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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

LVC6RU01001000A — Watlow DIN-Rail Mount Limit Controller, Man. Reset, 8 amp Relay output, RTD, 120 VAC, 100-1000C

Watlow

Watlow DIN-Rail Mount Limit Controller, Man. Reset, 8 amp Relay output, RTD, 120 VAC, 100-1000C

SKU: LVC6RU01001000A

Stock confirmed at order — usually ships from stock

$239.12

LVC6RW00000100A — Watlow DIN-Rail Mount Limit Controller, Auto Reset, 8 amp Relay output, RTD, 120 VAC, 0-100C

Watlow

Watlow DIN-Rail Mount Limit Controller, Auto Reset, 8 amp Relay output, RTD, 120 VAC, 0-100C

SKU: LVC6RW00000100A

Stock confirmed at order — usually ships from stock

$239.12

LVC6RW01001000A — Watlow DIN-Rail Mount Limit Controller, Auto Reset, 8 amp Relay output, RTD, 120 VAC, 100-1000C

Watlow

Watlow DIN-Rail Mount Limit Controller, Auto Reset, 8 amp Relay output, RTD, 120 VAC, 100-1000C

SKU: LVC6RW01001000A

Stock confirmed at order — usually ships from stock

$239.12

PM3L1AJ-AAAABAA — Watlow 1/32 DIN, LIMIT Controller, Relay Output, Universal Input, 100-240 VAC

Watlow

Watlow 1/32 DIN, LIMIT Controller, Relay Output, Universal Input, 100-240 VAC

SKU: PM3L1AJ-AAAABAA

Stock confirmed at order — usually ships from stock

$340.91

PM3L1CJ-AAAABAA — Watlow 1/32 DIN, LIMIT Controller, DC/Relay Output, Universal Input, 100-240 VAC

Watlow

Watlow 1/32 DIN, LIMIT Controller, DC/Relay Output, Universal Input, 100-240 VAC

SKU: PM3L1CJ-AAAABAA

Stock confirmed at order — usually ships from stock

$381.30

PM3L1EJ-AAAABAA — Watlow 1/32 DIN, LIMIT Controller, Relay/Relay Output, Universal Input, 100-240 VAC

Watlow

Watlow 1/32 DIN, LIMIT Controller, Relay/Relay Output, Universal Input, 100-240 VAC

SKU: PM3L1EJ-AAAABAA

Stock confirmed at order — usually ships from stock

$389.38

PM3L3AJ-AAAABAA — Watlow 1/32 DIN, LIMIT Controller, Relay Output, Universal Input, 24v AC/DC

Watlow

Watlow 1/32 DIN, LIMIT Controller, Relay Output, Universal Input, 24v AC/DC

SKU: PM3L3AJ-AAAABAA

Stock confirmed at order — usually ships from stock

$340.91

PM3L3CJ-AAAABAA — Watlow 1/32 DIN, LIMIT Controller, DC/Relay Output, Universal Input, 24v AC/DC

Watlow

Watlow 1/32 DIN, LIMIT Controller, DC/Relay Output, Universal Input, 24v AC/DC

SKU: PM3L3CJ-AAAABAA

Stock confirmed at order — usually ships from stock

$381.30

PM3L3EJ-AAAABAA — Watlow 1/32 DIN, LIMIT Controller, Relay/Relay Output, Universal Input, 24v AC/DC

Watlow

Watlow 1/32 DIN, LIMIT Controller, Relay/Relay Output, Universal Input, 24v AC/DC

SKU: PM3L3EJ-AAAABAA

Stock confirmed at order — usually ships from stock

$389.38

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

PM6L1AJ-1AAAAAA — Watlow 1/16 DIN, Limit Controller, 1 Relay Output, Universal Input, 485 Modbus, 100-240 VAC

Watlow

Watlow 1/16 DIN, Limit Controller, 1 Relay Output, Universal Input, 485 Modbus, 100-240 VAC

SKU: PM6L1AJ-1AAAAAA

Stock confirmed at order — usually ships from stock

$437.84

PM6L1AJ-AAAAAAA — Watlow 1/16 DIN, Digital Limit Controller, 1 Relay Output, Universal Input, 100-240 VAC

Watlow

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

SKU: PM6L1AJ-AAAAAAA

Stock confirmed at order — usually ships from stock

$340.91

PM6L1AJ-AAAABAA — Watlow 1/16 DIN, LIMIT Controller, Relay Output, Universal Input, 100-240 VAC

