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Every terminal named — and less accurate than the same brand at half the price

riseem STN701W-Blue

A Wi-Fi single-stage wall thermostat with seven-day programming, requiring a C-wire and a 2.4 GHz network.

riseem WiFi smart thermostat with blue backlit LCD on a wall

riseem STN701W-Blue

A Wi-Fi single-stage wall thermostat with seven-day programming, requiring a C-wire and a 2.4 GHz network.

Type
Wall thermostat, wired to the HVAC system — not an outlet thermostat
Systems
Conventional single stage, 1 heat / 1 cool, gas oil or electric, plus air conditioning
C-wire
Required; cannot run on batteries
Terminals
RH, RC, W, Y, G, C. Does not support W2, Y2, O/B, E, L, AUX, ACC+, ACC−, S, X, X2
Not compatible with
2H/1C, 2H/2C, 3H/2C, 4H/2C multi-stage, heat pumps, heat-only, cool-only, 120–240 V line voltage, PTACs, mini splits, RV air conditioners
Wi-Fi
2.4 GHz only — stated twice
Programming
7 day, or none
Accuracy
Within 2 °F
Size
0.98 in D × 4.72 in W × 3.86 in H
Amazon reference
B0HK7QP8KC
EAN
0607607717210
  • Lists its supported and unsupported terminals by name, which no other thermostat on this shelf does
  • Publishes an accuracy figure and its own dimensions, both of which most of this shelf omits
  • C-wire required and no battery fallback at all — the most restrictive power requirement on this shelf

Best for: A single-stage forced-air system with a common wire, where seven-day programming matters more than a degree of accuracy

≈ $50
Check price on Amazon

Specifications

Type
Wall thermostat, wired to the HVAC system — not an outlet thermostat
Systems
Conventional single stage, 1 heat / 1 cool, gas oil or electric, plus air conditioning
C-wire
Required; cannot run on batteries
Terminals
RH, RC, W, Y, G, C. Does not support W2, Y2, O/B, E, L, AUX, ACC+, ACC−, S, X, X2
Not compatible with
2H/1C, 2H/2C, 3H/2C, 4H/2C multi-stage, heat pumps, heat-only, cool-only, 120–240 V line voltage, PTACs, mini splits, RV air conditioners
Wi-Fi
2.4 GHz only — stated twice
Programming
7 day, or none
Accuracy
Within 2 °F
Size
0.98 in D × 4.72 in W × 3.86 in H
Amazon reference
B0HK7QP8KC
EAN
0607607717210

What the maker puts in writing

  • Single stage, 1 heat / 1 cool · C-wire required, no battery option
  • Terminals: RH, RC, W, Y, G, C — not W2, Y2, O/B, E, L, AUX, ACC, S, X, X2
  • Not for multi-stage, heat pumps, heat-only, cool-only, 120–240 V, PTACs, mini splits or RV units
  • 2.4 GHz Wi-Fi only, stated twice · 7-day programming
  • Accurate within 2 °F · 0.98 × 4.72 × 3.86 in

The terminal list is the best thing here

Six supported wires named, eleven unsupported ones named. Unscrew the old thermostat, read the labels, decide in thirty seconds.

Eight other thermostats on this shelf describe system types instead — forced air, hot water, heat pump — which is a translation step this listing skips entirely.

And the accuracy, which runs the wrong way

Two degrees Fahrenheit. The same brand’s non-programmable thermostat on this shelf publishes one degree, at roughly half the price.

Both numbers are published. The cheaper thermostat is the more precise one, and nothing in either listing accounts for it.

Availability

Read on the day this page was built: $50 at the American Amazon shop.

Read from Keepa on the day this page was last revised; stock and price both move without notice.

Prices quoted in this text were read on 2026-10-04. The live price is at the top of the page.

The questions that keep coming up

Why is the Wi-Fi model less accurate than the cheap one?

Nothing in either listing explains it. riseem publishes ±1 °F on the S3001 non-programmable at 26.99 dollars and ±2 °F on this Wi-Fi model at 49.99. Both figures are the maker’s own, and the cheaper one is the tighter.

What does the terminal list tell me?

Everything. RH, RC, W, Y, G and C are the six wires it drives; W2, Y2, O/B, E, L, AUX and the rest are the ones it does not. Take the cover off the old thermostat, count the labeled wires, and the answer is immediate. No other thermostat on this shelf publishes this.

