The Drayton RF90T Digistat RF thermostat is a battery-powered wireless room thermostat supplied as an additional or replacement unit for the Drayton Digistat RF901 and RF902. It features a large backlit LCD and can be programmed from the thermostat itself or from the Wiser Home app over Bluetooth, with no Wi-Fi needed.
As a universal thermostat it runs as a 7-day, 5/2 day or 24-hour programmer or as a simple room thermostat, with optimised settings for gas, oil, heat pumps and electric heating. It is Boiler Plus compliant and can also be paired with an existing Drayton SCR receiver for single-channel use.
Bluetooth
Wiser Home app, no Wi-Fi
2 x AA
Alkaline batteries
RF90T
Drayton part number
Thermostat only - receiver not included
The RF90T is the wireless thermostat (transmitter) only. It pairs with the RF901 or RF902 receiver and with existing Drayton SCR receivers for single-channel use. The receiver is not supplied with this item.
Radio range depends on the building
The typical range is 50m, but it is affected by the construction, density and number of walls between the thermostat and receiver.
Electrical safety
The receiver connects to 230V mains. The Digistat is designed for fixed wiring only, to comply with IET wiring regulations (BS 7671). Installation of the receiver must be carried out by a competent person.
Pairing a second thermostat to an RF902
Press and hold the left-hand button on the receiver for 3 seconds, then insert the batteries in the new thermostat to pair it.
Key Features
Bluetooth app control
Set and amend schedules, adjust temperature, use Boost and Timed Away mode from the Wiser Home app - no Wi-Fi required.
Universal programming
Use as a 7-day, 5/2 day, 24-hour programmable thermostat or a simple room thermostat, with 3 default programmes.
Smart start
Intelligent delayed start or optimum start and ON/OFF load compensation help comfort and efficiency.
Works with any heat source
Optimised settings for gas, oil, heat pumps and electric heating.
Easy to use
Large backlit LCD, recessed buttons needing minimal pressure, and optional audible feedback.
Installer features
Optional service interval mode with reminder, reduced comfort or off, reset by a 4-digit installer code.
Technical Specification
General
Brand
Drayton (Schneider Electric)
Product
Digistat RF thermostat (additional / spare)
Manufacturer part number
RF90T
Compatible with
Digistat RF901, Digistat RF902, existing Drayton SCR (single channel)
Programming modes
7-day, 5/2 day, 24-hour or simple room thermostat
Compliance feature
Boiler Plus compliant
Power and wireless
Power supply
2 x AA 1.5V alkaline batteries
Radio frequency
433.92 MHz
Radio signal range
50m typical
Bluetooth frequency
2402-2480 MHz
Max Bluetooth RF power
+10dBm
App
Wiser Home - Android 9 or higher, Apple iOS 12 or higher, Bluetooth 4.2 or higher
Environmental and approvals
Temperature range
5C to 30C
Operating temperature
0C to 40C
Storage temperature
-20C to 65C
Rated impulse voltage
4kV
Automatic action
100,000 cycles
Applied standards
EN 60730-1, EN 60730-2-7, EN 60730-2-9, ETSI EN 300 328, ETSI EN 301 489, EN IEC 63000
Directives
2014/53/EU Radio Equipment Directive, 2012/19/EU WEEE, 2011/65/EU RoHS
Sustainability
Green Premium product
In the box
Mounting
Desk stand and wall clip provided
Frequently Asked Questions
What does the RF90T work with?
It is the extra or replacement thermostat for the Digistat RF901 and RF902, and it can be paired with an existing Drayton SCR receiver for single-channel use.
Does it need Wi-Fi?
No. App control uses Bluetooth through the Wiser Home app, so no Wi-Fi is needed, and use of the app is optional.
Can I use it for a second heating zone?
Yes. It can be used in an RF902 dual-channel setup to give two separate heating zones, or heating and hot water control.
Does it work with heat pumps and electric heating?
The Digistat has optimised settings for gas, oil, heat pumps and electric heating. The switching itself is carried out by the receiver.
What batteries does it use and what is the range?
It runs on 2 x AA 1.5V alkaline batteries and has a typical radio range of 50m, depending on the walls in between.
How do I pair it to a receiver?
For an RF902, press and hold the left-hand button on the receiver for 3 seconds, then fit the batteries in the new thermostat.