--- product_id: 118524648 title: "CH402 Temperature Controller, Thermostat AC85-264V Calibration Centigrade High Precision Smart PID Cooling Relay TC/RTD Input" brand: "caredy" price: "FREE" currency: GBP in_stock: false url: https://www.desertcart.co.uk/products/118524648-ch402-temperature-controller-thermostat-ac85-264v-calibration-centigrade-high-precision store_origin: GB region: United Kingdom --- # AC85-264V universal power Advanced fuzzy PID control ±0.5% precision CH402 Temperature Controller, Thermostat AC85-264V Calibration Centigrade High Precision Smart PID Cooling Relay TC/RTD Input **Brand:** caredy **Price:** FREE **Availability:** ❌ Out of Stock ## Summary > 🌡️ Master your environment with precision and power — don’t let your workflow settle for less! ## Quick Answers - **What is this?** CH402 Temperature Controller, Thermostat AC85-264V Calibration Centigrade High Precision Smart PID Cooling Relay TC/RTD Input by caredy - **How much does it cost?** FREE with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/118524648-ch402-temperature-controller-thermostat-ac85-264v-calibration-centigrade-high-precision) ## Best For - caredy enthusiasts ## Why This Product - Trusted caredy brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact Yet Robust Design:** Small footprint with industrial-grade anti-interference stability—fits tight spaces without compromising reliability. - • **Smart Fuzzy PID Algorithm:** Harness cutting-edge fuzzy PID control for rapid response and stable temperature management, even with sudden changes. - • **Plug-and-Play Communication:** Built-in communication functions make integration and monitoring effortless, keeping you connected and in control. - • **Universal Voltage Compatibility:** Seamlessly integrates anywhere with a wide AC85-264V power supply range, perfect for global or industrial setups. - • **Precision that Powers Performance:** Experience ultra-accurate temperature control with ±0.5% error margin, ensuring your processes never miss a beat. ## Overview The CH402 Temperature Controller by Caredy delivers high-precision temperature regulation with ±0.5% accuracy, supporting multiple sensor types (TC/RTD) and a wide input voltage range (AC85-264V). Featuring advanced fuzzy PID control and a non-overshoot self-tuning scheme, it ensures rapid, stable temperature adjustments. Its compact design and communication capabilities make it ideal for professional HVAC and industrial applications demanding reliable, smart temperature management. ## Description Features: Advanced non-overshoot self-tuning scheme for convenient use, also with communication function. The controller has small size and stable performance, easy to operate. Specifications: Input: Thermocouple (TC)(K, J, R, S, B, E, N, T), thermal resistance (RTD) (PT100, JPT100, Cu50) standard voltage current signal Temperature Range: 0~1300℃ Basic Error: ± 0.5%±1digit of full range input Resolution: 1℃, 0.1℃ Sampling Speed: 3 times/sec Alarm Output: Relay contact AC250V 3A (resistive) Control Output: Relay contact AC250V 3A (resistive) Logic Level: DC 0/12V (with solid state relay) Zero Crossing Trigger Pulse: Optocoupler SCR output 1A 600V; 0-10mA current output (load resistance is less than 600Ω); 0-20mA current output (load resistance is less than 600Ω); 4-20mA current output (load resistance is less than 600) Control Mode: Fuzzy PID control, position control Power Supply Voltage: AC85-264V (50/60Hz), ( rated 100-240VAC) 100-240V universal switch power supply Operating Temperature: 0~50℃ Operating Humidity: <85%RH Power Consumption: <5VA Package Includes: 1 x Temperature Controller 2 x Screws ## Features - This smart digital temperature controller uses advanced special chip for industrial instruments of high precision, strong anti-interference ability - High reliability, multi-type sensor input, using wide range switching power supply - It has the new fuzzy control combined with the advanced PID control algorithm, good control of rapid change and long lag time - Advanced non-overshoot self-tuning scheme for convenient use, also with communication function - The controller has small size and stable performance, easy to operate ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07MXHTBQB | | Brand | Caredy | | Colour | black | | Manufacturer | Caredy | | Manufacturer Part Number | Caredyt5oc4v0gn7 | | UPC | 719527678776 | ## Product Details - **Brand:** Caredy - **Colour:** black - **Manufacturer:** Caredy - **UPC:** 719527678776 ## Images ![CH402 Temperature Controller, Thermostat AC85-264V Calibration Centigrade High Precision Smart PID Cooling Relay TC/RTD Input - Image 1](https://m.media-amazon.com/images/I/61DBqtq9QNL.jpg) ![CH402 Temperature Controller, Thermostat AC85-264V Calibration Centigrade High Precision Smart PID Cooling Relay TC/RTD Input - Image 2](https://m.media-amazon.com/images/I/71oj5e10Q1L.jpg) ![CH402 Temperature Controller, Thermostat AC85-264V Calibration Centigrade High Precision Smart PID Cooling Relay TC/RTD Input - Image 3](https://m.media-amazon.com/images/I/614+x08kEuL.jpg) ![CH402 Temperature Controller, Thermostat AC85-264V Calibration Centigrade High Precision Smart PID Cooling Relay TC/RTD Input - Image 4](https://m.media-amazon.com/images/I/6138tfPr-3L.jpg) ![CH402 Temperature Controller, Thermostat AC85-264V Calibration Centigrade High Precision Smart PID Cooling Relay TC/RTD Input - Image 5](https://m.media-amazon.com/images/I/61rhyfxQucL.jpg) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/118524648-ch402-temperature-controller-thermostat-ac85-264v-calibration-centigrade-high-precision](https://www.desertcart.co.uk/products/118524648-ch402-temperature-controller-thermostat-ac85-264v-calibration-centigrade-high-precision) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-06-22*