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Temperature & Process Controllers

PID and limit controllers, process controllers, and SCR power controllers for precise heat and process control.

Anderson-Bolds supplies temperature and process controllers from Watlow, Fenwal, and Novus — PID process controllers, FM-approved limit controllers, and SCR power controllers. We can pair a controller with the matching Watlow heater and sensor so the loop is sized and tuned together.

All Temperature & Process Controllers PID / Process Limit / Safety Power (SCR) Controllers

PM4C4FA-3AAAAAA — Watlow 1/4 DIN, Controller, Process Output, Universal Input, EtherNet/IP, 24V AC/DC

Watlow

Watlow 1/4 DIN, Controller, Process Output, Universal Input, EtherNet/IP, 24V AC/DC

SKU: PM4C4FA-3AAAAAA

Stock confirmed at order — usually ships from stock

$763.22

PM4C4FA-6AAAAAA — Watlow 1/4 DIN, Controller, Process Output, Universal Input, PROFIBUS DP, 24V AC/DC

Watlow

Watlow 1/4 DIN, Controller, Process Output, Universal Input, PROFIBUS DP, 24V AC/DC

SKU: PM4C4FA-6AAAAAA

Stock confirmed at order — usually ships from stock

$835.99

PM4C4FA-AAAAAAA — Watlow 1/4 DIN, Digital PID Controller, Universal Process Output, Universal Input, 24V AC/DC

Watlow

Watlow 1/4 DIN, Digital PID Controller, Universal Process Output, Universal Input, 24V AC/DC

SKU: PM4C4FA-AAAAAAA

Stock confirmed at order — usually ships from stock

$520.67

PM4C4FA-ALEJAAA — Watlow 1/4 DIN, Digital PID Controller and Limit, 3 Outputs, Universal Input, 24V AC/DC

Watlow

Watlow 1/4 DIN, Digital PID Controller and Limit, 3 Outputs, Universal Input, 24V AC/DC

SKU: PM4C4FA-ALEJAAA

Stock confirmed at order — usually ships from stock

$714.71

PM4C4FJ-1AAAAAA — Watlow 1/4 DIN, Controller, 2 Outputs, Universal Input, 485 Modbus, 24V AC/DC

Watlow

Watlow 1/4 DIN, Controller, 2 Outputs, Universal Input, 485 Modbus, 24V AC/DC

SKU: PM4C4FJ-1AAAAAA

Stock confirmed at order — usually ships from stock

$666.20

PM4C4FJ-1AEJAAA — Watlow 1/4 DIN, Controller, 4 Outputs, Universal Input, 485 Modbus, 24V AC/DC

Watlow

Watlow 1/4 DIN, Controller, 4 Outputs, Universal Input, 485 Modbus, 24V AC/DC

SKU: PM4C4FJ-1AEJAAA

Stock confirmed at order — usually ships from stock

$763.22

PM4C4FJ-1LEJAAA — Watlow 1/4 DIN, Controller and Limit, 4 Outputs, Universal Input, 485 MODBUS, 24V AC/DC

Watlow

Watlow 1/4 DIN, Controller and Limit, 4 Outputs, Universal Input, 485 MODBUS, 24V AC/DC

SKU: PM4C4FJ-1LEJAAA

Stock confirmed at order — usually ships from stock

$860.24

PM4C4FJ-3AAAAAA — Watlow 1/4 DIN, Controller, 2 Outputs, Universal Input, EtherNet/IP, 24V AC/DC

Watlow

Watlow 1/4 DIN, Controller, 2 Outputs, Universal Input, EtherNet/IP, 24V AC/DC

SKU: PM4C4FJ-3AAAAAA

Stock confirmed at order — usually ships from stock

$811.73

PM4C4FJ-6AAAAAA — Watlow 1/4 DIN, Controller, Process Output, Universal Input, PROFIBUS DP, 24V AC/DC

Watlow

Watlow 1/4 DIN, Controller, Process Output, Universal Input, PROFIBUS DP, 24V AC/DC