Will it work without a C-wire?

No. The listing says the common wire is a must and that it cannot run on batteries. Three thermostats on this shelf work without one on most systems, and two of those cost less.

More outlet thermostats

  • riseem non-programmable thermostat in white with backlit LCD display

    riseem S3001-White

    A non-programmable single-stage wall thermostat accurate to ±1 °F, running on 24 V or two AA cells with no C-wire on most systems.

    Type
    Wall thermostat, wired to the HVAC system — not an outlet thermostat
    Systems
    Single-stage heating and cooling; gas, oil or electric furnace; boiler radiant; forced air; gas fireplace at 24 V; cooling only
    Not compatible with
    Multi-stage, 3-wire hydronic, heat pumps with or without auxiliary heat, dual fuel, mini splits, RV, convectors, radiant ceiling, electric baseboard at 120–240 V
    Power
    24 V AC or 2 AA batteries; C-wire needed only on heat-only and cool-only systems
    Accuracy
    ±1 °F
    Display range
    41 °F to 95 °F
    Control range
    44 °F to 90 °F
    Swing
    Separate heating and cooling cycle rate
    Installation
    Large terminal blocks, universal sub-base, within 30 minutes; 2 to 5 wires
    Warranty
    2 years, with 30-day free return
    Amazon reference
    B0DNDS8PKF
    EAN
    0607605200691
    • The only thermostat on this shelf that publishes both its compatible and its incompatible system lists
    • Publishes ±1 °F accuracy and both temperature ranges, at the joint-lowest price on this shelf for a wall thermostat
    • Non-programmable: no schedule, no app, no voice control

    Best for: A single-stage furnace or boiler where the thermostat should just hold a temperature, in a wall with no common wire

    ≈ $27
    Check price on Amazon
  • Sensi Smart Thermostat ST55 on a wall with button controls

    Sensi ST55

    A Wi-Fi smart wall thermostat that needs no C-wire in most homes, with a built-in level and a privacy pledge.

    Type
    Wall thermostat, wired to the HVAC system — not an outlet thermostat
    C-wire
    Not required in most applications
    Savings claim
    About 23% on HVAC energy
    Installation
    Built-in level and step-by-step app instructions
    Form
    Buttons, not a touchscreen; fits the footprint of a traditional thermostat
    Privacy
    The maker states it will not sell your personal information to third parties
    Maintenance
    Usage reports, equipment alerts, filter replacement reminders
    Certification
    Energy Star
    Accuracy
    Not stated by the maker
    Amazon reference
    B01NB1OB0I
    EAN
    0786710554827
    • No C-wire in most applications, which removes the single biggest installation obstacle on this shelf
    • The only thermostat here with a privacy commitment in writing, and the only one with a built-in level
    • The 23 per cent saving has no stated baseline, where the ecobee on this shelf names one

    Best for: A retrofit where the wall has no common wire and the old thermostat’s outline must not show

    ≈ $100
    Check price on Amazon
  • Suuwer non-programmable thermostat with blue backlit display on a wall

    Suuwer S701

    A non-programmable single-stage wall thermostat with a 0.2-to-2 °F swing, a selectable five-minute compressor delay and ±1 °F accuracy.

    Type
    Wall thermostat, wired to the HVAC system — not an outlet thermostat
    Systems
    Conventional single stage, up to 1 heat and 1 cool: gas, oil or electric furnace, ventilation and air conditioning
    Not compatible with
    Multi-stage (1H/2C, 2H/2C), heat pumps (2H/1C, 4H/2C), PTACs, 3-wire hydronic, dual fuel, 120–240 V line voltage, mini splits, RV Mach and Roughneck series
    Power
    24 V AC or 2 AAA batteries; no C-wire on most systems
    Swing
    Separate heating and cooling, 0.2 °F to 2 °F
    Compressor delay
    5 minutes, selectable on or off
    Accuracy
    ±1 °F, with room temperature calibration
    Ranges
    Display 41–95 °F; control 44–90 °F
    Warranty
    2 years
    Amazon reference
    B07WTDPPRX
    EAN
    0709327753278
    • The only thermostat on this shelf that publishes a swing range — 0.2 to 2 °F — which is the setting that governs how evenly the house is heated
    • A selectable five-minute compressor delay, which protects an air conditioner from short-cycling and which nothing else here publishes
    • Non-programmable: no schedule, no app, no voice

    Best for: A single-stage system where the owner wants to tune the cycle rate and protect the compressor

    ≈ $27
    Check price on Amazon

Elsewhere in the spares drawer

  • RUNZEG waterproof air conditioner cover fitted over an outdoor unit

    RUNZEG Not stated by the maker

    A waterproof polyester oxford cover 26 by 26 by 32 inches, with a drawstring and a carrying bag.

