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Industrial Electrical & Process Components
Home/Catalog/Temperature & Process Controllers
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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.

308 products · showing 241–288
PM8C1FJ-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: PM8C1FJ-ALEJAAA
Stock confirmed at order — usually ships from stock
$579.91
PM8C1FK-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: PM8C1FK-AAAAAAA
Stock confirmed at order — usually ships from stock
$368.90
PM8C1FK-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: PM8C1FK-AAEJAAA
Stock confirmed at order — usually ships from stock
$478.31
PM8C1KH-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: PM8C1KH-AAAAAAA
Stock confirmed at order — usually ships from stock
$376.71
PM8C1KH-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: PM8C1KH-ALEJAAA
Stock confirmed at order — usually ships from stock
$564.28
PM8C1KK-AAAAAAA — Watlow 1/8 DIN, Digital PID Controller, 2 SSR Outputs, Universal Input, 100-240 VAC
Watlow

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

SKU: PM8C1KK-AAAAAAA
Stock confirmed at order — usually ships from stock
$361.08
PM8C1KK-ALEJAAA — Watlow 1/8 DIN, Digital PID Controller and Limit, 2 SSR Outputs, Universal Input, 100-240 VAC
Watlow

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

SKU: PM8C1KK-ALEJAAA
Stock confirmed at order — usually ships from stock
$548.65
PM8C4FJ-AAAAAAA — Watlow 1/8 DIN, Digital PID Controller, 2 Outputs, Universal Input, 24 AC/DC
Watlow

Watlow 1/8 DIN, Digital PID Controller, 2 Outputs, Universal Input, 24 AC/DC

SKU: PM8C4FJ-AAAAAAA
Stock confirmed at order — usually ships from stock
$392.34
PM8R1EJ-AAAAAAA — Watlow 1/8 DIN, Ramp Soak PID Controller, 2 Relay Outputs, Universal Input, 100-240 VAC
Watlow

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

SKU: PM8R1EJ-AAAAAAA
Stock confirmed at order — usually ships from stock
$600.23
PM8R1EJ-AAEJAAA — Watlow 1/8 DIN, Ramp Soak PID Controller, 4 Relay Outputs, Universal Input, 100-240 VAC
Watlow

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

SKU: PM8R1EJ-AAEJAAA
Stock confirmed at order — usually ships from stock
$694.01
PM8R1FA-AAAAAAA — Watlow 1/8 DIN, Ramp Soak PID Controller, Process Output, Universal Input, 100-240 VAC
Watlow

Watlow 1/8 DIN, Ramp Soak PID Controller, Process Output, Universal Input, 100-240 VAC

SKU: PM8R1FA-AAAAAAA
Stock confirmed at order — usually ships from stock
$462.68
PM8R1FK-AAEJAAA — Watlow 1/8 DIN, Ramp Soak PID Controller, 4 Outputs, Universal Input, 100-240 VAC
Watlow

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

SKU: PM8R1FK-AAEJAAA
Stock confirmed at order — usually ships from stock
$595.54
PM8R1KK-AAAAAAA — Watlow 1/8 DIN, Ramp Soak PID Controller, 2 SSR Outputs, Universal Input, 100-240 VAC
Watlow

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

SKU: PM8R1KK-AAAAAAA
Stock confirmed at order — usually ships from stock
$478.31
PM8R1KK-AAEJAAA — Watlow 1/8 DIN, Ramp Soak PID Controller, 4 Outputs, Universal Input, 100-240 VAC
Watlow

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

SKU: PM8R1KK-AAEJAAA
Stock confirmed at order — usually ships from stock
$572.10
PM9C1EA-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: PM9C1EA-AAAAAAA
Stock confirmed at order — usually ships from stock
$436.11
PM9C1EH-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: PM9C1EH-1AAAAAA
Stock confirmed at order — usually ships from stock
$584.60
PM9C1EH-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: PM9C1EH-1AEJAAA
Stock confirmed at order — usually ships from stock
$678.38
PM9C1EH-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: PM9C1EH-1LEJAAA
Stock confirmed at order — usually ships from stock
$772.17
PM9C1EH-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: PM9C1EH-3AAAAAA
Stock confirmed at order — usually ships from stock
$725.27
PM9C1EH-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: PM9C1EH-6AAAAAA
Stock confirmed at order — usually ships from stock
$795.62
PM9C1EH-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: PM9C1EH-AAAAAAA
Stock confirmed at order — usually ships from stock
$490.81
PM9C1EH-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: PM9C1EH-AAEJAAA
Stock confirmed at order — usually ships from stock
$584.60
PM9C1EH-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: PM9C1EH-ALEJAAA
Stock confirmed at order — usually ships from stock
$678.38
PM9C1EJ-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: PM9C1EJ-1AAAAAA
Stock confirmed at order — usually ships from stock
$576.79
PM9C1EJ-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: PM9C1EJ-1AEJAAA
Stock confirmed at order — usually ships from stock
$670.57
PM9C1EJ-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: PM9C1EJ-1LEJAAA
Stock confirmed at order — usually ships from stock
$764.36
PM9C1EJ-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: PM9C1EJ-3AAAAAA
Stock confirmed at order — usually ships from stock
$717.46
PM9C1EJ-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: PM9C1EJ-6AAAAAA
Stock confirmed at order — usually ships from stock
$787.80
PM9C1EJ-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: PM9C1EJ-AAAAAAA
Stock confirmed at order — usually ships from stock
$483.00
PM9C1EJ-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: PM9C1EJ-AAEAAAA
Stock confirmed at order — usually ships from stock
$529.89
PM9C1EJ-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: PM9C1EJ-AAECAAA
Stock confirmed at order — usually ships from stock
$568.96
PM9C1EJ-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: PM9C1EJ-AAEJAAA
Stock confirmed at order — usually ships from stock
$576.79
PM9C1EJ-AAEKAAA — 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: PM9C1EJ-AAEKAAA
Stock confirmed at order — usually ships from stock
$568.96
PM9C1EJ-ALEJAAA — Watlow 1/8 DIN, Digital PID Controller/Limit, 4 relay Outputs, Universal Input, 100-240 VAC
Watlow

