Christmas Opening Hours and Delivery Dates here

B + B Thermo-Technik Thermal Sensor Duct immersion probe 616692

B+B Sensors Brand: B+B Sensors
The B+B Thermo-Technik parts are a range of duct probes designed to measure temperature and humidity, available with various output options and suitable for different environmental conditions.
Description Image Product Buy Pricing (Ex VAT) Humidity reading range (max.) Humidity reading range (min.) Type Temperature reading range Connector Temperature reading range (max.) Temperature reading range (min.)
B+B Thermo-Technik 0551 1120 Duct Immersion Probe Temp & Humidity
B+B Thermo-Technik 0551 1120 Duct Immersion Probe Temp & Humidity
Extended range
Order code: 01-3495
MPN: 0551 1120

Available to back order
1+ £73.39
Price per unit Ex VAT 		Duct immersion probe -40 up to +125 °C Screw terminals +125°C -40°C
B+B Thermo-Technik 0551 1121 Duct Probe Temp/Humidity Sensor 0-10V/4-20mA
B+B Thermo-Technik 0551 1121 Duct Probe Temp/Humidity Sensor 0-10V/4-20mA
Extended range
Order code: 01-3496
MPN: 0551 1121

2 available to back orderBack-order availability date - 10/01/2026
1+ £99.29
Price per unit Ex VAT 		Duct immersion probe -40 up to +125 °C Screw terminals +125°C -40°C
B+B Thermo-Technik 0551 1220 Duct Probe -40 to +125°C Temp/Humidity 0-10V/4-20mA
B+B Thermo-Technik 0551 1220 Duct Probe -40 to +125°C Temp/Humidity 0-10V/4-20mA
Extended range
Order code: 01-3504
MPN: 0551 1220

Available to back order
1+ £78.78
Price per unit Ex VAT 		Duct immersion probe -40 up to +125 °C Screw terminals +125°C -40°C
B+B Thermo-Technik 0551 1221 Duct Probe Precise 0-10V/4-20mA Output
B+B Thermo-Technik 0551 1221 Duct Probe Precise 0-10V/4-20mA Output
Extended range
Order code: 01-3505
MPN: 0551 1221

1 available to back orderBack-order availability date - 10/01/2026
1+ £104.68
Price per unit Ex VAT 		Duct immersion probe -40 up to +125 °C Screw terminals +125°C -40°C
B+B Thermo-Technik 0551 3120 Duct Immersion Probe -40°C to +125°C 0-100% RH
B+B Thermo-Technik 0551 3120 Duct Immersion Probe -40°C to +125°C 0-100% RH
Extended range
Order code: 01-3512
MPN: 0551 3120

5 available to back orderBack-order availability date - 10/01/2026
1+ £95.40
Price per unit Ex VAT 		100 RH 0 RH Duct immersion probe -40 up to +125 °C Screw terminals +125°C -40°C
B+B Thermo-Technik 0551 3121 Duct Probe Temp -40/+125°C Humidity 0-100 RH
B+B Thermo-Technik 0551 3121 Duct Probe Temp -40/+125°C Humidity 0-100 RH
Extended range
Order code: 01-3513
MPN: 0551 3121

1 available to back orderBack-order availability date - 10/01/2026
1+ £110.08
Price per unit Ex VAT 		100 RH 0 RH Duct immersion probe -40 up to +125 °C Screw terminals +125°C -40°C
B+B Thermo-Technik 0551 3220 Duct Immersion Probe Temp/RH Sensor -40 to +125°C
B+B Thermo-Technik 0551 3220 Duct Immersion Probe Temp/RH Sensor -40 to +125°C
Extended range
Order code: 01-3521
MPN: 0551 3220

3 available to back orderBack-order availability date - 10/01/2026
1+ £101.52
Price per unit Ex VAT 		100 RH 0 RH Duct immersion probe -40 up to +125 °C Screw terminals +125°C -40°C
B+B Thermo-Technik 0551 3221 Duct Immersion Probe 0-100 RH 0-10V/4-20mA
B+B Thermo-Technik 0551 3221 Duct Immersion Probe 0-100 RH 0-10V/4-20mA
Extended range
Order code: 01-3522
MPN: 0551 3221

2 available to back orderBack-order availability date - 10/01/2026
1+ £141.34
Price per unit Ex VAT 		100 RH 0 RH Duct immersion probe -40 up to +125 °C Screw terminals +125°C -40°C


Trustpilot