Zhikong Electronics – Professional Building Automation Manufacturer

HT-U808

I/O Expansion Module Designed as an expansion module for the YK-1044, it can also serve as an I/O expansion module for compatible building automation controllers from other brands.

✅ Supports Modbus RTU

✅ 8 UI , 8 AO

✅ 24 VAC/DC Power Supply

✅ Supports Dry Contact, 0–10 V, and NTC 10K Inputs

✅ 0–10 VDC Analog Outputs

✅ ODM Supported

HT-UD808

I/O Expansion Module Designed as an expansion module for the YK-1044, it can also serve as an I/O expansion module for compatible building automation controllers from other brands.

✅ Supports Modbus RTU

✅ 8 UI , 8 BO

✅ 24 VAC/DC Power Supply

✅ Supports Dry Contact, 0–10 V, and NTC 10K Inputs

✅ 24 VAC/DC Binary Outputs

✅ ODM Supported

YK-T-FG/YK-T-SG

Temperature Sensor

✅ Measurement Range: -40 to 100 °C

✅ Output Signal: NTC 10K and Other Options

✅ Power Supply: Passive / No External Power Required

✅ Accuracy: ±0.3 °C @ 25 °C

✅ Mounting: Duct-mounted

✅ ODM Supported

YK-T-BG

Temperature Sensor

✅ Measurement Range: -40 to 100 °C

✅ Output Signal: NTC 10K and Other Options

✅ Power Supply: Passive / No External Power Required

✅ Accuracy: ±0.3 °C @ 25 °C

✅ Mounting: Indoor wall-mounted or ceiling-mounted

✅ ODM Supported

YK-T-KT

Temperature Sensor

✅ Measurement Range: -40 to 100 °C

✅ Output Signal: NTC 10K and Other Options

✅ Power Supply: Passive / No External Power Required

✅ Accuracy: ±0.3 °C @ 25 °C

✅ Cable Length: Customizable

✅ ODM Supported

YK-TH-FG

Temperature & Humidity Transmitter

✅ Measurement Range: -40 to 100 °C / 0 to 100% RH

✅ Output Signal: NTC 10K/0–10 V / 4–20 mA and Other Options

✅ Power Supply: 24 VAC/VDC

✅ Accuracy: ±0.3℃@25℃/±3%RH

✅ Mounting: Duct-mounted

✅ ODM Supported

YK-TH-BG

Temperature & Humidity Transmitter

✅ Measurement Range: -40 to 100 °C / 0 to 100% RH

✅ Output Signal: NTC 10K/0–10 V / 4–20 mA and Other Options

✅ Power Supply: 24 VAC/VDC

✅ Accuracy: ±0.3℃@25℃/±3%RH

✅ Mounting: Indoor wall-mounted or ceiling-mounted

✅ ODM Supported

YK-TH-BGSW

Outdoor Temperature & Humidity Transmitter

✅ Measurement Range: -40 to 100 °C / 0 to 100% RH

✅ Output Signal: NTC 10K/0–10 V / 4–20 mA and Other Options

✅ Power Supply: 24 VAC/VDC

✅ Accuracy: ±0.3℃@25℃/±3%RH

✅ Mounting: Indoor wall-mounted

✅ ODM Supported

YK-CO-BG

Carbon Monoxide (CO) Transmitter

✅ Measurement Range: 0–100 ppm (Standard); 250 ppm, 300 ppm, and 400 ppm full-scale ranges available upon request

✅ Output Signal: 3-wire DC; selectable 0–10 V or 4–20 mA output and Other Options

✅ Power Supply: 24 VAC/VDC

✅ Accuracy: ±40 ppm or ±3% of reading

✅ Mounting: Indoor wall-mounted or ceiling-mounted

✅ ODM Supported

YK-CO-BG Resources

YK-CO2-FG

Carbon Dioxide (CO₂) Transmitter

✅ Measurement Range: 0–2000 ppm (Standard); 0–5000 ppm or other ranges optional

✅ Output Signal: Selectable 0–10 V or 4–20 mA and Other Options

✅ Power Supply: 24 VAC/VDC

✅ Accuracy: ±40 ppm or ±3% of reading

✅ Mounting: Duct-mounted

✅ ODM Supported

YK-CO2-FG Resources

YK-CO2-BG

Carbon Dioxide (CO₂) Transmitter

✅ Measurement Range: 0–2000 ppm (Standard); 0–5000 ppm or other ranges optional

✅ Output Signal: Selectable 0–10 V or 4–20 mA and Other Options

✅ Power Supply: 24 VAC/VDC

✅ Accuracy: ±40 ppm or ±3% of reading

✅ Mounting: Indoor wall-mounted or ceiling-mounted

✅ ODM Supported

YK-CO2-BG Resources

YK-AIR

Air Quality Transmitter

✅ TVOC Air Quality Transmitter

✅ Formaldehyde (HCHO) Transmitter

✅ Oxygen (O₂) Concentration Transmitter

✅ Hydrogen Sulfide (H₂S) and Ammonia (NH₃) Transmitter

✅ PM2.5 / PM10 Transmitter

✅ Ozone (O₃) Concentration Transmitter

✅ ODM Supported

YK-CO-BG Resources

YK-WS-FG

Air Velocity Transmitter

✅ Measurement Range: 0–10 m/s, 0–15 m/s, or 0–20 m/s (Optional)