SKU: PM4C4FJ-6AAAAAA

Stock confirmed at order — usually ships from stock

$884.50

PM4C4FJ-AAAAAAA — Watlow 1/4 DIN, Digital PID Controller, 2 Outputs, Universal Input, 24V AC/DC

Watlow

Watlow 1/4 DIN, Digital PID Controller, 2 Outputs, Universal Input, 24V AC/DC

SKU: PM4C4FJ-AAAAAAA

Stock confirmed at order — usually ships from stock

$569.18

PM4C4FJ-ALEJAAA — Watlow 1/4 DIN, Digital PID Controller and Limit, 4 Outputs, Universal Input, 24V AC/DC

Watlow

Watlow 1/4 DIN, Digital PID Controller and Limit, 4 Outputs, Universal Input, 24V AC/DC

SKU: PM4C4FJ-ALEJAAA

Stock confirmed at order — usually ships from stock

$763.22

PM4C4FK-AAAAAAA — Watlow 1/4 DIN, Digital PID Controller, 2 Outputs, Universal Input, 24V AC/DC

Watlow

Watlow 1/4 DIN, Digital PID Controller, 2 Outputs, Universal Input, 24V AC/DC

SKU: PM4C4FK-AAAAAAA

Stock confirmed at order — usually ships from stock

$561.10

PM4C4FK-AAEJAAA — Watlow 1/4 DIN, Digital PID Controller, 4 Outputs, Universal Input, 24V AC/DC

Watlow

Watlow 1/4 DIN, Digital PID Controller, 4 Outputs, Universal Input, 24V AC/DC

SKU: PM4C4FK-AAEJAAA

Stock confirmed at order — usually ships from stock

$658.12

PM4C4KH-AAAAAAA — Watlow 1/4 DIN, Digital PID Controller, 2 Outputs, Universal Input, 24V AC/DC

Watlow

Watlow 1/4 DIN, Digital PID Controller, 2 Outputs, Universal Input, 24V AC/DC

SKU: PM4C4KH-AAAAAAA

Stock confirmed at order — usually ships from stock

$553.01

PM4C4KH-ALEJAAA — Watlow 1/4 DIN, Digital PID Controller and Limit, 4 Outputs, Universal Input, 24V AC/DC

Watlow

Watlow 1/4 DIN, Digital PID Controller and Limit, 4 Outputs, Universal Input, 24V AC/DC

SKU: PM4C4KH-ALEJAAA

Stock confirmed at order — usually ships from stock

$747.05

PM4C4KK-AAAAAAA — Watlow 1/4 DIN, Digital PID Controller, 2 SSR Outputs, Universal Input, 24V AC/DC

Watlow

Watlow 1/4 DIN, Digital PID Controller, 2 SSR Outputs, Universal Input, 24V AC/DC

SKU: PM4C4KK-AAAAAAA

Stock confirmed at order — usually ships from stock

$536.84

PM4C4KK-ALEJAAA — Watlow 1/4 DIN, Digital PID Controller and Limit, 2 SSR Outputs, Universal Input, 24V AC/DC

Watlow

Watlow 1/4 DIN, Digital PID Controller and Limit, 2 SSR Outputs, Universal Input, 24V AC/DC

SKU: PM4C4KK-ALEJAAA

Stock confirmed at order — usually ships from stock

$730.88

PM4L1AJ-1AAAAAA — Watlow 1/4 DIN, Limit Controller, 1 Relay Output, Universal Input, 485 Modbus, 100-240 VAC

Watlow

Watlow 1/4 DIN, Limit Controller, 1 Relay Output, Universal Input, 485 Modbus, 100-240 VAC

SKU: PM4L1AJ-1AAAAAA

Stock confirmed at order — usually ships from stock

$601.03

PM4L1AJ-AAAAAAA — Watlow 1/4 DIN, Digital Limit Controller, 1 Relay Output, Universal Input, 100-240 VAC

Watlow

Watlow 1/4 DIN, Digital Limit Controller, 1 Relay Output, Universal Input, 100-240 VAC

