Belimo 22DTH-51MQ : Duct Humidity / Temperature Sensor, 2% Accuracy, RH Outputs: 0-5 VDC or 0-10 VDC, 20K Thermistor, UL Enclosure Type 4X/IP65
The Belimo 22DTH-51MQ is a duct-mounted sensor for high-accuracy monitoring of both humidity and temperature in HVAC systems. Boasting a 2% humidity accuracy and a wide measuring range (-30°F to 160°F, 0% to 100%RH), it ensures optimal climate control and energy efficiency. Its dual outputs (0-5V or 0-10V) and passive NTC 20k thermistor offer flexibility for integration with various building automation systems. The UL Enclosure Type 4X/IP65 rating guarantees reliable performance even in harsh environments.
Specifications
| Voltage AC/DC | AC/DC 24 V |
| Electrical Connection | Terminals |
| Measured Values | Temperature/Humidity |
| Output Signal | 0...5 V / 0...10 V / NTC20k |
| Measuring Range Humidity | 0...100% RH non-condensing |
| Measuring Range Temperature | -30...160°F [-35...70°C] |
| Output Voltage [Range] | 1 x 0...5 V, 0...10 V, min. resistance 10 kΩ |
| Output signal passive temperature | NTC20k |
| Output signal active note | Output 0...5/10 V with jumper adjustable |
| Probe Length | 5.5" [140 mm] |
Datasheets
 | Technical data sheet – Belimo 22DTH-51MQ |
| Installation Instructions for Belimo 22DTH Series |
| Belimo Sensor Brochure |
| Sensors Master Format - Consultant Specifications |
- Sensor Type:
- Duct
- Output Signal:
- 0-5 VDC or 0-10 VDC
- Temperature Element:
- 20K
- Supported Protocols:
- None
- Humidity Element:
- 2%
- CO2 Element:
- None
- Display:
- No Display
- Probe Length:
- 8