    Type
    Waterproof, sealed fabric
    Size
    26 in wide × 26 in deep × 32 in high
    Fits
    Outdoor AC units up to 26 × 26 in; also swamp coolers, pool heaters, condensers, heat pumps and compressors of similar size
    Material
    Polyester oxford with a professional waterproof undercoating
    Fixing
    Adjustable drawstring cord
    Keeps out
    Snow, rain, wind, sunlight, dust, resin, leaves, debris, bird droppings
    Cleaning
    Damp cloth or rinse; dries in the sun
    Included
    Carrying bag
    Breathability
    Claimed as more breathable than PVC covers; no figure
    Amazon reference
    B0DG47G9F1
    EAN
    0784668670798
    • Full height at 32 inches and fully waterproof, at the lowest price on this shelf for a sealed cover
    • Names five other appliances it fits — swamp coolers, pool heaters, condensers, heat pumps, compressors — which is the widest application list here
    • It is a sealed cover: moisture that gets in cannot easily get out, and unlike the other waterproof cover here it has no air vent

    Best for: A condenser, pool heater or swamp cooler shut down for the winter in a wet climate

    ≈ $10
    Check price on Amazon
  • XINNIKESI insulated aluminum foil air conditioning pipe cover with zip

    XINNIKESI XINNIKESI

    A zipped double-layer foil and oxford sleeve for refrigerant lines from a quarter inch to one and an eighth.

    Type
    Refrigerant line cover — not a unit cover
    Fits pipe
    1/4 in to 1 1/8 in diameter
    Construction
    Double-layer aluminum foil with reinforced oxford cloth
    Closure
    Zip, universal, no tools
    Protects against
    UV damage, extreme temperatures, heavy rainfall
    Function
    Reflective foil reduces heat transfer; oxford cloth resists tearing
    Use
    Indoor or outdoor; balconies, rooftops, exterior walls
    Systems
    Window-mounted or split systems
    Length
    Not stated by the maker
    Amazon reference
    B0FVR9379C
    EAN
    7698310251965
    • The only product on this shelf for the refrigerant lines, which lose efficiency when their insulation perishes in sunlight
    • Covers a real range of pipe sizes — 1/4 to 1 1/8 inch — with a zip, so it goes on without cutting the line
    • Does not publish its length, which is the dimension you need to know how much pipe it covers

    Best for: A split system whose line insulation has gone grey and crumbly in the sun

    ≈ $17
    Check price on Amazon
  • Acfun universal air conditioner remote control with LCD display

    Acfun Acfun

    A universal LCD air conditioner remote with automatic code search and an 8-to-10-meter range, excluding window and portable units.

    Type
    Universal, LCD, with digital automatic code searching
    Claimed coverage
    Over 1,000 air conditioner brands
    Does NOT work with
    Window or portable air conditioners — stated twice
    Also excluded
    Frigidaire, Mitsubishi, Sanyo, and Sharp AF-Q60RX
    Range
    Approximately 8 to 10 meters (26 to 33 ft)
    Batteries
    2 × AAA, not included
    Manual
    English, in the package and in the listing images
    Programming
    Required — automatic code search
    Contradiction
    The title lists Mitsubishi as supported; the fifth bullet lists it as unsupported
    Amazon reference
    B07DN9PYKQ
    EAN
    0656516056903
    • The only remote on this shelf that publishes a working range: approximately 8 to 10 meters (26 to 33 ft)
    • The lowest price here, with an automatic code search and an English manual included
    • It does not work with window or portable air conditioners, which is most of what this site covers

    Best for: A wall-mounted split or ductless indoor unit from a brand not on its exclusion list

    ≈ $7
    Check price on Amazon

All outlet thermostats