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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

PM6C1KH-ALEJAAA — Watlow 1/16 DIN, Digital PID Controller and Limit, 4 Outputs, Universal Input, 100-240 VAC

Watlow

Watlow 1/16 DIN, Digital PID Controller and Limit, 4 Outputs, Universal Input, 100-240 VAC

SKU: PM6C1KH-ALEJAAA

Stock confirmed at order — usually ships from stock

$550.36

PM6C1KK-AAAAAAA — Watlow 1/16 DIN, Digital PID Controller, 2 SSR Outputs, Universal Input, 100-240 VAC

Watlow

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

SKU: PM6C1KK-AAAAAAA

Stock confirmed at order — usually ships from stock

$372.38

PM6C1KK-AAAABAA — Watlow 1/16 DIN, Digital PID Controller, SSR/SSR Outputs, Universal Input, 100-240 VAC

Watlow

Watlow 1/16 DIN, Digital PID Controller, SSR/SSR Outputs, Universal Input, 100-240 VAC

SKU: PM6C1KK-AAAABAA

Stock confirmed at order — usually ships from stock

$372.38

PM6C1KK-ALEJAAA — Watlow 1/16 DIN, Digital PID Controller and Limit, 2 SSR Outputs, Universal Input, 100-240 VAC

Watlow

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

SKU: PM6C1KK-ALEJAAA

Stock confirmed at order — usually ships from stock

$536.67

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

PM6R1EJ-AAAAAAA — Watlow 1/16 DIN, Ramp Soak PID Controller, 2 Relay Outputs, Universal Input, 100-240 VAC

Watlow

Watlow 1/16 DIN, Ramp Soak PID Controller, 2 Relay Outputs, Universal Input, 100-240 VAC

SKU: PM6R1EJ-AAAAAAA

Stock confirmed at order — usually ships from stock

$488.75

PM6R1EJ-AAEJAAA — Watlow 1/16 DIN, Ramp Soak PID Controller, 4 Relay Outputs, Universal Input, 100-240 VAC

Watlow

Watlow 1/16 DIN, Ramp Soak PID Controller, 4 Relay Outputs, Universal Input, 100-240 VAC

SKU: PM6R1EJ-AAEJAAA

Stock confirmed at order — usually ships from stock

$570.90

PM6R1FA-AAAAAAA — Watlow 1/16 DIN, Ramp Soak PID Controller, Process Output, Universal Input, 100-240 VAC

Watlow

Watlow 1/16 DIN, Ramp Soak PID Controller, Process Output, Universal Input, 100-240 VAC

SKU: PM6R1FA-AAAAAAA

Stock confirmed at order — usually ships from stock

$461.37

PM6R1FK-AAEJAAA — Watlow 1/16 DIN, Ramp Soak PID Controller, 4 Outputs, Universal Input, 100-240 VAC

Watlow

Watlow 1/16 DIN, Ramp Soak PID Controller, 4 Outputs, Universal Input, 100-240 VAC

SKU: PM6R1FK-AAEJAAA

Stock confirmed at order — usually ships from stock

$577.74

PM6R1KK-AAAAAAA — Watlow 1/16 DIN, Ramp Soak PID Controller, 2 SSR Outputs, Universal Input, 100-240 VAC

Watlow

Watlow 1/16 DIN, Ramp Soak PID Controller, 2 SSR Outputs, Universal Input, 100-240 VAC

SKU: PM6R1KK-AAAAAAA

Stock confirmed at order — usually ships from stock

$475.07

PM6R1KK-AAEJAAA — Watlow 1/16 DIN, Ramp Soak PID Controller, 4 Outputs, Universal Input, 100-240 VAC

Watlow

Watlow 1/16 DIN, Ramp Soak PID Controller, 4 Outputs, Universal Input, 100-240 VAC

SKU: PM6R1KK-AAEJAAA

Stock confirmed at order — usually ships from stock

$557.21

PM8C1EA-AAAAAAA — Watlow 1/8 DIN, Digital PID Controller, 1 Relay Output, Universal Input, 100-240 VAC

Watlow

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

SKU: PM8C1EA-AAAAAAA

Stock confirmed at order — usually ships from stock

$436.11

PM8C1EH-1AAAAAA — Watlow 1/8 DIN, Controller, 2 Outputs, Universal Input, 485 Modbus, 100-240 VAC

Watlow

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

SKU: PM8C1EH-1AAAAAA

Stock confirmed at order — usually ships from stock

$584.60

PM8C1EH-1AEJAAA — Watlow 1/8 DIN, Controller, 4 Outputs, Universal Input, 485 Modbus, 100-240 VAC

Watlow

Watlow 1/8 DIN, Controller, 4 Outputs, Universal Input, 485 Modbus, 100-240 VAC

SKU: PM8C1EH-1AEJAAA

Stock confirmed at order — usually ships from stock

$678.38

PM8C1EH-1LEJAAA — Watlow 1/8 DIN, Controller and Limit, 4 Outputs, Universal Input, 485 MODBUS, 100-240 VAC

Watlow

Watlow 1/8 DIN, Controller and Limit, 4 Outputs, Universal Input, 485 MODBUS, 100-240 VAC

SKU: PM8C1EH-1LEJAAA

Stock confirmed at order — usually ships from stock

$772.17

PM8C1EH-3AAAAAA — Watlow 1/8 DIN, Controller, 2 Outputs, Universal Input, EtherNet/IP, 100-240 VAC

