The XH-M452 is a 12V digital temperature and humidity controller featuring a dual-display for managing devices like heaters, coolers, and humidifiers via an SHT20 sensor. It operates in both heating/cooling and humidification/dehumidification modes based on user-defined start and stop setpoints, including calibration and factory reset functions. For the full instruction manual and PDF, visit

The Go to product viewer dialog for this item. is a high-precision dual-display digital controller designed to monitor and regulate both temperature and humidity independently using a DC 12V power supply. It is widely used for automated climate control in incubators, greenhouses, and industrial cabinets. Detailed documentation and setup instructions are available through resources like the XH-M452 Temperature Controller Manual (PDF) or the XH-M452 Thermostat Setup Guide found on Scribd . Technical Specifications Power Supply: DC 12V. Temperature Range: -40°C to +120°C (Accuracy: ±0.1°C). Humidity Range: 0% to 100% RH (Accuracy: ±0.1% RH). Output: Two independent 10A relay outputs (dry contacts). Sensor: Integrated AM2120 or SHT20 probe with approximately 1m cable. Control Operations The module automatically determines the operating mode based on your set "Start" and "Stop" values. XH-M452 Dual Temperature & Humidity Control Module

Comprehensive Guide to the XH-M452 Battery Charging Control Module Overview The XH-M452 is a popular, low-cost automatic battery charging control module used for lead-acid batteries (gel, sealed, flooded, and AGM). It functions as an intelligent on/off switch based on voltage thresholds, making it ideal for DIY battery charging systems, solar charge controllers, backup power setups, and battery-powered projects. Key Specifications | Parameter | Value | |-----------|-------| | Input Voltage | DC 12V (or up to 30V depending on relay) | | Control Accuracy | 0.1V | | Display | 3-digit 0.56" red LED | | Relay Capacity | 10A (can be upgraded with external contactor) | | Operating Current | < 100mA | | Dimensions | 73mm × 48mm × 20mm | Pinout and Wiring

VCC / VIN – Connect to battery positive terminal (power supply for module) GND – Connect to battery negative terminal Load / OUT – Normally open relay contact (connects to charger input or load)

⚠️ The module draws power directly from the battery it is monitoring. Do not exceed 30V.

Programming the XH-M452 The module uses two user-set voltage parameters:

Start Voltage (SV) – Voltage at which the relay turns ON (charging starts) Stop Voltage (HV) – Voltage at which the relay turns OFF (charging stops)

Setting Procedure (Typical)

Press SET once → shows “SV” (start voltage) Press SET again → adjust value using UP/DOWN Press SET to confirm Repeat for HV (stop voltage)

Example for 12V Lead-Acid Battery:

Start (recovery charge): 11.8V – 12.0V Stop (full charge): 14.4V – 14.7V

Applications

Xh-m452 Manual Pdf -

The XH-M452 is a 12V digital temperature and humidity controller featuring a dual-display for managing devices like heaters, coolers, and humidifiers via an SHT20 sensor. It operates in both heating/cooling and humidification/dehumidification modes based on user-defined start and stop setpoints, including calibration and factory reset functions. For the full instruction manual and PDF, visit

The Go to product viewer dialog for this item. is a high-precision dual-display digital controller designed to monitor and regulate both temperature and humidity independently using a DC 12V power supply. It is widely used for automated climate control in incubators, greenhouses, and industrial cabinets. Detailed documentation and setup instructions are available through resources like the XH-M452 Temperature Controller Manual (PDF) or the XH-M452 Thermostat Setup Guide found on Scribd . Technical Specifications Power Supply: DC 12V. Temperature Range: -40°C to +120°C (Accuracy: ±0.1°C). Humidity Range: 0% to 100% RH (Accuracy: ±0.1% RH). Output: Two independent 10A relay outputs (dry contacts). Sensor: Integrated AM2120 or SHT20 probe with approximately 1m cable. Control Operations The module automatically determines the operating mode based on your set "Start" and "Stop" values. XH-M452 Dual Temperature & Humidity Control Module

Comprehensive Guide to the XH-M452 Battery Charging Control Module Overview The XH-M452 is a popular, low-cost automatic battery charging control module used for lead-acid batteries (gel, sealed, flooded, and AGM). It functions as an intelligent on/off switch based on voltage thresholds, making it ideal for DIY battery charging systems, solar charge controllers, backup power setups, and battery-powered projects. Key Specifications | Parameter | Value | |-----------|-------| | Input Voltage | DC 12V (or up to 30V depending on relay) | | Control Accuracy | 0.1V | | Display | 3-digit 0.56" red LED | | Relay Capacity | 10A (can be upgraded with external contactor) | | Operating Current | < 100mA | | Dimensions | 73mm × 48mm × 20mm | Pinout and Wiring

VCC / VIN – Connect to battery positive terminal (power supply for module) GND – Connect to battery negative terminal Load / OUT – Normally open relay contact (connects to charger input or load) xh-m452 manual pdf

⚠️ The module draws power directly from the battery it is monitoring. Do not exceed 30V.

Programming the XH-M452 The module uses two user-set voltage parameters:

Start Voltage (SV) – Voltage at which the relay turns ON (charging starts) Stop Voltage (HV) – Voltage at which the relay turns OFF (charging stops) The XH-M452 is a 12V digital temperature and

Setting Procedure (Typical)

Press SET once → shows “SV” (start voltage) Press SET again → adjust value using UP/DOWN Press SET to confirm Repeat for HV (stop voltage)

Example for 12V Lead-Acid Battery:

Start (recovery charge): 11.8V – 12.0V Stop (full charge): 14.4V – 14.7V

Applications