Watlow

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

SKU: PM6L1AJ-AAAABAA

Stock confirmed at order — usually ships from stock

$340.91

PM6L1CJ-1AAAAAA — Watlow 1/16 DIN, Limit Controller, 2 Outputs, Universal Input, 485 Modbus, 100-240 VAC

Watlow

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

SKU: PM6L1CJ-1AAAAAA

Stock confirmed at order — usually ships from stock

$478.24

PM6L1CJ-AAAAAAA — Watlow 1/16 DIN, Digital Limit Controller, 2 Outputs, Universal Input, 100-240 VAC

Watlow

Watlow 1/16 DIN, Digital Limit Controller, 2 Outputs, Universal Input, 100-240 VAC

SKU: PM6L1CJ-AAAAAAA

Stock confirmed at order — usually ships from stock

$381.30

PM6L1CJ-AAAABAA — Watlow 1/16 DIN, LIMIT Controller, DC/Relay Output, Universal Input, 100-240 VAC

Watlow

Watlow 1/16 DIN, LIMIT Controller, DC/Relay Output, Universal Input, 100-240 VAC

SKU: PM6L1CJ-AAAABAA

Stock confirmed at order — usually ships from stock

$381.30

PM6L1EJ-1AAAAAA — Watlow 1/16 DIN, Limit Controller, 2 relay Outputs, Universal Input, 485 Modbus, 100-240 VAC

Watlow

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

SKU: PM6L1EJ-1AAAAAA

Stock confirmed at order — usually ships from stock

$486.32

PM6L1EJ-AAAAAAA — Watlow 1/16 DIN, Digital Limit Controller, 2 relay Outputs, Universal Input, 100-240 VAC

Watlow

Watlow 1/16 DIN, Digital Limit Controller, 2 relay Outputs, Universal Input, 100-240 VAC

SKU: PM6L1EJ-AAAAAAA

Stock confirmed at order — usually ships from stock

$389.38

PM6L1EJ-AAAABAA — Watlow 1/16 DIN, LIMIT Controller, Relay/Relay Output, Universal Input, 100-240 VAC

Watlow

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

SKU: PM6L1EJ-AAAABAA

Stock confirmed at order — usually ships from stock

$389.38

PM6L3AJ-1AAAAAA — Watlow 1/16 DIN, Limit Controller, 1 Relay Output, Universal Input, 485 Modbus, 24v AC/DC

Watlow

Watlow 1/16 DIN, Limit Controller, 1 Relay Output, Universal Input, 485 Modbus, 24v AC/DC

SKU: PM6L3AJ-1AAAAAA

Stock confirmed at order — usually ships from stock

$494.40

PM6L3AJ-AAAAAAA — Watlow 1/16 DIN, Digital Limit Controller, 1 Relay Output, Universal Input, 24v AC/DC

Watlow

Watlow 1/16 DIN, Digital Limit Controller, 1 Relay Output, Universal Input, 24v AC/DC

SKU: PM6L3AJ-AAAAAAA

Stock confirmed at order — usually ships from stock

$397.45

PM6L3AJ-AAAABAA — Watlow 1/16 DIN, LIMIT Controller, Relay Output, Universal Input, 24v AC/DC

Watlow

Watlow 1/16 DIN, LIMIT Controller, Relay Output, Universal Input, 24v AC/DC

SKU: PM6L3AJ-AAAABAA

Stock confirmed at order — usually ships from stock

$340.91

PM6L3CJ-1AAAAAA — Watlow 1/16 DIN, Limit Controller, 2 Outputs, Universal Input, 485 Modbus, 24v AC/DC

Watlow

Watlow 1/16 DIN, Limit Controller, 2 Outputs, Universal Input, 485 Modbus, 24v AC/DC

SKU: PM6L3CJ-1AAAAAA

Stock confirmed at order — usually ships from stock

$534.79

PM6L3CJ-AAAAAAA — Watlow 1/16 DIN, Digital Limit Controller, 2 Outputs, Universal Input, 24v AC/DC

Watlow

Watlow 1/16 DIN, Digital Limit Controller, 2 Outputs, Universal Input, 24v AC/DC

SKU: PM6L3CJ-AAAAAAA

Stock confirmed at order — usually ships from stock

$437.84

PM6L3CJ-AAAABAA — Watlow 1/16 DIN, LIMIT Controller, DC/Relay Output, Universal Input, 24v AC/DC