✅ Output Signal: 0–10 V or 4–20 mA , Selectable via Jumper

✅ Power Supply: 24 VAC/VDC

✅ Accuracy: ±0.2 m/s Max

✅ Mounting: Duct-mounted

✅ ODM Supported

YK-CO2-FG Resources

YK-DPYC-25Pa

Low Differential Pressure Transmitter

✅ Measurement Range: 25–1250 Pa, 0–2 kPa, 0–5 kPa, or 0–10 kPa (Optional)

✅ Output Signal: 4–20 mA or 0–10 V , Selectable via Jumper

✅ Power Supply: 24 VAC/VDC

✅ Accuracy: ±1% FS

✅ Mounting: Indoor wall-mounted

✅ ODM Supported

YK-CO2-BG Resources

YK-YC-50Pa

Differential Pressure Switch

✅ Adjustable Setpoint Range: 20–300 Pa / 50–500 Pa

✅ Output Signal: Dry Contact Output

✅ Power Supply: Passive / No External Power Required

✅ Switching Differential: 10 Pa / 20 Pa

✅ Mounting: Indoor wall-mounted

✅ ODM Supported

YK-FD-3M

Freeze Protection Thermostat

✅ Temperature Setting Range: 1.0–7.5 °C

✅ Output Signal: Dry Contact Output

✅ Power Supply: Passive / No External Power Required

✅ Temperature Differential: 4.5–5.5 °C

✅ Mounting: Indoor wall-mounted

✅ ODM Supported

YK-ZD-BG

Illuminance Transmitter

✅ Measurement Range: 1–65,535 lux / 0–10,000 lux

✅ Output Signal: Selectable 0–10 V or 4–20 mA and Other Options

✅ Power Supply: 24 VAC/DC

✅ Accuracy: ±5% at 25 °C

✅ Mounting: Indoor wall-mounted

✅ ODM Supported

YK-DP-16bar

Water Differential Pressure Transmitter

✅ Measurement Range: 0–10 bar

✅ Output Signal: 4–20 mA (2-Wire)

✅ Power Supply: 24 VDC

✅ Accuracy: ≤ ±0.5% FS (Including Non-Linearity, Hysteresis, and Non-Repeatability)

✅ Process Connection: 1/4″ NPT Thread

✅ ODM Supported

YK-P-16bar

Water Pressure Transmitter

✅ Measurement Range: 0–16 bar

✅ Output Signal: 4–20 mA (2-Wire)

✅ Power Supply: 24 VDC

✅ Accuracy: ≤ ±0.5% FS (Including Non-Linearity, Hysteresis, and Non-Repeatability)

✅ Process Connection: 1/4″ NPT Thread

✅ ODM Supported

YK-MAC3

Level Switch

✅ Switch Type: SPDT, 10(8) A / 250 V

✅ Electrical Connection: 3 m Cable

✅ Switching Angle: ±45°

✅ Maximum Pressure: 1 bar

✅ Dimensions: 106 × 154 × 54 mm

✅ ODM Supported

YK-WFS

Water Flow Switch

✅ Switch Type: Paddle Type (Stainless Steel)

✅ Switching Output: SPDT

✅ Working Pressure: 1000 kPa (10 kgf/cm²)

✅ Proof Pressure: 2000 kPa (20 kgf/cm²)

✅ Fluid Temperature: 100 °C Max.

✅ Dielectric Strength: 1500 VAC for 1 Minute

✅ Mechanical Life: 500,000 Cycles

✅ ODM Supported

YK-LL-CSB

Clamp-On Ultrasonic Flow Meter

✅ Flow Velocity Range: 0 to ±10 m/s

✅ Output Signal: 4–20 mA and Other Options

✅ Power Supply: 24 VDC

✅ Pipe Size: DN50–700 (Standard Type), DN15–100 (Small Type), Optional Range up to DN15–6000

✅ Recommended Installation: 10D Upstream, 5D Downstream, and 30D from the Pump Outlet, where D is the Pipe Diameter

✅ ODM Supported

YK-16N-A/B

Damper Actuator

✅ Output Torque: 2~32NM

✅ Supply Voltage: 24 VAC/DC or 220 VAC

✅ Rotation Angle: 90° + (0–2°)

✅ Control Signal: On/Off or Analog

✅ On/Off Control: Single-Wire or Two-Wire

✅ Analog Control Signal: 0–10 V, 2–10 V, or 4–20 mA

✅ Analog Feedback Signal: 0–10 V, 2–10 V, or 4–20 mA

✅ ODM Supported