Specifications\u003c\/h3\u003e\n\u003ctable border=\"1\" cellspacing=\"0\" cellpadding=\"4\" style=\"border-collapse:collapse;width:100%;max-width:600px;\"\u003e\n  \u003ctbody\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\u003eSupply Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100–240VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Consumption\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAC100–240V: under 10VA; AC24V: under 5VA; DC24V: under 160mA\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2× Electromagnetic Relay\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\u003eAlarm Quantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 Alarms\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDisplay\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8-segment 4-digit LED + LED indicators\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–50°C (32–122°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\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eYou May Also 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 panel sizes are available for the REX-CH Series PID Temperature Controller?\u003c\/h4\u003e\n\u003cp\u003eA: The REX-CH Series is available in five panel sizes: CH102 (48×48 mm), CH402 (48×96 mm), CH502 (96×48 mm), CH702 (72×72 mm), and CH902 (96×96 mm). All models share the same 75 mm depth and the same dual relay output architecture, so you can choose the size that best fits your control panel cut-out.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What sensor input types does this PID temperature controller support?\u003c\/h4\u003e\n\u003cp\u003eA: The REX-CH Series accepts a wide variety of input signals including thermocouples (K, J, R, S, B, E, N, T, W5Re\/W26Re, PLII), RTDs (Pt100, JPt100), voltage inputs (0–5V, 1–5V), and current inputs (0–20mA, 4–20mA). This universal input capability makes it suitable for a broad range of industrial and laboratory applications.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can this temperature controller be used with a 110V or 240V power supply?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The CKCTINNER REX-CH Series PID Temperature Controller supports a universal power supply range of 100–240VAC, so it works seamlessly in both North American (110V) and European\/international (220–240V) electrical systems without any modification.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is the difference between PID and ON\/OFF control modes?\u003c\/h4\u003e\n\u003cp\u003eA: In PID mode, the controller continuously calculates and adjusts the output to maintain the setpoint with minimal overshoot and oscillation — ideal for processes requiring tight, stable temperature regulation. ON\/OFF mode simply switches the output fully on or off when the temperature crosses the setpoint, which suits simpler applications where exact precision is less critical.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What panel sizes are available for the REX-CH Series PID Temperature Controller?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The REX-CH Series is available in five panel sizes: CH102 (48×48 mm), CH402 (48×96 mm), CH502 (96×48 mm), CH702 (72×72 mm), and CH902 (96×96 mm). 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ON\/OFF mode simply switches the output fully on or off when the temperature crosses the setpoint, which suits simpler applications where exact precision is less critical.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/n8ande-60.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Home page\", \"item\": \"https:\/\/n8ande-60.myshopify.com\/collections\/frontpage\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"CKCTINNER REX-CH Dual Relay PID Temperature Controller LCD\", \"item\": \"https:\/\/n8ande-60.myshopify.com\/products\/ckctinner-rex-ch-series-dual-relay-pid-temperature-controller-lcd\"}]}\u003c\/script\u003e","brand":"Axl","offers":[{"title":"CH402-MM-AN","offer_id":44167799111767,"sku":"14:350852#CH402-MM-AN","price":72.37,"currency_code":"USD","in_stock":true},{"title":"CH102-MM-AN","offer_id":44167799144535,"sku":"14:350850#CH102-MM-AN","price":71.84,"currency_code":"USD","in_stock":true},{"title":"CH902-MM-AN","offer_id":44167799177303,"sku":"14:10#CH902-MM-AN","price":76.11,"currency_code":"USD","in_stock":true},{"title":"CH702-MM-AN","offer_id":44167799210071,"sku":"14:350853#CH702-MM-AN","price":74.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0676\/6008\/7383\/files\/Sa8dd26dae4e5440c98a7027262bed0d0R.webp?v=1786763901","url":"https:\/\/axlcustomersupport.com\/products\/ckctinner-rex-ch-series-dual-relay-pid-temperature-controller-lcd","provider":"Axl","version":"1.0","type":"link"}