SKU: PM4L1AJ-AAAAAAA

Stock confirmed at order — usually ships from stock

$504.10

PM4L1CJ-1AAAAAA — Watlow 1/4 DIN, Limit Controller, 2 Outputs, Universal Input, 485 Modbus, 100-240 VAC

Watlow

Watlow 1/4 DIN, Limit Controller, 2 Outputs, Universal Input, 485 Modbus, 100-240 VAC

SKU: PM4L1CJ-1AAAAAA

Stock confirmed at order — usually ships from stock

$641.42

PM4L1CJ-AAAAAAA — Watlow 1/4 DIN, Digital Limit Controller, 2 Outputs, Universal Input, 100-240 VAC

Watlow

Watlow 1/4 DIN, Digital Limit Controller, 2 Outputs, Universal Input, 100-240 VAC

SKU: PM4L1CJ-AAAAAAA

Stock confirmed at order — usually ships from stock

$544.49

PM4L1EJ-1AAAAAA — Watlow 1/4 DIN, Limit Controller, 2 relay Outputs, Universal Input, 485 Modbus, 100-240 VAC

Watlow

Watlow 1/4 DIN, Limit Controller, 2 relay Outputs, Universal Input, 485 Modbus, 100-240 VAC

SKU: PM4L1EJ-1AAAAAA

Stock confirmed at order — usually ships from stock

$649.51

PM4L1EJ-AAAAAAA — Watlow 1/4 DIN, Digital Limit Controller, 2 relay Outputs, Universal Input, 100-240 VAC

Watlow

Watlow 1/4 DIN, Digital Limit Controller, 2 relay Outputs, Universal Input, 100-240 VAC

SKU: PM4L1EJ-AAAAAAA

Stock confirmed at order — usually ships from stock

$552.56

PM4L3AJ-1AAAAAA — Watlow 1/4 DIN, Limit Controller, 1 Relay Output, Universal Input, 485 Modbus, 24v AC/DC

Watlow

Watlow 1/4 DIN, Limit Controller, 1 Relay Output, Universal Input, 485 Modbus, 24v AC/DC

SKU: PM4L3AJ-1AAAAAA

Stock confirmed at order — usually ships from stock

$802.99

PM4L3AJ-AAAAAAA — Watlow 1/4 DIN, Digital Limit Controller, 1 Relay Output, Universal Input, 24v AC/DC

Watlow

Watlow 1/4 DIN, Digital Limit Controller, 1 Relay Output, Universal Input, 24v AC/DC

SKU: PM4L3AJ-AAAAAAA

Stock confirmed at order — usually ships from stock

$560.64

PM4L3CJ-1AAAAAA — Watlow 1/4 DIN, Limit Controller, 2 Outputs, Universal Input, 485 Modbus, 24v AC/DC

Watlow

Watlow 1/4 DIN, Limit Controller, 2 Outputs, Universal Input, 485 Modbus, 24v AC/DC

SKU: PM4L3CJ-1AAAAAA

Stock confirmed at order — usually ships from stock

$697.97

PM4L3CJ-AAAAAAA — Watlow 1/4 DIN, Digital Limit Controller, 2 Outputs, Universal Input, 24v AC/DC

Watlow

Watlow 1/4 DIN, Digital Limit Controller, 2 Outputs, Universal Input, 24v AC/DC

SKU: PM4L3CJ-AAAAAAA

Stock confirmed at order — usually ships from stock

$601.03

PM4L3EJ-1AAAAAA — Watlow 1/4 DIN, Limit Controller, 2 relay Outputs, Universal Input, 485 Modbus, 24v AC/DC

Watlow

Watlow 1/4 DIN, Limit Controller, 2 relay Outputs, Universal Input, 485 Modbus, 24v AC/DC

SKU: PM4L3EJ-1AAAAAA

Stock confirmed at order — usually ships from stock

$649.51

PM4L3EJ-AAAAAAA — Watlow 1/4 DIN, Digital Limit Controller, 2 relay Outputs, Universal Input, 24v AC/DC

Watlow

Watlow 1/4 DIN, Digital Limit Controller, 2 relay Outputs, Universal Input, 24v AC/DC

