PRODUCT DATA
DIMENSIONS
The following diagrams illustrate the dimensions for the different sensor mounting types:
Fig. 1. Duct Mount Model Dimensions in inches (mm).
A diagram illustrating the duct mount sensor, showing its approximate rectangular profile with mounting holes and key dimensions in inches and millimeters. The main body is approximately 4.0 inches (101 mm) wide and 4.4 inches (113 mm) high, with a depth of 2.1 inches (53 mm).
Fig. 2. Outdoor Model Dimensions in inches (mm).
A diagram illustrating the outdoor mount sensor, showing its enclosure, mounting bracket, and key dimensions in inches and millimeters. The main enclosure is approximately 4.4 inches (113 mm) wide and 4.7 inches (119 mm) high, with a depth of 2.1 inches (53 mm). The overall height including the mounting bracket can be up to 7.5 inches (190 mm).
Fig. 3. Wall Mount Model Dimensions in inches (mm).
A diagram illustrating the wall mount sensor, showing its low-profile, recessed design and key dimensions in inches and millimeters. The visible face is approximately 5.66 inches (143.8 mm) high and 3.00 inches (76.2 mm) wide, with a shallow depth of 0.36 inches (9.0 mm) and a mounting depth of 1.69 inches (42.9 mm).
FEATURES
- The wall sensors are designed to blend into any room space to provide accuracy for improved occupant comfort.
- Clean looking, low-profile, recessed design.
- Comparable accuracy, performance and features as included in duct sensors.
- Push-button field calibration – easy adjustment of relative humidity (RH) values.
Duct sensors provide interior HVAC zone humidity and temperature measurement and control. Outdoor sensors are designed to be mounted on the building exterior to provide outside air RH measurement.
All humidity sensors provide high accuracy:
- On-board temperature compensation for RH.
- Eliminates temperature coefficient errors and achieves an high measurement accuracy and high repeatability.
- NIST traceable 3-point calibration, optional duct version with calibration certificate.
APPLICATIONS
- HVAC room humidity and temperature measurement and control.
- Energy management/building control.
SPECIFICATIONS
Table 1. Models.
| Model | Humidity Accuracy | Thermistor Type | Mounting |
|---|---|---|---|
| H7726A2020 | 2% | 1097 Ohm | Wall |
| H7725A2010 | 2% | 20 kOhm | Wall |
| H7736A2022 | 3% | 1097 Ohm | Wall |
| H7735A2012 | 3% | 20 kOhm | Wall |
| H7725A2010-C | 2% NIST Certified | 20 kOhm | Wall |
| H7725B2006 | 2% | 20 kOhm | Duct |
| H7725B2006-C | 2% NIST Certified | 20 kOhm | Duct |
| H7726B2024 | 2% | 1097 Ohm | Duct |
| H7735B2018 | 3% | 20 kOhm | Duct |
| H7736B2026 | 3% | 1097 Ohm | Duct |
| H7735C2015 | 3% | 20 kOhm | Outdoor |
Table 2. Specifications.
| Parameter | Details |
|---|---|
| Power supply | AC Supply/DC Supply: 24VAC, 100mA max. / 12-30VDC, 50mA max. |
| Outputs | RH: 3-wire 0-5V/10V⁴, 3-wire or 2-wire 4-20mA (Selectable) |
| Output scaling RH | 0-100%RH |
| Thermistor/RTD resistance @ 25 °C | Nominal 20 kOhm / 1097 kOhm |
| Media filter | PBT with water vapor-permeable membrane |
| Accuracy | 2% models: ±2% max 0 to 100% RH, ±1.5% typ 0 to 80% RH @25°C |
| 3% models: ±3% max 0 to 100% RH, ±2% typ 0 to 100% RH @25°C | |
| Resolution | 0.01% RH |
| Hysteresis | ±0.8% RH |
| Repeatability | 0.08% RH |
| Relative Humidity Non-linearity | Factory linearized <1%RH |
| Relative Humidity Temperature coefficient | Fully compensated by on-board sensor |
| Response time ² | 8s |
| Output update | 0.5s |
| Operating range | 0 to 100% RH (non-condensing) |
| Long term drift | <0.25% RH per year |
| Operating conditions ³ | 41 to 140°F (5 to 60°C) @ 20-80% RH |
| Materials | ABS/Polycarbonate |
| Dimensions | Duct/Outdoor: 4.0"h x 4.4"w x 2.1"d |
| Dimensions (cont.) | Duct: (+6.8" probe) |
| Dimensions (cont.) | Outdoor: (+2.8" Solar Shield) |
| Dimensions (cont.) | Wall: 5.66"h x 3.00"w x 0.36"d (1.69" depth including recessed components) |
| Enclosure Rating | Wall/Duct: IP20/NEMA 1 Outdoor: IP20/NEMA 1 *Vent bottom of enclosure to achieve NEMA 3R Rating |
| Unit Temp Rating | -40°F to 158°F (-40 to 70°C) |
Notes:
- One side of transformer secondary is connected to signal common. Dedicated transformer is recommended.
- Time for reaching 63% of reading at 25 °C and 1 m/s air-flow.
- Long term exposures to conditions outside normal range or high humidity may temporarily offset the RH reading (+3%RH after 60 hours).
- 15-30 VDC/24VAC power supply voltage required for 10 volt output.
Honeywell Building Technologies
In the U.S.:
Honeywell
715 Peachtree Street NE
Atlanta, GA 30308
customer.honeywell.com
buildingcontrols.honeywell.com
U.S. Registered Trademark
2020 Honeywell International Inc.
31-00454-01 M.S. 11-20
Printed in United States
Building Automation