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

SKU: PM9C1EJ-ALEJAAA
Stock confirmed at order — usually ships from stock
$670.57
PM9C1EK-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: PM9C1EK-1AAAAAA
Stock confirmed at order — usually ships from stock
$462.68
PM9C1EK-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: PM9C1EK-1AEJAAA
Stock confirmed at order — usually ships from stock
$556.47
PM9C1EK-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: PM9C1EK-1LEJAAA
Stock confirmed at order — usually ships from stock
$650.25
PM9C1EK-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: PM9C1EK-3AAAAAA
Stock confirmed at order — usually ships from stock
$603.36
PM9C1EK-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: PM9C1EK-6AAAAAA
Stock confirmed at order — usually ships from stock
$673.70
PM9C1EK-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: PM9C1EK-AAAAAAA
Stock confirmed at order — usually ships from stock
$475.18
PM9C1EK-AAEAAAA — Watlow 1/8 DIN, Digital PID Controller, 3 Outputs, Universal Input, 100-240 VAC
Watlow

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

SKU: PM9C1EK-AAEAAAA
Stock confirmed at order — usually ships from stock
$522.07
PM9C1EK-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: PM9C1EK-AAEJAAA
Stock confirmed at order — usually ships from stock
$462.68
PM9C1EK-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: PM9C1EK-ALEJAAA
Stock confirmed at order — usually ships from stock
$556.47
PM9C1FA-1AAAAAA — Watlow 1/8 DIN, Controller, Process Output, Universal Input, 485 Modbus, 100-240 VAC
Watlow

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

SKU: PM9C1FA-1AAAAAA
Stock confirmed at order — usually ships from stock
$439.23
PM9C1FA-1LEJAAA — Watlow 1/8 DIN, Controller and Limit, 3 Outputs, Universal Input, 485 MODBUS, 100-240 VAC
Watlow

Watlow 1/8 DIN, Controller and Limit, 3 Outputs, Universal Input, 485 MODBUS, 100-240 VAC

SKU: PM9C1FA-1LEJAAA
Stock confirmed at order — usually ships from stock
$626.80
PM9C1FA-3AAAAAA — Watlow 1/8 DIN, Controller, Process Output, Universal Input, EtherNet/IP, 100-240 VAC
Watlow

Watlow 1/8 DIN, Controller, Process Output, Universal Input, EtherNet/IP, 100-240 VAC

SKU: PM9C1FA-3AAAAAA
Stock confirmed at order — usually ships from stock
$579.91
PM9C1FA-6AAAAAA — Watlow 1/8 DIN, Controller, Process Output, Universal Input, PROFIBUS DP, 100-240 VAC
Watlow

Watlow 1/8 DIN, Controller, Process Output, Universal Input, PROFIBUS DP, 100-240 VAC

SKU: PM9C1FA-6AAAAAA
Stock confirmed at order — usually ships from stock
$650.25
PM9C1FA-AAAAAAA — Watlow 1/8 DIN, Digital PID Controller, Universal Process Output, Universal Input, 100-240 VAC
Watlow

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

SKU: PM9C1FA-AAAAAAA
Stock confirmed at order — usually ships from stock
$345.44
Authorized lines

Brands in Temperature & Process Controllers

Watlow logo — Anderson-Bolds is an authorized Watlow stocking distributor and manufacturer's representativeFenwal logo — Anderson-Bolds is an authorized Fenwal manufacturer's representativeBudzar logo — Anderson-Bolds is an authorized Budzar manufacturer's representativeNovus logo — Anderson-Bolds is an authorized Novus manufacturer's representative

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.