SKU: PM4L3EJ-AAAAAAA

Stock confirmed at order — usually ships from stock

$609.11

PM4M1EJ-AAAAAAA — Watlow 1/4 DIN, Digital Limit Controller, 2 relay Outputs, Thermistor Input, 100-240 VAC

Watlow

Watlow 1/4 DIN, Digital Limit Controller, 2 relay Outputs, Thermistor Input, 100-240 VAC

SKU: PM4M1EJ-AAAAAAA

Stock confirmed at order — usually ships from stock

$552.56

PM4M3EJ-AAAAAAA — Watlow 1/4 DIN, Digital Limit Controller, 2 relay Outputs, Thermistor Input, 24v AC/DC

Watlow

Watlow 1/4 DIN, Digital Limit Controller, 2 relay Outputs, Thermistor Input, 24v AC/DC

SKU: PM4M3EJ-AAAAAAA

Stock confirmed at order — usually ships from stock

$552.56

PM4R1EJ-AAAAAAA — Watlow 1/4 DIN, Ramp Soak PID Controller, 2 Relay Outputs, Universal Input, 100-240 VAC

Watlow

Watlow 1/4 DIN, Ramp Soak PID Controller, 2 Relay Outputs, Universal Input, 100-240 VAC

SKU: PM4R1EJ-AAAAAAA

Stock confirmed at order — usually ships from stock

$674.29

PM4R1EJ-AAEJAAA — Watlow 1/4 DIN, Ramp Soak PID Controller, 4 Relay Outputs, Universal Input, 100-240 VAC

Watlow

Watlow 1/4 DIN, Ramp Soak PID Controller, 4 Relay Outputs, Universal Input, 100-240 VAC

SKU: PM4R1EJ-AAEJAAA

Stock confirmed at order — usually ships from stock

$771.31

PM4R1FA-AAAAAAA — Watlow 1/4 DIN, Ramp Soak PID Controller, Process Output, Universal Input, 100-240 VAC

Watlow

Watlow 1/4 DIN, Ramp Soak PID Controller, Process Output, Universal Input, 100-240 VAC

SKU: PM4R1FA-AAAAAAA

Stock confirmed at order — usually ships from stock

$641.95

PM4R1FK-AAEJAAA — Watlow 1/4 DIN, Ramp Soak PID Controller, 4 Outputs, Universal Input, 100-240 VAC

Watlow

Watlow 1/4 DIN, Ramp Soak PID Controller, 4 Outputs, Universal Input, 100-240 VAC

SKU: PM4R1FK-AAEJAAA

Stock confirmed at order — usually ships from stock

$795.56

PM4R1KK-AAAAAAA — Watlow 1/4 DIN, Ramp Soak PID Controller, 2 SSR Outputs, Universal Input, 100-240 VAC

Watlow

Watlow 1/4 DIN, Ramp Soak PID Controller, 2 SSR Outputs, Universal Input, 100-240 VAC

SKU: PM4R1KK-AAAAAAA

Stock confirmed at order — usually ships from stock

$658.12

PM4R1KK-AAEJAAA — Watlow 1/4 DIN, Ramp Soak PID Controller, 4 Outputs, Universal Input, 100-240 VAC

Watlow

Watlow 1/4 DIN, Ramp Soak PID Controller, 4 Outputs, Universal Input, 100-240 VAC

SKU: PM4R1KK-AAEJAAA

Stock confirmed at order — usually ships from stock

$755.14

PM4R4EJ-AAAAAAA — Watlow 1/4 DIN, Ramp Soak PID Controller, 2 Relay Outputs, Universal Input, 24V AC/DC

Watlow

Watlow 1/4 DIN, Ramp Soak PID Controller, 2 Relay Outputs, Universal Input, 24V AC/DC

SKU: PM4R4EJ-AAAAAAA

Stock confirmed at order — usually ships from stock

$674.29

PM4R4EJ-AAEJAAA — Watlow 1/4 DIN, Ramp Soak PID Controller, 4 Relay Outputs, Universal Input, 24V AC/DC

