During technical comparisons, TK4M-B4RN appears alongside Sub Zero Temperature Controller, Autonics Proximity Sensor and Autonics Tk4S B4Cr so engineers assess signal types, ingress protection, and ambient tolerances accurately.
Autonics TK4M-B4RN Temperature Controller
The Autonics TK4M-B4RN Temperature Controller offers ON/OFF, P, PI, PD, PID control method, 100-240VAC~ 50/60Hz power supply, 4-digit 7-segment LED, 50ms. Manufactured by Autonics under the Autonics Temperature Controller category, this model belongs to the TK Series.

| Brand | Autonics |
| Product Type | Temperature Controller |
| Model Number | TK4M-B4RN |
Autonics TK4M-B4RN Temperature Controller – Technical Specifications
| Specification | Value |
|---|---|
| Power supply | 100-240VAC~ 50/60Hz |
| Sampling cycle | 50ms |
| Display method | 4-digit 7-segment LED |
| Control method | ON/OFF, P, PI, PD, PID |
| Proportional band | 0.1 to 999.9℃/℉(0.1 to 999.9%) |
| Integral time | 0 to 9999 sec |
| Derivative time | 0 to 9999 sec |
| Control period | Relay output, SSR drive output: 0.1 to 120.0 sec Current output or SSR drive output selectable: 1.0 to 120.0 sec |
| Manual reset | 0.0 to 100.0% |
| Environment_Ambient temperature | -10 to 50℃, storage: -20 to 60℃ |
| Environment_Ambient humidity | 35 to 85% RH, storage: 35 to 85% RH |
| Insulation type | Double insulation or reinforced insulation(mark: @(INS), dielectric strength between the measuring input part and the power part: 2kV) |
| Option input | CT, Digital(DI-1) |
| Protection structure | IP65(front panel) |
| Display accuracy_CT input | ±5% F.S. ±1-digit |
| Input specification | Thermocouple: K(CA), J(IC), E(CR), T(CC), B(PR), R(PR), S(PR), N(NN), C(TT), G(TT), L(IC), U(CC), Platinel IIRTD: DPt100Ω, DPt50Ω, JPt100Ω, Cu100Ω, Cu50Ω, Nikel 120ΩAnalog: 0-100mV, 0-5V, 1-5V, 0-10V0-20mA, 4-20mA |
| Option output | Alarm 1/2, RS485 comm. |
| Display accuracy_RTD | •At room temperature(23℃±5℃):(PV ±0.3% or ±1℃, select the higher one) ±1-digit•Out of room temperature:(PV ±0.5% or ±2℃, select the higher one) ±1-digit |
| Display accuracy_Thermocouple | •At room temperature(23℃±5℃):(PV ±0.3% or ±1℃, select the higher one) ±1-digit•Out of room temperature:(PV ±0.5% or ±2℃, select the higher one) ±1-digit |
| Hysteresis(adjustable sensitivity) | RTD/Thermocouples: 1 to 100℃/℉(0.1 to 100.0℃/℉) variable Analog: 1 to 100-digit |
| Control output 1 | Relay(250VAC~ 3A) |
| Display accuracy_Analog | •At room temperature(23℃±5℃): ±0.3% F.S. ±1-digit•Out of range of room temperature: ±0.5℃% F.S. ±1-digit |
| Control output 2 | - |
| Weight | Approx. 210g(approx. 140g) |
Built by Autonics, the TK4M-B4RN delivers fast, stable performance across varied control environments. This High Performance PID Temp Controller supports multiple input types, including thermocouples, RTDs, and analog signals, making it highly adaptable to diverse process setups. It operates on a wide input range of 100–240VAC~ 50/60Hz and features a fast sampling cycle of 50ms to maintain responsive control in dynamic systems.
Designed for accuracy, the TK4M-B4RN provides selectable control methods such as ON/OFF, P, PI, PD, and PID, with parameter options like proportional band and hysteresis. A bright 4-digit LED display ensures real-time visibility, while its IP65-rated front panel offers resistance against dust and water ingress. Engineers appreciate its RS485 communication and dual alarm outputs for system alerts and connectivity with PLCs or SCADA networks.
In field operations, engineers rely on its plug-and-play design and reliable signal processing. Whether deployed in new control cabinets or during legacy panel upgrades, the TK4M-B4RN ensures a smooth transition and minimal downtime. Panel integrators prefer it for its compact form factor, flexible input support, and simplified configuration interface.
With proven performance in harsh environments and trusted by OEMs across industries, the TK4M-B4RN continues to be a reliable solution for automation engineers, service technicians, and plant maintenance teams. For full specifications, documentation, and technical support, visit the Autonics Temperature Controller page on IndMALL.