Watlow

Watlow 1/8 DIN, Controller, 2 Outputs, Universal Input, EtherNet/IP, 100-240 VAC

SKU: PM8C1EH-3AAAAAA

Stock confirmed at order — usually ships from stock

$725.27

PM8C1EH-6AAAAAA — Watlow 1/8 DIN, Controller, 2 Outputs, Universal Input, PROFIBUS DP, 100-240 VAC

Watlow

Watlow 1/8 DIN, Controller, 2 Outputs, Universal Input, PROFIBUS DP, 100-240 VAC

SKU: PM8C1EH-6AAAAAA

Stock confirmed at order — usually ships from stock

$795.62

PM8C1EH-AAAAAAA — Watlow 1/8 DIN, Digital PID Controller, 2 Outputs, Universal Input, 100-240 VAC

Watlow

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

SKU: PM8C1EH-AAAAAAA

Stock confirmed at order — usually ships from stock

$490.81

PM8C1EH-AAEJAAA — Watlow 1/8 DIN, Digital PID Controller, 4 Outputs, Universal Input, 100-240 VAC

Watlow

Watlow 1/8 DIN, Digital PID Controller, 4 Outputs, Universal Input, 100-240 VAC

SKU: PM8C1EH-AAEJAAA

Stock confirmed at order — usually ships from stock

$584.60

PM8C1EH-ALEJAAA — Watlow 1/8 DIN, Digital PID Controller and Limit, 4 Outputs, Universal Input, 100-240 VAC

Watlow

Watlow 1/8 DIN, Digital PID Controller and Limit, 4 Outputs, Universal Input, 100-240 VAC

SKU: PM8C1EH-ALEJAAA

Stock confirmed at order — usually ships from stock

$678.38

PM8C1EJ-1AAAAAA — Watlow 1/8 DIN, Controller, 2 relay Outputs, Universal Input, 485 Modbus, 100-240 VAC

Watlow

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

SKU: PM8C1EJ-1AAAAAA

Stock confirmed at order — usually ships from stock

$576.79

PM8C1EJ-1AEJAAA — Watlow 1/8 DIN, Controller, 4 relay Outputs, Universal Input, 485 Modbus, 100-240 VAC

Watlow

Watlow 1/8 DIN, Controller, 4 relay Outputs, Universal Input, 485 Modbus, 100-240 VAC

SKU: PM8C1EJ-1AEJAAA

Stock confirmed at order — usually ships from stock

$670.57

PM8C1EJ-1LEJAAA — Watlow 1/8 DIN, Controller/Limit, 4 relay Outputs, Universal Input, 485 MODBUS, 100-240 VAC

Watlow

Watlow 1/8 DIN, Controller/Limit, 4 relay Outputs, Universal Input, 485 MODBUS, 100-240 VAC

SKU: PM8C1EJ-1LEJAAA

Stock confirmed at order — usually ships from stock

$764.36

PM8C1EJ-3AAAAAA — Watlow 1/8 DIN, Controller, 2 relay Outputs, Universal Input, EtherNet/IP, 100-240 VAC

Watlow

Watlow 1/8 DIN, Controller, 2 relay Outputs, Universal Input, EtherNet/IP, 100-240 VAC

SKU: PM8C1EJ-3AAAAAA

Stock confirmed at order — usually ships from stock

$717.46

PM8C1EJ-6AAAAAA — Watlow 1/8 DIN, Controller, 2 relay Outputs, Universal Input, PROFIBUS DP, 100-240 VAC

Watlow

Watlow 1/8 DIN, Controller, 2 relay Outputs, Universal Input, PROFIBUS DP, 100-240 VAC

SKU: PM8C1EJ-6AAAAAA

Stock confirmed at order — usually ships from stock

$787.80

PM8C1EJ-AAAAAAA — Watlow 1/8 DIN, Digital PID Controller, 2 relay Outputs, Universal Input, 100-240 VAC

Watlow

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

SKU: PM8C1EJ-AAAAAAA

Stock confirmed at order — usually ships from stock

$483.00

PM8C1EJ-AAEAAAA — Watlow 1/8 DIN, Digital PID Controller, 3 relay Outputs, Universal Input, 100-240 VAC

Watlow

Watlow 1/8 DIN, Digital PID Controller, 3 relay Outputs, Universal Input, 100-240 VAC

SKU: PM8C1EJ-AAEAAAA

Stock confirmed at order — usually ships from stock

$529.89

PM8C1EJ-AAECAAA — Watlow 1/8 DIN, Digital PID Controller, 4 Outputs, Universal Input, 100-240 VAC

Watlow

Watlow 1/8 DIN, Digital PID Controller, 4 Outputs, Universal Input, 100-240 VAC

SKU: PM8C1EJ-AAECAAA

Stock confirmed at order — usually ships from stock

$568.96

PM8C1EJ-AAEJAAA — Watlow 1/8 DIN, Digital PID Controller, 4 relay Outputs, Universal Input, 100-240 VAC

Watlow

Watlow 1/8 DIN, Digital PID Controller, 4 relay Outputs, Universal Input, 100-240 VAC

SKU: PM8C1EJ-AAEJAAA

Stock confirmed at order — usually ships from stock

$576.79

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.