Watlow

Watlow 1/4 DIN, Ramp Soak PID Controller, 4 Relay Outputs, Universal Input, 24V AC/DC

SKU: PM4R4EJ-AAEJAAA

Stock confirmed at order — usually ships from stock

$771.31

PM4R4FA-AAAAAAA — Watlow 1/4 DIN, Ramp Soak PID Controller, Process Output, Universal Input, 24V AC/DC

Watlow

Watlow 1/4 DIN, Ramp Soak PID Controller, Process Output, Universal Input, 24V AC/DC

SKU: PM4R4FA-AAAAAAA

Stock confirmed at order — usually ships from stock

$641.95

PM4R4FK-AAEJAAA — Watlow 1/4 DIN, Ramp Soak PID Controller, 4 Outputs, Universal Input, 24V AC/DC

Watlow

Watlow 1/4 DIN, Ramp Soak PID Controller, 4 Outputs, Universal Input, 24V AC/DC

SKU: PM4R4FK-AAEJAAA

Stock confirmed at order — usually ships from stock

$795.56

PM4R4KK-AAAAAAA — Watlow 1/4 DIN, Ramp Soak PID Controller, 2 SSR Outputs, Universal Input, 24V AC/DC

Watlow

Watlow 1/4 DIN, Ramp Soak PID Controller, 2 SSR Outputs, Universal Input, 24V AC/DC

SKU: PM4R4KK-AAAAAAA

Stock confirmed at order — usually ships from stock

$658.12

PM4R4KK-AAEJAAA — Watlow 1/4 DIN, Ramp Soak PID Controller, 4 Outputs, Universal Input, 24V AC/DC

Watlow

Watlow 1/4 DIN, Ramp Soak PID Controller, 4 Outputs, Universal Input, 24V AC/DC

SKU: PM4R4KK-AAEJAAA

Stock confirmed at order — usually ships from stock

$755.14

PM6C1EA-AAAAAAA — Watlow 1/16 DIN, Digital PID Controller, 1 Relay Output, Universal Input, 100-240 VAC

Watlow

Watlow 1/16 DIN, Digital PID Controller, 1 Relay Output, Universal Input, 100-240 VAC

SKU: PM6C1EA-AAAAAAA

Stock confirmed at order — usually ships from stock

$345.00

PM6C1EA-AAAABAA — Watlow 1/16 DIN, Digital PID Controller, Relay Output, Universal Input, 100-240 VAC

Watlow

Watlow 1/16 DIN, Digital PID Controller, Relay Output, Universal Input, 100-240 VAC

SKU: PM6C1EA-AAAABAA

Stock confirmed at order — usually ships from stock

$345.00

PM6C1EH-1AAAAAA — Watlow 1/16 DIN, Controller, 2 Outputs, Universal Input, 485 Modbus, 100-240 VAC

Watlow

Watlow 1/16 DIN, Controller, 2 Outputs, Universal Input, 485 Modbus, 100-240 VAC

SKU: PM6C1EH-1AAAAAA

Stock confirmed at order — usually ships from stock

$475.07

PM6C1EH-1AEJAAA — Watlow 1/16 DIN, Controller, 4 Outputs, Universal Input, 485 Modbus, 100-240 VAC

Watlow

Watlow 1/16 DIN, Controller, 4 Outputs, Universal Input, 485 Modbus, 100-240 VAC

SKU: PM6C1EH-1AEJAAA

Stock confirmed at order — usually ships from stock

$557.21

Watlow PM6C1EH-1LEJAAA — OBSOLETE - Watlow 1/16 DIN, Controller and Limit, 4 Outputs, Universal Input,

Watlow

OBSOLETE - Watlow 1/16 DIN, Controller and Limit, 4 Outputs, Universal Input,

SKU: PM6C1EH-1LEJAAA

Stock confirmed at order — usually ships from stock

$889.89

Authorized lines

Brands in Temperature & Process Controllers

Temperature & Process Controllers — questions buyers ask

Do I need a separate limit controller?

For most heating systems, yes — a redundant high-limit controller with its own sensor protects against runaway if the primary control loop fails, and it's often required by code or insurers.