Smart Thermostat

One hub covering diesel/hydronic heating, lithium battery low-temperature protection, compressor cooling and refrigerator control. Stable PID operation, multiple independent relay outputs, remote temperature scheduling via Bluetooth APP.

Request a Quote
Smart Thermostat

Heating · Battery · Fridge — One Hub for the Whole Vehicle

RV temperature scenarios are more complex than at home: antifreeze protection for water lines in extreme cold, lithium battery protection at low temperatures, compressor heat dissipation in high heat. One multi-channel hub is simpler and more stable than three standalone thermostats.

Wide Temperature Range

-30 ~ +80℃

From northern extreme cold to plateau heat. Ships with 1–2 NTC probes, expandable to 4.

  • Measurement range -30℃ ~ +80℃
  • 1–2 NTC probes standard, expandable to 4
  • Operating temperature -20℃ ~ +70℃
  • DC 9–32V, 12V / 24V universal
PID Control

±0.5℃

PID automatically regulates heating and cooling outputs, avoiding the swings of on/off control — smoother water-line and battery-compartment temperatures.

  • ±0.5℃ control accuracy
  • Auto switching between heating / cooling logic
  • Adjustable hysteresis and delays reduce frequent cycling
  • Proactive push alerts on abnormal temperature
Multi-Channel + Bluetooth

2–4 Channels

Heater, circulation pump, fan and compressor cooling each get an independent channel. Optional 0–10V analog output for variable-speed devices.

  • 2–4 relay outputs (10A / 30VDC)
  • Optional 0–10V analog output
  • Bluetooth APP remote setup + scheduled curves
  • OTA updates keep improving control algorithms

Typical Configurations by Scenario

ScenarioRecommended Channels
Diesel / hydronic heatingHeater on/off ×1 + circulation pump ×1 (dual-channel model suffices)
Lithium battery low-temp protectionBattery-compartment heating film ×1, probe on battery surface, auto-engages at low temp
Compressor coolingCompressor on/off ×1 + condenser fan ×1, with start/stop delay protection
Refrigerator controlSingle relay output with hysteresis setting to control the compressor
Whole-vehicle consolidation4-channel model + multiple probes, all curves set in one APP
Specifications

Technical Parameters

Multiple display and communication configurations available — confirm the configuration before ordering.

ItemSpecification
Operating voltageDC 9–32V (12V / 24V universal)
Measurement range-30℃ ~ +80℃ (1–2 NTC standard, expandable to 4)
Control accuracy±0.5℃ (PID algorithm)
Output channels2–4 relays (10A / 30VDC), optional 0–10V analog output
Work modesHeating / Cooling / Auto / Schedule / Scene
DisplaySegmented LCD / TFT color panel (multiple models)
Operating temperature-20℃ ~ +70℃
MountingWall-mount 86-box / flush / panel type
Communications & APPSpecification
CommunicationBluetooth (standard), optional WiFi / CAN / RS485
Live monitoringCurrent temperature, setpoint, output channel states
Remote setupTarget temperature, hysteresis, start/stop delay, channel binding
Scheduled curvesAutomatic setpoint changes by time period
AlertsProactive push for over-temp / probe fault / output fault
OTA updatesCloud firmware push, continuous algorithm improvements
CustomizationOEM / ODM: panel logo, temperature points, probe count and protocol
Work Modes

Five Work Modes

Pick a mode per scenario — no need to retune parameters every time. Schedule and scene modes are ideal for long trips.

ModeLogic
HeatingStarts heating below setpoint; stops at setpoint
CoolingStarts cooling above setpoint; stops when reached
AutoJudges heating or cooling by current temperature — great for large day/night swings
ScheduleSwitches setpoints by time period, e.g. lower water temp at night
SceneMulti-channel combined actions — one tap switches "driving / parked / winter storage" configurations
±0.5℃
PID control accuracy
4 probes
Max NTC probe count
2–4 ch
Independent relay outputs
-30~+80℃
Measurement range
Control Logic & Installation

Control Logic & Installation Tips

The thermostat's logic is simple — real-world performance depends on probe placement, contact quality and output circuit design.

ConditionAction
Temp < setpoint − hysteresisStart the corresponding heating output
Temp ≥ setpointStop the heating output
Temp > setpoint + hysteresisStart the corresponding cooling output
Temp ≤ setpointStop the cooling output
Low vehicle voltageOptionally inhibit high-power heating to preserve battery capacity
Probe faultStop the associated output and push an alert — no runaway heating

Probe Placement Guide

PointInstallation
Water temperatureAttach to the tank or outlet pipe outer wall, cover with insulation, avoid wind exposure
Battery compartmentAttach to the middle side of the battery case, away from heating film and heat sources
Cabin temperatureMount 1.2–1.5m above floor, away from vents and direct sunlight
Refrigerator / freezerPlace mid-cabinet, away from the evaporator and door seals

Tip: probe extension wires introduce slight error — use the same-gauge shielded cable and waterproof the joints.

Not Sure How Many Channels You Need?

Send us your vehicle type and the equipment you need to control — we'll deliver a complete configuration list.

Get a Configuration List →