Digital Heating Gas Boiler Thermostat
ST2602 is a battery powered programmable room thermostat for gas boiler systems that need fine daily control. It runs 7 day, 5/2 day and 24 hour modes with six time and six temperature steps per day, plus a manual override for one-off changes and a keypad lockout for shared spaces. Standby current is 30 uA with lighting current at 6 mA or less, which is what makes long battery life on 2 x AAA cells realistic.
Key Benefits
- Six steps per day match real occupancy better than a two-period programme
- 30 uA standby current keeps the unit running a long time on 2 x AAA cells
- Keypad lockout prevents unauthorised changes in corridors and shared rooms
- Manual override changes today without rewriting the programme
- Backlight in blue, green or white to match a building's control fit-out
Problems It Solves
- Two-period programmers that cannot follow a modern working pattern
- Batteries flattening within a season on power-hungry stats
- Settings changed by anyone passing a corridor thermostat
- Temporary changes that overwrite the stored schedule
Who It Is For
- Heating merchants supplying a programmable battery stat
- Building managers wanting occupant lockout
- Installers replacing two-period mechanical programmers
- OEM buyers needing a programmable model with documented current draw
Technical Features
- 7 day, 5/2 day and 24 hour programmable with 6 time and 6 temperature steps per day
- Manual override mode and keypad lockout
- Measuring range 0 C to 40 C in 0.1 C, setpoint range 5 C to 35 C in 0.5 C
- Display accuracy +/-1 C at 20 C
- Maximum load 6(2)A at 230V, standby current 30 uA, lighting current 6 mA or less
- HEAT / OFF / COOL system switch
- Power supply 2 x AAA 1.5V alkaline batteries
- Dimensions 130 x 86 x 29 mm, weight 0.25 kg, wall mounting
Specifications
| Model | ST2602 |
| Programmability | 7 Day, 5/2 Day and 24 hour Programmable |
| System Switch | HEAT/OFF/COOL |
| Power Supply | 2x AAA 1.5V Alkaline Battery |
| Maximum Load | 6(2)A, 230V Standby current 30uA, Lighting current ≤ 6mA |
| Temperature Range | 0°C~40°C (in 0.1°C increments) |
| Setpoint Range | 5°C~35°C (in 0.5°C increments) |
| Display accuracy | ±1°C (at 20°C) |
| Backlight | Blue/Green/white |
| Color | White |
| Dimension | 130 x 86 x 29 mm |
| Weight | 0.25kg |
| Installation | Wall Mounting |
| Standby current | 30uA, Lighting current ≤ 6mA |
| Type | Household/Industrial/Outdoor/Indoor/Other |
Specifications are taken from the manufacturer data for this model. Confirm the exact configuration with us before you order.
Application Scenarios
- Households with irregular daily patterns across the week
- Small offices with early and late occupancy periods
- Shared halls and community buildings needing lockout
- Indoor and outdoor rated installations on household or industrial heating
Quality Control
- Standby current measured on batch samples against the 30 uA figure
- Programme timing checked against a reference clock
- Contact tested at 6(2)A 230V before packing
Customisation Options
- Backlight fixed to blue, green or white
- Factory preset programme to the buyer's specification
- Front label and logo to the buyer's artwork
- Carton and barcode for retail or trade channels
How It Compares
Installing And Commissioning
Step 1
Fit 2 x AAA 1.5V alkaline batteries and set the clock and weekday
Step 2
Mount on the wall at about 1.5 m, clear of radiators and direct sun
Step 3
Land the switched conductor within the 6(2)A 230V contact rating
Step 4
Choose 7 day, 5/2 day or 24 hour mode and enter up to six steps for each day
Step 5
Enable keypad lockout in shared spaces before handover
Digital Heating Gas Boiler Thermostat: Buyer Questions
How many temperature changes per day can the ST2602 hold?
Six times and six temperatures per day, in 7 day, 5/2 day or 24 hour mode.
How long will the batteries last?
Standby current is 30 uA and lighting current is 6 mA or less, so a pair of AAA alkaline cells gives long service in normal use.
Can occupants be stopped from changing the setting?
Yes, with the keypad lockout. The display keeps working but the buttons are disabled.
What are the dimensions and weight?
130 x 86 x 29 mm and 0.25 kg.
Does a manual override cancel the programme?
No. Manual override changes the current period and the unit returns to the stored programme afterwards.
Can you preset our schedule before shipping?
Yes. Send us the daily steps you want and we will write them at the factory.
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View specificationQuote The Digital Heating Gas Boiler Thermostat
Send us the quantity, the destination market and any branding or firmware changes you need. Samples ship within 30 days and bulk orders in 15 to 45 days.