Watlow

Watlow 1/16 DIN, LIMIT Controller, DC/Relay Output, Universal Input, 24v AC/DC

SKU: PM6L3CJ-AAAABAA

Stock confirmed at order — usually ships from stock

$381.30

PM6L3EJ-1AAAAAA — Watlow 1/16 DIN, Limit Controller, 2 relay Outputs, Universal Input, 485 Modbus, 24v AC/DC

Watlow

Watlow 1/16 DIN, Limit Controller, 2 relay Outputs, Universal Input, 485 Modbus, 24v AC/DC

SKU: PM6L3EJ-1AAAAAA

Stock confirmed at order — usually ships from stock

$486.32

PM6L3EJ-AAAAAAA — Watlow 1/16 DIN, Digital Limit Controller, 2 relay Outputs, Universal Input, 24v AC/DC

Watlow

Watlow 1/16 DIN, Digital Limit Controller, 2 relay Outputs, Universal Input, 24v AC/DC

SKU: PM6L3EJ-AAAAAAA

Stock confirmed at order — usually ships from stock

$389.38

PM6L3EJ-AAAABAA — Watlow 1/16 DIN, LIMIT Controller, Relay/Relay Output, Universal Input, 24v AC/DC

Watlow

Watlow 1/16 DIN, LIMIT Controller, Relay/Relay Output, Universal Input, 24v AC/DC

SKU: PM6L3EJ-AAAABAA

Stock confirmed at order — usually ships from stock

$389.38

PM6M1EJ-AAAAAAA — Watlow 1/16 DIN, Digital Limit Controller, 2 relay Outputs, Thermistor Input, 100-240 VAC

Watlow

Watlow 1/16 DIN, Digital Limit Controller, 2 relay Outputs, Thermistor Input, 100-240 VAC

SKU: PM6M1EJ-AAAAAAA

Stock confirmed at order — usually ships from stock

$389.38

PM6M3EJ-AAAAAAA — Watlow 1/16 DIN, Digital Limit Controller, 2 relay Outputs, Thermistor Input, 24v AC/DC

Watlow

Watlow 1/16 DIN, Digital Limit Controller, 2 relay Outputs, Thermistor Input, 24v AC/DC

SKU: PM6M3EJ-AAAAAAA

Stock confirmed at order — usually ships from stock

$389.38

PM8L1AJ-1AAAAAA — Watlow 1/8 DIN, Limit Controller, 1 Relay Output, Universal Input, 485 Modbus, 100-240 VAC

Watlow

Watlow 1/8 DIN, Limit Controller, 1 Relay Output, Universal Input, 485 Modbus, 100-240 VAC

SKU: PM8L1AJ-1AAAAAA

Stock confirmed at order — usually ships from stock

$547.71

PM8L1AJ-AAAAAAA — Watlow 1/8 DIN, Digital Limit Controller, 1 Relay Output, Universal Input, 100-240 VAC

Watlow

Watlow 1/8 DIN, Digital Limit Controller, 1 Relay Output, Universal Input, 100-240 VAC

SKU: PM8L1AJ-AAAAAAA

Stock confirmed at order — usually ships from stock

$450.78

PM8L1CJ-1AAAAAA — Watlow 1/8 DIN, Limit Controller, 2 Outputs, Universal Input, 485 Modbus, 100-240 VAC

Watlow

Watlow 1/8 DIN, Limit Controller, 2 Outputs, Universal Input, 485 Modbus, 100-240 VAC

SKU: PM8L1CJ-1AAAAAA

Stock confirmed at order — usually ships from stock

$588.10

PM8L1CJ-AAAAAAA — Watlow 1/8 DIN, Digital Limit Controller, 2 Outputs, Universal Input, 100-240 VAC

Watlow

Watlow 1/8 DIN, Digital Limit Controller, 2 Outputs, Universal Input, 100-240 VAC

SKU: PM8L1CJ-AAAAAAA

Stock confirmed at order — usually ships from stock

$491.17

PM8L1EJ-1AAAAAA — Watlow 1/8 DIN, Limit Controller, 2 relay Outputs, Universal Input, 485 Modbus, 100-240 VAC

Watlow

Watlow 1/8 DIN, Limit Controller, 2 relay Outputs, Universal Input, 485 Modbus, 100-240 VAC

SKU: PM8L1EJ-1AAAAAA

Stock confirmed at order — usually ships from stock

$596.19

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.